1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ac593893ad37cf70026a5531a38790caad591b6c3487079bdbd388ccb73a569. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8f0d9b6e-8402-4ebf-99ab-aa9e61b5ad88.json and https://artists.proofprofile.net/proofs/artist/8f0d9b6e-8402-4ebf-99ab-aa9e61b5ad88.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x167cf16ca380531c748d1a647e595a6d018965c044f70ed1d59fe0b74acb7510. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22316499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aeae00396a772900f8e5d65b5923f8787a7490a99983cb18ca5878ecd83646b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22316500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaf0cc4875e718ec36a2128bbb2ec292bc996cb76d0aaf6c683081818fc74b64. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22316505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc4d5e6f9e00665a2b80ee4fbb25401db649224b24b74cc6c7b8f2d2c6e8988c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22316510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5271a79f9cf0aeb365ac37dbc525eef5d822bbba1497f2c25009d280c95bd5d2. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22316512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e844e0b407143f446fc04fe8309af50a5ed505e5c3247df43272fd9d74f6a36. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22316513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d08328d7fd7474997b8d0b7f9cebedfd102dced493ced9cdad74b0b9e7b0ce2. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22316501.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37b3634cc6809232faa100e9a1fde090a5e9203e7d35349aa9fdd3bf4c0b8703. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22316502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd58035f96cd59e378e07b2641e71d81c33da959bf34a3b6e6d278322466e04e8. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22316503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20316ce8dfa033f6bebcde02fdfc174c960e2b4030fcf2b83c67c30d164960ba. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22316504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x808680290e04ac412cb8166da24bec8939b0221fbb2653012a863066b1739c22. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22316506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x907d399e96dcf54944b342338fbce6657fda70d3e6b4abdf48c8681ff2e28126. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22316507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c1677e1e987b3e62d62e9c3e482da263f6873cd67bf4947e8ce0470ad0722e4. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22316508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d570df11d33bf78da3ab8b4829df6f2af122c170d2f1dd22dbb996eeb5beb5f. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22316509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb7c17a594e194ddd92da178884a9ad2258bc6c5a79632f1649d11ed426c93d2. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22316511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa72a9a90f4e0490efc6d894bd5e5349756cf5c0cf39d8b94543620c55b78411. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22316514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38c2b1d6b19d4d0da4580e69ac5713082920ad20a1ce81512a902f3e5e63c8bd. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22316467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9c58778b566237cae235fa1df93d4c3908adeb6af1c14cf895670a68e7ccc7d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22316468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18b9f14ea09da1adc092e433cd3828949f4af5d577c520337b7464e901aedde7. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22316470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb9a14e64a14310982878c0c4d9c357bcf403009e070735b0cd90260b1e81308. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22316472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bf95e25c6177a3431537c36818a2c6ec0b70d93d44451c02dd584941ea78f04. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22316473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2adf262b48656c5e9018709f18265793f52ecc648cd3be3e8df90f81a35d23b9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22316474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa713dd7a72ccc9082481e8edbaf88e41fbc84da0393a03ba3ee070c552394067. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22316475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa895db408ccb790c24d88daca5bcaa8983313a8d57cd15319cb22f67dbd42b66. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22316478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2d04108853e1d5bb514b20c825394ac6f17ed52a48b1a322df20d169b2948c8. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22316479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72b33f81f018ec10beede0703ad396b2897a16b2b907da740d74cec6cb8e8a4c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22316480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa40c673e7559c3f3f33414f2e559bbf5b49182fd1ff981187c1a3e36dff81c36. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22316481.
Calling Occupants of Interplanetary Craft
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde63b796f8fd395f7042ae369668cb018d48d5eb50bf89b95a338ccda45f6523. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22316482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x139a7e9881b97d2efb688d2ab0227d69c396537c74a1873c20bb696cda4f707d. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22316469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba569d3a78a7baa224f50d6315bac94deb4e82e8e9d0525440c3161b6500062d. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22316471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x613cc516963cfc77d26922082679d2293bde9d1d1a0cf8f18f8d84607f311177. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22316476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9cad9d9c929ae57321d8a0e11a7a9dcf6947f4140d35cd4fd6e025eca202ce9. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22316477.