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 0xceeaa3a6c6faf6b24b850c566fd99f09a220c718ceff9c859994f925f7b93152. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/889c12dc-a21d-4ea4-86eb-c492f6d23d79.json and https://artists.proofprofile.net/proofs/artist/889c12dc-a21d-4ea4-86eb-c492f6d23d79.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 0x93ff2bb291d29c7aeadec7007725d7737556c8d4785caca22cf2e5858858ca62. 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/TRAAA9902558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa83537662c5895a75e273e8283da846c6b1e2e58cbcb883d5cf5a01b015586b3. 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/TRAAA9902560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x543721e5d4e92c1875fdfffecc9e5c461f2f32cf9a4b0c28e8ae867c6615f9f0. 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/TRAAA9902561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7be394bad1cedb570726b288e199ffab8910471d07e4e0b4abb5777790aadd31. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/TRAAA9902559.
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
Mevlana Zekai Dede'nin Isfahan Mevlevi Ayini
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x594ec790b87fe1921e5f3580972d518bdcb5fabd93946bd61d33ab03984e4dd6. 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/TRAAA9200147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf70f1f959faf5c7522457d3ebc9de8d03d6a655e0fb9e176b79f44d2095288f7. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/TRAAA9200148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87382ed8d6e022f694f4ba7f40ee2b8b02fa9deabe5afaf32ce70c29a9aebecd. 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/TRAAA9200151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51f855f295ca20423fccbc8a4c45d4f4516b1bfe185006c320d12fabb375a1c0. 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/TRAAA9200153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48959e38090ef5cd938b443b86be5dcb488fc0d2f8206b11ee562f5f57c00d85. 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/TRAAA9200154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48dc5cc1a726fb91ca60ca9de0b9e49155554cc565b1e2d65725f7470eac8036. 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/TRAAA9200155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4608ea46467fcbfcae36495672a43cda74d97c8da006231a1f41875eb28c98c. 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/TRAAA9200156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2251d682db1d8551f7b893937c410e4068fcb4ee0cbaeeeca4e12f22367ab2bb. 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/TRAAA9200157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cac5f6eafcfbc7d2ad4fadbd828ae98d83477dbacbb41322c578083f27899ae. 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/TRAAA9200158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb62e6bf6441456a49e1f465ae0faa1f2619c252aa42d6286b8d1ac85ae318430. 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/TRAAA9200160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x837222f6661e7243565d458de434a1214bd5c494166539dd18ef4811fd013849. 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/TRAAA9200162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22745dc3b3f73e2e1d72331b2e64575230708b9327ddea1509c525b128794d9b. 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/TRAAA9200149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba178558837b5eb44f9a75f95bdc8aa198eb5fdf55376cfc8eab50853744fa45. 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/TRAAA9200150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd549b4e7293c8f8a08e777c4681b4ad9103dd0c76cd564d07b31f8a490543c6d. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/TRAAA9200152.
Mevlana: Music Of The Whirling Dervishes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6cb5a78d8228ac018af7cb8bd02c2a86b2679a735613354d35d33b90623579d. 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/TRAAA9200346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fa8bdfb78ee27b9399cf66b2c4498f2cc74769a38b046273956c6ba29880747. 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/TRAAA9200348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12ee6db4786951e18f844d65b45ad703949a7558539c3c2f06422a5cf4962922. 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/TRAAA9200352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b5aab978a96d9a5c18e2fc1d142feddf150f39be7924cd8bbcb6e245a65952. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/TRAAA9200341.