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 0x2f6c756c4ea36daf977b478b71efa9478b9878e71c8736f628931dc851cc644a. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e5141f6a-bce9-4b6a-b38d-c22c7ca27450.json and https://artists.proofprofile.net/proofs/artist/e5141f6a-bce9-4b6a-b38d-c22c7ca27450.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Love (feat. M. Parvez aka The Dub Factory)
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 0xe06bf55d3b087855e834b3c3c44e43c0827e5cfc689e0acda0d6b20551ef8e97. 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/FR5R00905377.
Badman remix (feat. Ras Demo aka Demolition Man & DJ Vadim)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fd6f438f2a90a1dda1106d2353469823945178cc20bb618e5c0eaf9b740b16c. 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/FR5R00905380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c8ba97f3a9896439765ee79420d2da9f9496e968adc1565b3513d080f77ae6f. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/FR5R00905381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd72939a20bd55273b80ca033877e9d539c5e13561ffc6cb53d33a354dd8d4f66. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/FR5R00905382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d681625543a227ac7b71292fe1adefda0fb6b473fe4691fbaac0efcfbfedb27. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/FR5R00905385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04ad612e366d8f888e6b671f6b852aed5af54683f9dd21bff8445e27c820454d. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/FR5R00912135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc650c834ee87af4ae578a5a86286821bc9a2b6240118a6e626ee86274990a6d. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FRV661700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x401ae4f7c2690b18a34bc20638771898d83eb8d5b799e7917656c5bd476ef3b4. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/FRV661700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef3849084549b07e4f95dd256224fc80699e66f6b63b5710a22df8db19d7f5d6. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/FRV661700006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fceaa8a95871ea134ea0bfff3160fd2467c741e0a724bc6f37e030351bfde03. 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/FRV661700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06da9aed7a28c0d0045ceb1074d7341a43d0780df5b004d3fd1aaa3643cc33dd. Chain 2 (Bitcoin): anchored in block 956809 (2026-07-20T11:53:07Z), 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/FRV661700012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03310e2815bdf5a8595efc54dcba82506a7456029446384d0a3af5b9146eea21. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T14:08:01Z), 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/FRV661700013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2e2929ec3d24c3367b013dedfc5b7ac349e557eab373655cf61b7723971242e. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/FR5R02213770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb51d9d5bbe987c836ac05cacea2ad272ef491e12ab1f2354c5e4a0e6d605a990. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/DGA092218465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x623e8b8c66b78b4b42b282bdda0ff8b5aef6ed8cc3a9910b040af8a468b9833f. 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/TCAFA2042795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x970536c460baa266bed364486cecccf517c4bd82df317054b1e2006c2bb853ce. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/TCAFA2042804.
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 0x1da3cb07598be22f55ecc2bd625536c71522711ae9efd34bae27ef3a8064d849. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/GBLJF0504056.