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 0x0040a543e63c47448c6239fc1d403448c561db0e88e126dc9e4e40913d16014e. 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/53ac2bd1-97d7-4cb5-aac5-11b816f5d497.json and https://artists.proofprofile.net/proofs/artist/53ac2bd1-97d7-4cb5-aac5-11b816f5d497.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Showing Out (Get Fresh At The Weekend) [7" Version]
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 0xb79c992cc987a083d8e1ce25ec1762e055da35d3f07c70d85bb8d30b5f411f9b. 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/GB0408602510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bb66cc21836b9a2415acaf49e211a57d2c80329a6d7cda71711963eb8b62ac1. 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/GBAYE8700095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15fafd224a5e7ddc7198442c89e57e657d73e65b25e247efe720cebae0ecaf5b. 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/GBAYE8700104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52472c1e1e4fc0dc5e7b1b2243bfd51418f675466ab8ba8306bf447dd43fada9. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T10:19:37Z), 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/GBAYE8700105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x826c01b1fa645e36f7973b0307ca9b14d2a83ff1c27105ede9fef564b502b473. 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/GBAYE8700242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f863a5294a9381ec4f3a489b60161404dddc42087612d4e89576dcade36e54e. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/GBAYE8800082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80642ca08ff58ff4df5790298e6b4a6f95924a325616676e4c1776134abdfc7b. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/GBAYE8800078.
That's The Way It Is: The Best of Mel & Kim
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf83660d363ed40683f68d1d7110d04ddd094a0d4e0a527acfe097b460eca8272. 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/GBAYE9100062.
I'm The One Who Really Loves You - C&C Kick 'N' Live Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b785cc17b4778cfa97d4c0a2f85de02ba44efecce29dfbbb1eb7df73419a177. Chain 2 (Bitcoin): anchored in block 957624 (2026-07-11T23:13:54Z), 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/GBAYE8700239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8e893460ae930621ecdee33dfbe41406e492c1a6f44f45b0a71270a391ec627. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T19:09:47Z), 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/GBAYE9400351.
That's The Way It Is - The Best Of Mel & Kim
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85518b88b1e39f51c079b4bced3522b55b0fb0b9b8cc40a8bb91fe1add728812. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:40:47Z), 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/GBBLY1903503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bb66cc21836b9a2415acaf49e211a57d2c80329a6d7cda71711963eb8b62ac1. 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/GBAYE8700095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41f2283fff0ee239c359fca9f9382b4b98dbf0462830a4d580d7a498bfb332e5. 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/GBAAA8700049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x127d354776ab33a813015e51c0b4cfc764f53ca979edb90247c586ed1b277005. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBAYE8700112.
Showing Out (Get Fresh At the Weekend) - Extended Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x986193e255c04da9de2e2d8cc3130469be01a82e8592bd27b511be7b26d64516. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/GBAYE8600071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0007848e9d28ee1bce218d509f42240745feb67cf6fd62381d38d1105df43a8c. 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/GBAYE1000944.
Showing Out (Get Fresh At the Weekend) [7''Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x845614eac917e1a3e6fb88d80eb71a6bbcc0b4f1d93ca8be6e2a54ae0a8ad9c2. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/GBAYE8600070.
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