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 0x1024eae196731308e0436c9d537559618b327079d6a06bae48cc8e314a82371b. 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/7d836f31-d6cb-41f5-931d-7f54239f294e.json and https://artists.proofprofile.net/proofs/artist/7d836f31-d6cb-41f5-931d-7f54239f294e.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 0x9a8733047dbb4bbcb235f0bc46f9099a643603a972c5f9f8dea339262cc682ed. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBKQU2064451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a6f647d5a57b7201a19bb17efa640d7805d541133472620efab59befde7f6e7. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/US9C21200204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8216d4ff15cf822a21d279ec67a3dcd653029fec9b195368f850037c31ffe5b6. 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/DEU672400582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbec44d2a451ecd42532efb358c589033f8d25638ad772731ec806d1f3b798820. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/DEU672400428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ae2fb006a083b090318693644bf257862ba9fc37b427e577d57827a6e2ea68. 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/DEU672400427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c3439bbca989c883e76d9e8e59514078a0ebf445ee23406b99e694df72c70b4. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKQU2436377.
Take My Hand (Remixes) - Inês Duarte Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33e6e2e7eb221f1ab6d8d17d99bae7c82f4320c7fcdc58dd951dcd877c3b0f2f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKQU2436378.
Take My Hand (Remixes) - NOAM (NYC) Famous Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x692a2ba4d5807eae9f6215b62caba8811e3100163fc6de7b22d676b769020e09. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKQU2436379.
Take My Hand (Remixes) - NOAM (NYC) Famous Radio Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x189e49f2fa362bebc3ac09353c7b78737b5972ada79bcd17e0df48329ec26a89. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKQU2436380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda3292563c0f683d4ca02384801d7e089088a0369e7830cc68ff32062c2f944a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBLV62305319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6399f8e226dc39e53b1719ed754d85277cfc95de4accb8b762237fa52c31615. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBLV62305320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x285446c5aa0d5f0f706fa28e91d01d964f170560c0b75cb18fe68a1f4ca128de. 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/CARE92301557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c81fcac402221a534bcd1ffaf382f828d732ab6efb48234805852d91dd610a7. 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/DEH742310429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ceaf7e8479f23d155188609111a12b4d48706f0846e362e532179be287c34d6. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKQU2312796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x392c02464a395265b12a6f97b4b696e2859db73373f893e4b1e711be66197423. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKQU2312797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77bae382a3c19a203855d67e17cb58af5b9bd7ccf704ed6ecbfe667301807598. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKQU2312798.
Blade Runner - Redward & Eddy Cabrera Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7581e22aa754c6c0435fe0434a3bdda86a0b0d356d8432182a2f0d883cc5bd3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKQU2312799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb53668d40e4dc1b944bd9a8536b748a204e3c7a732dc384f59c01edbd64dbd2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKQU2309675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafd80d94d460f2b59ea15edeb69572932096fcab4e61601ffabce27676697381. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKQU2309676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafa1307fade2e739bc18bc52bc89dc5572194196349dc4a6f5b5224a8f168fc7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKQU2309677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cee3f85c8afd5a97136c4c76712b0bb8516f2ec13cb28937b6b7b411024724e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DERN42200210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7341b07df4635fbf15e79f853bdea974e8b32786e82985c0317be1f14feef5ea. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKQU2208868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0ebe06c76ab0c81cae6344d0aebe1934231986a595d7b23e011ad500dcf23d7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKQU2208869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a66b2cd4c63a489113780c136bbabef6d3445e16d98a725ded4ac7ec2e5dcaf. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKQU2208870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8156987058575e18827af9c15832a077001fe209aa4701124444812889ccf46e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US9C22200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01b6278687863cb739e9c732ee13ef813f7634576cf75f60bf27d524ab0b163f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/CARE92101377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x570ffa5ba9ab1097bbcf5daeca878661ba15460673e413b219a9f46f7f353a88. 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/CARE92101378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfc8cb38504117e4cfe0cb388eb3ec2416887d591ea358796d9c10a0030fb80d. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/CARE92101380.
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 0x2a0fad9922c451dd63b92940a7372c1f0cdcf86b272bb09025785042b3920a9f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKQU2021455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda297a115f609577aa687fd6fcd2cdb1277ace517ae17829272353e3a215c8de. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKQU2021456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13dabaa56c1b8d3e397ecdf1fc0856a4a0e316547c81de023fadfc17e989650d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKQU2021457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0da4c295065f1ffa4360695ab170fffc94c65e57928a005e1be7186288f5e980. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKQU2021458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7044a8974190003975a9e04cfd3c4146c634d7cb27087844cf2c6b921afd3757. 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/US83Z1918611.
Say You'll - BiG AL, Moe Turk and Rishi K. Groove Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x404dbef386628716680d26f83ea47c7c383e502f620620d3ab8d8186aa32a0a9. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US83Z1639538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29f37eecc4d47539b0d93038f093d10cac2ef874efd7d06f33f691c9c682c53e. 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/US83Z1338358.
BEY Roots - Anatolian Sessions Remix - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00d21102d5b93977f6fb5ccc95b58d0d8976575376ee713cf9b567267568bbb4. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/US83Z2101771.