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 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 0xa77d102a7f669500d28d6ab21d50783f9e5e8204bd7f80aa3d9b9bc59e029583. 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/a6e654fe-e448-47f7-8ad5-450e6a0c174a.json and https://artists.proofprofile.net/proofs/artist/a6e654fe-e448-47f7-8ad5-450e6a0c174a.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 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 0x77553ae423ab1c2a861b98598415663cd1f2bb89ede275d959057e42a3dfeb68. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZFZ62141221.
5 South, The Trip I Won't 4 Get, Job 37:2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaddc0b79cf013639d4575f72dcae71957e1bdaea2d091d3e0ac046b86920057. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/QZFZ62141225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba9cc17737c7febe2be3f5fba6fda3f70e6b2016cec572f38c17edec640e0167. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZFZ62141229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fb364f7b0ee7975c15fc70ff3f814e3b7bacb146fb0f49c74486e6446c70263. 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/QZNWX2144877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b25834a3af768c61041255c37c52a60915ca9f2825e3c44732d3c1114614b68. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZHN62181225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66285e8ff0076d10dd70e7d01d2ffa1ccb250f6f4cf939814750e16cddaab8c2. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/QZTAT2147843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c7f9e3e62794b26052e9fd0c524e4f191ae1cfeb199f8babb274523e074abba. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZTAT2147844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26b56a2703a6a26319b8530897538edbe811d761171a330e3b6a7d89ed14b007. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZTAT2147845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00214baed158466408278f15a8600463f57ff3ee20f1f47c4999858d1eb45f26. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZTAT2147847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe139546a739cb1ee338b0bd86bb7a3b6e9e49b1dfb592379fcea92edf0707404. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZTAT2147848.
3 In 1 (Closer To My King/Set Free/The Little Things)
We Sing and Praise, O Elohim, Tehillim (Psalms) 57
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1cd83d11904a25566038e43e8be69a093f4a5c4a7b3515e0d76b9e38d707f25. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZHN32379938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40a774f8f08fb53fd74cb479b7fa3cca46370c31eb225a7b11aefd70ddb432b8. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZHN32379942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ba86b6368ab1ae731830703981fefe087577fc6fc7a46970543ae31adcd612. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/QZHN32379944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a8e796218982815e6cc0a77eccebc72a4c59a524ca10fef544d73645fb23cfa. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZHN32379946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25313eea3540376499441e61eb3cf7e7c72ad5c6ed38269962e52421dd0d50e8. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZHN32379949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ffde2671ced101ea270531fdab44607a71d67f6a454e9f2200de66889dbbbb6. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T09:08:06Z), 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/QZHN32379952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf99bebf87f97d888233a471c31b942aef06893e401b5e286c7cdb438c0421a75. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZHN32379954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3beb5fcfc4d92321a0261d7b96863adbdd5c411d7356aa7bc10075204b73bcd6. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZHN32379962.