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 0x891a8bfedd59a7faf6149964d8a6bee5fead8946e0400de0ce6d3f3a4131bd65. 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/8c73fb76-91a9-481e-8406-a2f205ba9046.json and https://artists.proofprofile.net/proofs/artist/8c73fb76-91a9-481e-8406-a2f205ba9046.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 0xee4e2ba645adb0a61eab5cf62bf48667a6f94b5cb315eecaa8f7c736b090c7a1. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/TCJPH1841835.
Ain't nothing (feat. Friday Night Plans)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x059683232d7a20f030e42952b401267dd4b6707394e9ee5ae17f536d46d19078. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCJPI1960034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62530d8e34fc4251ec570f5a4168068d47164bcd2a1340c8f85a08610b5351b7. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:32:42Z), 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/TCJPI1960042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x522feff83b23c35f820555f22900c799d361096febd2eab54eed189007b645e8. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TCJPI1960031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ede5e28b10bca98f3904740253a4302d7bb97df5137437683c483b1f11e4efa. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/TCJPJ1914133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfe54a59b1822002dff7bd7ee2afac106f20478b0dfe61c3e44e74685272f594. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCJPK1908689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfe54a59b1822002dff7bd7ee2afac106f20478b0dfe61c3e44e74685272f594. 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/TCJPK1908689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c8019fdd24875c3ca02e5eb8b27cf463691e8b1ceb9efb2b020c0d3bbb1fa39. 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/TCJPK1908691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c61191e25ee7dae0e3544691cdaeef5d7951ecaa81c8b968724551b2518a99b. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TCJPK1908693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde09995718d8dc784bc9a760ea0289c31354fa418703dd99ffb04dcbcc5ce962. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T02:32:40Z), 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/TCJPB2484279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaba8c13ba62bb7d200eb4900c9b4cc4462c8e309c21cbb2063faf6a2abf2918. 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/JPJ902005510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf45f07224f25b03ffecb9346be31ce4aebd2577ea4a284e1a6ebff8d6e44c1a9. 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/JPM591001082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4202e71c0948aa5ba7028f9e6d9e768e103f4d526e99d43a37c152c10ddaf333. 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/JPV501800548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ceaf112c6ce2699345a36cbf9aa12871ef13b66a3d4da0823219324be3e5743. 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/TCJPJ1980534.
Did it. (morning) [feat. Taeyoung Boy & Drivxs]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aca9d230f0c2d4bcf01b62af9b592e616d1c2825d56bf9717ac2bd511a947ad. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/TCJPI1994563.
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 0xc1f6a834b4c4e4112cda9dd748be5ad411ddc3e587269fa24a4a4da39238b024. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/JPM591001123.