1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xd4fb92ecf0ef956e0fa1a53fd2a16752c5e68aa4b98e578efc860c3ee76d43f6. 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/613e1057-0eae-461c-9a09-782361350101.json and https://artists.proofprofile.net/proofs/artist/613e1057-0eae-461c-9a09-782361350101.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 → block OTSBitcoinBlock must exist at that height 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 0x015c8a417b7e992e0e9a6a6ecbff570fcdfb2d45a9be19877b09b41b5fb097ce. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/FR10S1458336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dadd6516bd250765c91aa5104d838877cd08f4a8aa110cbbd2060bc777f43ee. Chain 2 (Bitcoin): anchored in block 957835 (2026-07-13T09:48:24Z), 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/FR10S1458338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83a8d19322bef2439a7f9ccb5a10d3a2ce6c56be4bc1f1ee513ed462b1d6982f. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FR10S1458341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89165dc9de4c7ca96c546cfb9adece57bcd461bbff48b1c00233ceb798dee116. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/FR10S1422561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa928e204389b56225ceb4216f9ba094261f9e7a6c94bd5b04b4bad85c5f01ef5. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/FR10S1422562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe2fd8bb5419e017bb6bd5ab538e3d7b186823e35ed953431343a2aa3b69238. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/FR10S1422564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7df3cf543616522dba222133677f8ab73011695088b37093a4fa8893f7d686c0. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/FR10S1458399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10292400316085c4cff280b40d711a33cddb08a7eeff49bfe070e5b149fd6f55. 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/FR10S1458400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa6239f8e1501e460101cb5cdcaa604d53fc53331e456f6b8e94b3c32462ba79. 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/FR10S1458402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b088ec5736533588729e2cb810cdd6ee210bfe9a204613caed9c9ae76c33584. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:02:56Z), 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/FR10S1458403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa71eb2d91910934f9dc4a5c06e041ddde2b66764b3a89f78acafb2c06801634. 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/FR10S1458868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6b2a2f4d6f499bdc32ae5f65e9eb4648eee0f035aae014d84ad79079684323f. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/FR2X41443238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cf5940e7c35d7527752c1df2f5826bf7d866f775e15f619df2a30af6762da2c. 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/FR2X41443240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x075c73cd35c556d09874db4c0d930d274ca0902ca3408a6c40cf751907b06835. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/FRX201522842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ff42b7a9d6a05d707e934a253ee797520d7d80f3f8eb1ca54d08de7678c5d7d. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/FRX201522847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbf42686b5528e81c49d1e7250de02c23e0418ffa5e4008765640e83d0c44fe7. 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/FRX871530146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fcfd81e361b6249d60d3dd7c8dfe6bccab6fa358ee24a9b26c5599215ae094c. 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/FRX871530147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56211cecebc28a10a5588e00abe53eada1ac8498c81ff5786be95dd4b8422f0e. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FRX871530148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c971e47ed482905c7370a698538d9d4741069d95970f4517921026e4dbfafb4. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:56:33Z), 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/FRX871530150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cda9e8628e7e5cc24d00b6b3e5ddfe48419eea6076d01caaf726c9a80021866. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FRX871530151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8d8f0368e4b0dd8504d304f65c502a89d7a048bf36acb9cac3346adcd9c3c2d. 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/FRX871530154.