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 0x608ed0fccf9900a211131ea16537f609f9d4126e00cc898c10cdbcbdc3684b41. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b5aea949-ea89-4c30-842b-59f0ba289c4a.json and https://artists.proofprofile.net/proofs/artist/b5aea949-ea89-4c30-842b-59f0ba289c4a.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 0x0d78f3edf2d1a5512492094a9cfa622854f28aef112138da5518f8c57711194a. 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/TCJPT2288798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x067593555049a4059a4edfe8033d0c58bf6e657b205d3e193567d8cf5c76c82e. 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/TCJPT2288806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x873cccb88281b6ac29ccc919d748fb45cabf52f5f47e4a5c2c13227d6adb95c7. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TCJPT2288809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44d171be8b97dcb3ff6cd595102fa4b85dbfb1a0353fa699a165c6316125292e. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/TCJPT2288814.
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 0x8436b80a32121ab1f87c650d7ce008001cb73144ff2e83ef4f97c979567ced8d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TCJPY2499550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec3f4454b22d2a2794ba21db2c5ba71e75d17346fb76755eb753d7a4aa2524bb. 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/TCJPY2499553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3cfa6408c349b2e7ec10cc5013a8812e213d615a4c2af27241b1efa97155341. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/TCJPY2499554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe215944b7f6a1fb2a097319a19b26b53ba29f5fdefc2c1ae7c17673944a09994. 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/TCJPY2499555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97529217045c8ed05a0b245346c83e16f4bc7ed3dbeb2b8dbda088232ae8ff3d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TCJPY2499556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2363ed9c823114d3612ed8e323726925d5c76858aff2efa647ef2d71b014f61d. 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/TCJPY2499557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x755dd9fc9ccbc73b9ad8a50c745a9c7a63099c1feeb6f784ec3c100e66806d04. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/TCJPY2499559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05c9e141e1483662fe72d07b0bb3bdd7c05cdbf8d1c3d21dc2e135f635097f17. 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/TCJPY2499560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe769335747c96a82156e4430165cc240d65aff039dee728bb55398476fe01c90. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TCJPY2499562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6633cb26572f2b0641cea09a9489c0a537e08eb14ac6d1aebd41241302e3405. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/TCJPY2499563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0d0d7c4cc5bf71e6c953edfd1c7a9bf1924aa2e0494918553df54fe7a4997cf. 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/TCJPY2499565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x913d0823464d4beca063cf836e55997d80d60cc852ffcb7e70e04190da39b817. 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/TCJPY2499567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x242b7190477a3946512c0dab1bd82d98a87d01ca4a77f5f9e944d9e4eb79e844. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCJPY2499568.
we are until we are buried [and then we are not]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x821fc4c9be9962d1c112116935f5272cce2ed64f1ebfd34e2aed4a129a083dc6. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QM32Q2300333.
two spirits wandering the earth [with one shadow]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4cfa78da414786fba4e591268449da5dee51eb5bda1a33e635106c0102488b4. 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/QM32Q2300331.
despair falls [one light-second into the cosmos]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c9ef64f3b9efe905a82f24f1859ef87c3b53cc7962d080066d9ff4b352b4f41. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/QM32Q2300332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9eccb64ddccc3dea6b53befb34daf27ea607089d17a9d1b9c2e24dd6107cfb5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZWV32453415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f31918d3abb6ab0d3a99dd14bf9f068124bc45f619389f4571a142b719d2f20. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TCAHW2475236.
A Glimpse of the Abyss - alternative version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24fb5031de1805aa008db5cc90f76412c65828c0fa7bc2169f0691cb9f5b58b6. 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/QZDA72387411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf86e35dcb89098ae71fe126159cd0b617bdab569aed86c33551135d3edddbf40. 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/QZDA72387412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95207a774fa89f8d8802ad609b01f0ab785c1f490beff2c4890180f1a4d82e92. 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/QZDA72387413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9d4d187df36b06d94f40b265db602e9b0c22380b692f6c5ca0a408b6ec81b00. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZDA72387414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fd2e9053f560c0258cad9da03ea4535e373717a71944ce987e930030885b634. 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/QZDA72387415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ce2ef8f63e8b80997dfc1666efa0dea9b1669f20fb7298ac191aa0387f3f573. 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/QZDA62321859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7110652e7378f92f2943c97092ac4e1ad6ea9a29c73df4219d3e8cd27ed7cc65. 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/QZHN52009660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99e566eeecd2b102184ade8226ec214f53858b4b16e29d81e6c3b97fc65b013a. 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/QZHN52009662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cb0f8dad8ebc41ea7edd705f82826bcabb228fbd6014f53e446df7b7eb84741. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZHN52009667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4dc8a67c679c11b1ffcb685b393ad62151a368781a3a7604d079360227ddab2. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZHN52009668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfe82f02d4dd16d6134feda0f8b39a904e5c3fb44a01e17b93278e8ddffd86bb. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZHN52009669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e4076a4ca1dcdacc4685909df966101ab77adba57587db96e715dbd72562eaa. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QZHN52009664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe72319bd85cfe3448ed2e0fa28e569c5329b0ac33696854d50acf49be31a53aa. 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/CA5KR2041336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafaed439f000f9e13eec2952cd0aa9863f6258588691a6383b6eda9240bd633e. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/CA5KR2041335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e52aed0530d01fcb639de65aed3822add043c64761de063ad1872b82b43f5a6. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/CA5KR2041332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85196f8dd1c70f072af2ebf09c15c756fd5c85449c4b248ad4e3855a7e3828f9. 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/QZHN62184234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54ec74299ddfdd001eafe83219fa3e304ed379d7065cd6500f53da3bb7ce4a1c. 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/QZTAS2152937.