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 0x6865f76ae793241de2ff7c81968bb104dca8aec794a5a97868d5aa417a2b898c. 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/8736a304-64ae-43c2-a711-cf60cb7979df.json and https://artists.proofprofile.net/proofs/artist/8736a304-64ae-43c2-a711-cf60cb7979df.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 0x484b8867ebe322f9561f1e02e5e060889c715d7fa22bc274453bcf37fa0a25b7. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/FR59Y1600043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70454dbdc657fe2c443206c85827aab370373f31bb4145472bda4d949f5219a0. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T01:44:34Z), 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/FR59Y1600044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x529fd6d7570742af351304d4a872620cfe8360038e2b63dc06ca4b07736f94b8. 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/FR59Y1600039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95b0fcd0b46129ecde2ebe89685b505d29d3f72097280a86ba4ef708843c48d1. 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/FR59Y1810901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdefc11b1d4d3907e526973ba784fbfbc77deab6ad72bae7f822e85f9b4e4b1d5. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:07:59Z), 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/FR59Y1810904.
Take Me Home, Pt. 2 (Raoul Vignal Remake)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58c672292da013b95e8e65c58d924e9f5ef793c434f4d3db3959d9ab69939b40. Chain 2 (Bitcoin): anchored in block 957726 (2026-07-12T16:04:28Z), 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/FR59Y2111802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64ce91f799bc06630b901e936e7375303911aac18204c13c7a21aea5cb46ecc2. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/FR59Y2111805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47f742ce6d663fd2229e89e8bdd44d300a09f53a28a3f6da792609752b423b0c. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/FR59Y2111807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e018d86632ab4fd9432752d48b7181b11403d6252679909ed6ce86426156ec1. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:25:39Z), 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/FR59Y2111809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa12ec19ee7c4729ec811f46bfd9d67c39610c1e8b697d548ee6c0b45920ee84a. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:41:17Z), 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/FR59Y2111811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x734620bf2d68037fe5bbc601e1a4803eaeba1329e79c2ee14ea24829fd2cfbca. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/FR59Y2111804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5cf334dc6cf8d28bdbe682f3459b87c9b054903ccd0044b5a4c1683b5247678. 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/FR59Y2111808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc88804182523575cd3f9042ec8f19a72132614c34d3caa523ad3c86c9569dc1. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:47:16Z), 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/FR59Y2413202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f0457b0357f82f3b7ffd3481493ae18e8c75a0d4a0ea40c597e5ba8a9e338ad. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/FR59Y2413203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe1046ccd47de709ca84c4758312e7d7d2fcb8dcc843dc1b2a376e3e0e17791d. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/FR59Y2413204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72fb7daff12cfa864ba39aea275396c462ca271df0f3cd8416201641385fd1cb. 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/FR59Y2413205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48137a58f0c12811e379e5c84d5b0b6e135fcc892f110f7950faacfc11ab6703. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/FR59Y2413206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x766b14fd6d8b8a33ba31ef2efd2526a2e2d988bfc1bc86d667c4692ed6301cc8. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/FR59Y2413207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c04d5735d02722d2b3e503458c4343c6f1d816ad0be18e902e3808073473133. 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/FR59Y2413212.