diff --git a/Cargo.lock b/Cargo.lock
index b4c03b4..5900d2f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -52,12 +52,27 @@ version = "1.0.102"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7f202df86484c868dbad7eaa557ef785d5c66295e41b460ef922eca0723b842c"
 
+[[package]]
+name = "ar_archive_writer"
+version = "0.5.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "73cd58deff2140a0a8eae87e417bd01db68a33e148aa93d1e8cd837e55e312b6"
+dependencies = [
+ "object",
+]
+
 [[package]]
 name = "autocfg"
 version = "1.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f2032f911046de80f0a198e0901378627c33f59ea0ac00e363d481118bd70a53"
 
+[[package]]
+name = "base16ct"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4c7f02d4ea65f2c1853089ffd8d2787bdbc63de2f0d29dedbcf8ccdfa0ccd4cf"
+
 [[package]]
 name = "base64"
 version = "0.22.1"
@@ -152,6 +167,18 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "crypto-bigint"
+version = "0.5.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0dc92fb57ca44df6db8059111ab3af99a63d5d0f8375d9972e319a379c6bab76"
+dependencies = [
+ "generic-array",
+ "rand_core 0.6.4",
+ "subtle",
+ "zeroize",
+]
+
 [[package]]
 name = "crypto-common"
 version = "0.1.7"
@@ -174,8 +201,8 @@ dependencies = [
 
 [[package]]
 name = "cultcache-rs"
-version = "0.2.0"
-source = "git+https://github.com/GameCult/CultLib.git?rev=3bf1c0cea53e0092187fa2e59a75ba1571947ffe#3bf1c0cea53e0092187fa2e59a75ba1571947ffe"
+version = "0.3.1"
+source = "git+https://github.com/GameCult/CultLib.git?rev=7665df33ae1b4335c3343914e2b85fde01d48311#7665df33ae1b4335c3343914e2b85fde01d48311"
 dependencies = [
  "anyhow",
  "chrono",
@@ -186,14 +213,16 @@ dependencies = [
  "serde",
  "serde_bytes",
  "serde_json",
+ "serde_stacker",
+ "stacker",
  "uuid",
  "windows-sys 0.59.0",
 ]
 
 [[package]]
 name = "cultcache-rs-derive"
-version = "0.1.0"
-source = "git+https://github.com/GameCult/CultLib.git?rev=3bf1c0cea53e0092187fa2e59a75ba1571947ffe#3bf1c0cea53e0092187fa2e59a75ba1571947ffe"
+version = "0.2.0"
+source = "git+https://github.com/GameCult/CultLib.git?rev=7665df33ae1b4335c3343914e2b85fde01d48311#7665df33ae1b4335c3343914e2b85fde01d48311"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -202,19 +231,21 @@ dependencies = [
 
 [[package]]
 name = "cultmesh-rs"
-version = "0.1.0"
-source = "git+https://github.com/GameCult/CultLib.git?rev=3bf1c0cea53e0092187fa2e59a75ba1571947ffe#3bf1c0cea53e0092187fa2e59a75ba1571947ffe"
+version = "0.2.0"
+source = "git+https://github.com/GameCult/CultLib.git?rev=7665df33ae1b4335c3343914e2b85fde01d48311#7665df33ae1b4335c3343914e2b85fde01d48311"
 dependencies = [
  "anyhow",
+ "base64",
  "cultcache-rs",
  "cultnet-rs",
+ "p256",
  "serde",
 ]
 
 [[package]]
 name = "cultnet-rs"
-version = "0.1.0"
-source = "git+https://github.com/GameCult/CultLib.git?rev=3bf1c0cea53e0092187fa2e59a75ba1571947ffe#3bf1c0cea53e0092187fa2e59a75ba1571947ffe"
+version = "0.3.0"
+source = "git+https://github.com/GameCult/CultLib.git?rev=7665df33ae1b4335c3343914e2b85fde01d48311#7665df33ae1b4335c3343914e2b85fde01d48311"
 dependencies = [
  "aes-gcm",
  "anyhow",
@@ -222,7 +253,9 @@ dependencies = [
  "chrono",
  "cultcache-rs",
  "ed25519-dalek",
+ "fs2",
  "hmac",
+ "libc",
  "rand",
  "rmp-serde",
  "rmpv",
@@ -286,10 +319,25 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9ed9a281f7bc9b7576e61468ba615a66a5c8cfdff42420a70aa82701a3b1e292"
 dependencies = [
  "block-buffer",
+ "const-oid",
  "crypto-common",
  "subtle",
 ]
 
+[[package]]
+name = "ecdsa"
+version = "0.16.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ee27f32b5c5292967d2d4a9d7f1e0b0aed2c15daded5a60300e4abb9d8020bca"
+dependencies = [
+ "der",
+ "digest",
+ "elliptic-curve",
+ "rfc6979",
+ "signature",
+ "spki",
+]
+
 [[package]]
 name = "ed25519"
 version = "2.2.3"
@@ -314,6 +362,25 @@ dependencies = [
  "zeroize",
 ]
 
+[[package]]
+name = "elliptic-curve"
+version = "0.13.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b5e6043086bf7973472e0c7dff2142ea0b680d30e18d9cc40f267efbf222bd47"
+dependencies = [
+ "base16ct",
+ "crypto-bigint",
+ "digest",
+ "ff",
+ "generic-array",
+ "group",
+ "pkcs8",
+ "rand_core 0.6.4",
+ "sec1",
+ "subtle",
+ "zeroize",
+]
+
 [[package]]
 name = "equivalent"
 version = "1.0.2"
@@ -336,6 +403,16 @@ version = "2.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9f1f227452a390804cdb637b74a86990f2a7d7ba4b7d5693aac9b4dd6defd8d6"
 
+[[package]]
+name = "ff"
+version = "0.13.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c0b50bfb653653f9ca9095b427bed08ab8d75a137839d9ad64eb11810d5b6393"
+dependencies = [
+ "rand_core 0.6.4",
+ "subtle",
+]
+
 [[package]]
 name = "fiat-crypto"
 version = "0.2.9"
@@ -396,6 +473,7 @@ checksum = "85649ca51fd72272d7821adaf274ad91c288277713d9c18820d8499a7ff69e9a"
 dependencies = [
  "typenum",
  "version_check",
+ "zeroize",
 ]
 
 [[package]]
@@ -444,6 +522,17 @@ dependencies = [
  "polyval",
 ]
 
+[[package]]
+name = "group"
+version = "0.13.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f0f9ef7462f7c099f518d754361858f86d8a07af53ba9af0fe635bbccb151a63"
+dependencies = [
+ "ff",
+ "rand_core 0.6.4",
+ "subtle",
+]
+
 [[package]]
 name = "hashbrown"
 version = "0.15.5"
@@ -582,6 +671,15 @@ dependencies = [
  "autocfg",
 ]
 
+[[package]]
+name = "object"
+version = "0.39.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2e5a6c098c7a3b6547378093f5cc30bc54fd361ce711e05293a5cc589562739b"
+dependencies = [
+ "memchr",
+]
+
 [[package]]
 name = "odin-core"
 version = "0.1.0"
@@ -624,6 +722,18 @@ version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c08d65885ee38876c4f86fa503fb49d7b507c2b62552df7c70b2fce627e06381"
 
+[[package]]
+name = "p256"
+version = "0.13.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c9863ad85fa8f4460f9c48cb909d38a0d689dba1f6f6988a5e3e0d31071bcd4b"
+dependencies = [
+ "ecdsa",
+ "elliptic-curve",
+ "primeorder",
+ "sha2",
+]
+
 [[package]]
 name = "pin-project-lite"
 version = "0.2.17"
@@ -681,6 +791,15 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "primeorder"
+version = "0.13.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "353e1ca18966c16d9deb1c69278edbc5f194139612772bd9537af60ac231e1e6"
+dependencies = [
+ "elliptic-curve",
+]
+
 [[package]]
 name = "proc-macro2"
 version = "1.0.106"
@@ -690,6 +809,16 @@ dependencies = [
  "unicode-ident",
 ]
 
+[[package]]
+name = "psm"
+version = "0.1.32"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4dcd034599e63b970727f70d79e02d62390a4a84f7c6b827c27c46d5ac3fa622"
+dependencies = [
+ "ar_archive_writer",
+ "cc",
+]
+
 [[package]]
 name = "quote"
 version = "1.0.45"
@@ -758,6 +887,16 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "rfc6979"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f8dd2a808d456c4a54e300a23e9f5a67e122c3024119acbfd73e3bf664491cb2"
+dependencies = [
+ "hmac",
+ "subtle",
+]
+
 [[package]]
 name = "rmp"
 version = "0.8.15"
@@ -816,6 +955,20 @@ version = "1.0.22"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b39cdef0fa800fc44525c84ccb54a029961a8215f9619753635a9c0d2538d46d"
 
+[[package]]
+name = "sec1"
+version = "0.7.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d3e97a565f76233a6003f9f5c54be1d9c5bdfa3eccfb189469f11ec4901c47dc"
+dependencies = [
+ "base16ct",
+ "der",
+ "generic-array",
+ "pkcs8",
+ "subtle",
+ "zeroize",
+]
+
 [[package]]
 name = "semver"
 version = "1.0.28"
@@ -875,6 +1028,17 @@ dependencies = [
  "zmij",
 ]
 
+[[package]]
+name = "serde_stacker"
+version = "0.1.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d4936375d50c4be7eff22293a9344f8e46f323ed2b3c243e52f89138d9bb0f4a"
+dependencies = [
+ "serde",
+ "serde_core",
+ "stacker",
+]
+
 [[package]]
 name = "sha2"
 version = "0.10.9"
@@ -918,6 +1082,7 @@ version = "2.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "77549399552de45a898a580c1b41d445bf730df867cc44e6c0233bbc4b8329de"
 dependencies = [
+ "digest",
  "rand_core 0.6.4",
 ]
 
@@ -947,6 +1112,19 @@ dependencies = [
  "der",
 ]
 
+[[package]]
+name = "stacker"
+version = "0.1.25"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "707f49d46706bacf8a2b00d51dace3f9de527c13eec3778f570c411f89e69967"
+dependencies = [
+ "cc",
+ "cfg-if",
+ "libc",
+ "psm",
+ "windows-sys 0.61.2",
+]
+
 [[package]]
 name = "subtle"
 version = "2.6.1"
diff --git a/crates/odin-core/Cargo.toml b/crates/odin-core/Cargo.toml
index 76d2955..508bfbb 100644
--- a/crates/odin-core/Cargo.toml
+++ b/crates/odin-core/Cargo.toml
@@ -11,9 +11,9 @@ path = "src/lib.rs"
 
 [dependencies]
 anyhow = "1"
-cultcache-rs = { git = "https://github.com/GameCult/CultLib.git", rev = "3bf1c0cea53e0092187fa2e59a75ba1571947ffe", package = "cultcache-rs" }
-cultmesh-rs = { git = "https://github.com/GameCult/CultLib.git", rev = "3bf1c0cea53e0092187fa2e59a75ba1571947ffe", package = "cultmesh-rs" }
-cultnet-rs = { git = "https://github.com/GameCult/CultLib.git", rev = "3bf1c0cea53e0092187fa2e59a75ba1571947ffe", package = "cultnet-rs" }
+cultcache-rs = { git = "https://github.com/GameCult/CultLib.git", rev = "7665df33ae1b4335c3343914e2b85fde01d48311", package = "cultcache-rs" }
+cultmesh-rs = { git = "https://github.com/GameCult/CultLib.git", rev = "7665df33ae1b4335c3343914e2b85fde01d48311", package = "cultmesh-rs" }
+cultnet-rs = { git = "https://github.com/GameCult/CultLib.git", rev = "7665df33ae1b4335c3343914e2b85fde01d48311", package = "cultnet-rs" }
 serde_json = "1"
 serde = { version = "1", features = ["derive"] }
 
diff --git a/crates/odin-daemon/Cargo.toml b/crates/odin-daemon/Cargo.toml
index a5707d5..268e841 100644
--- a/crates/odin-daemon/Cargo.toml
+++ b/crates/odin-daemon/Cargo.toml
@@ -13,9 +13,9 @@ path = "src/lib.rs"
 signal-hook = "0.3"
 anyhow = "1"
 chrono = "0.4"
-cultcache-rs = { git = "https://github.com/GameCult/CultLib.git", rev = "3bf1c0cea53e0092187fa2e59a75ba1571947ffe", package = "cultcache-rs" }
-cultmesh-rs = { git = "https://github.com/GameCult/CultLib.git", rev = "3bf1c0cea53e0092187fa2e59a75ba1571947ffe", package = "cultmesh-rs" }
-cultnet-rs = { git = "https://github.com/GameCult/CultLib.git", rev = "3bf1c0cea53e0092187fa2e59a75ba1571947ffe", package = "cultnet-rs" }
+cultcache-rs = { git = "https://github.com/GameCult/CultLib.git", rev = "7665df33ae1b4335c3343914e2b85fde01d48311", package = "cultcache-rs" }
+cultmesh-rs = { git = "https://github.com/GameCult/CultLib.git", rev = "7665df33ae1b4335c3343914e2b85fde01d48311", package = "cultmesh-rs" }
+cultnet-rs = { git = "https://github.com/GameCult/CultLib.git", rev = "7665df33ae1b4335c3343914e2b85fde01d48311", package = "cultnet-rs" }
 fs2 = "0.4"
 rmp-serde = "1.3"
 serde = "1"
diff --git a/crates/odin-daemon/src/main.rs b/crates/odin-daemon/src/main.rs
index d7d5c39..2e59cb4 100644
--- a/crates/odin-daemon/src/main.rs
+++ b/crates/odin-daemon/src/main.rs
@@ -1930,6 +1930,122 @@ mod tests {
         Ok(())
     }
 
+    /// A receipt-capable publisher: says hello with both receipt frames, puts
+    /// each document under its own id, and returns the schema frames Odin
+    /// answers with (its hello first, then one answer per put).
+    fn receipt_peer(
+        target: SocketAddr,
+        connection_id: u32,
+        puts: Vec<(&'static str, &'static str, &'static str)>,
+    ) -> Result<Vec<CultNetMessage>> {
+        let socket = UdpSocket::bind("127.0.0.1:0")?;
+        socket.set_read_timeout(Some(Duration::from_millis(100)))?;
+        let mut transport = CultNetRudpSocketTransportConnection::new(
+            CultNetRudpSocketTransportOptions::client("receipt-peer", socket, target, connection_id),
+        )?;
+        transport.connect(Vec::new())?;
+        let deadline = Instant::now() + Duration::from_secs(5);
+        while !transport.connected() {
+            let _ = transport.receive_once()?;
+            transport.poll_resends()?;
+            ensure!(Instant::now() < deadline, "timed out connecting");
+        }
+        let mut send = |message: CultNetMessage| -> Result<()> {
+            transport.send_reliable(
+                "schema",
+                encode_cultnet_message_to_vec(&message, CultNetWireContract::CultNetSchemaV0)?,
+            )?;
+            Ok(())
+        };
+        send(CultNetMessage::Hello {
+            runtime_id: "receipt-peer".into(),
+            runtime_kind: "test".into(),
+            agent_id: None,
+            role: None,
+            display_name: None,
+            supported_document_types: None,
+            supported_mutation_contracts: None,
+            supported_message_versions: Some(vec![
+                "cultnet.write_admitted.v0".into(),
+                "cultnet.error.v1".into(),
+            ]),
+            transport_profiles: None,
+            supports_schema_catalog: None,
+        })?;
+        for (id, schema, key) in &puts {
+            send(CultNetMessage::DocumentPutRaw {
+                message_id: (*id).into(),
+                document: CultNetRawDocumentRecord {
+                    schema_id: (*schema).into(),
+                    record_key: (*key).into(),
+                    stored_at: rfc3339_millis(unix_millis()?)?,
+                    payload_encoding: CultNetRawPayloadEncoding::Messagepack,
+                    payload: vec![1],
+                    source_runtime_id: None,
+                    source_agent_id: None,
+                    source_role: None,
+                    tags: None,
+                },
+            })?;
+        }
+        let mut frames = Vec::new();
+        let deadline = Instant::now() + Duration::from_secs(5);
+        while frames.len() < puts.len() + 1 && Instant::now() < deadline {
+            if let Some(frame) = transport.receive_once()? {
+                if frame.channel_id == "schema" {
+                    frames.push(cultnet_rs::decode_cultnet_message_from_slice(
+                        &frame.payload,
+                        CultNetWireContract::CultNetSchemaV0,
+                    )?);
+                }
+            }
+            transport.poll_resends()?;
+        }
+        Ok(frames)
+    }
+
+    /// The CultNet write receipt through Odin's own sink and server: an
+    /// admitted put is answered `write_admitted` carrying its id, and a put the
+    /// sink refuses is answered `error.v1` carrying its id, never dropped.
+    #[test]
+    fn a_receipt_peer_is_told_admitted_or_refused_for_each_put_by_id() -> Result<()> {
+        let mut odin = activated_odin()?;
+        let target = odin.server.local_addr()?;
+        let frames = odin.serve_while(move || {
+            receipt_peer(
+                target,
+                PEER_CONNECTION_BASE + 2,
+                vec![
+                    ("ok-1", "ghostlight.doc.v1", "doc-1"),
+                    ("refused-1", "odin.topology_publisher_watermark.v1", TARGET),
+                ],
+            )
+        })??;
+        assert_eq!(frames.len(), 3, "hello and one answer per put: {frames:?}");
+        assert!(matches!(&frames[0], CultNetMessage::Hello { .. }));
+        assert_eq!(
+            frames[1],
+            CultNetMessage::WriteAdmitted {
+                message_id: "ok-1".into(),
+                operation: "put".into(),
+                schema_id: "ghostlight.doc.v1".into(),
+                record_key: "doc-1".into(),
+            }
+        );
+        let CultNetMessage::ErrorV1 { message_id, .. } = &frames[2] else {
+            panic!("a refused put must be answered error.v1: {:?}", frames[2]);
+        };
+        assert_eq!(message_id.as_deref(), Some("refused-1"));
+        assert_eq!(odin.server.session_count(), 1, "the refusal kept the session");
+        let stored: BTreeSet<String> = SingleFileMessagePackBackingStore::new(&odin.store)
+            .pull_all_read_only_snapshot()?
+            .into_iter()
+            .map(|entry| entry.key)
+            .collect();
+        assert!(stored.contains("doc-1"), "the admitted put is stored");
+        Ok(())
+    }
+
     /// Soul's 70-lingering-session probe: with the server's session table
     /// full of publishers that never Disconnect, Odin's own heartbeat still
     /// lands. The table is Odin's own production server bound to the candidate