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 0x22466a8ef336af5f4cb13ae7baf2eae2f2ce0866735fbd34fca9bbb92ffde0d2. 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/252d5a1a-146e-461b-98e7-1f705eff2a85.json and https://artists.proofprofile.net/proofs/artist/252d5a1a-146e-461b-98e7-1f705eff2a85.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 0xadd644dbecb16ad0363ca56ef40326ee72d81fca0d5ef88808218f8552e29e5d. 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/MTA0V2200105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf08adc235020ef79741763cbe25ef60a8e3fc98daeb651a91527b644967ade93. 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/CH6542044420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78ff5997182e689ec2d06f20bf0764cef395acbc08a0bae69c1611b57230738c. 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/NLPJ74400318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0688262d19d424fa932a96be2bfacb2f48d0fe191f3f76ccc850d7fa3331eaea. 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/DEW871902628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fd06f059488441b20be709953ba9d6664aa15bfcd304f384a2e352b0f0a2d11. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USYLM1400088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67121c0680f38587319f978e1b19214c00fe68b629b98448bbc81f0be0017d8d. 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/USYLM1400089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6277693ebc4a587288d6cfd38eb416da7e8a0186c3af65b025bdee3f9f7ead62. 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/GBUR61200085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86cc7ad1abe11951e6c3a7f97a1583d5d34cb41627fa48d63aed055bb527afce. 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/GBUR61200086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62c51d1714b65607b78bd246d521d8c92ab510afee2cb732b9399dd65f38ee33. 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/GBUR61200087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd367c3dbd3600e6a67f04c41504e3fb8466d68d59d2e3ccdea8085dff6712846. 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/DEH741119829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x788473f1f44deb346464ffc4d79dabac5c8e35765bd84a7a308530d7fce186c9. 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/DEH741119830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b3b885472c63594f4a688bf51a06ae7c1414fa786e57d577227effa581f3a0f. 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/USYLM1000064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeab4d9876944d7d0cc52e14b5561cc11ebdd9286a308075994ec5a94ecb858d4. 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/USYLM1100026.
Shake It - Daniel Stefanik Berghain Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x763156c05234414d2b7fc59ac5c6e6aeef6529d27f3a11696feeb34f8dbdc714. 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/USYLM1000065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82e437fee9ecd38f995e880be47b0152053d44bafb6d68cc9d2b9a1b5232f804. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USYLM0800603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3e423b312c13d881b00eda437ba32e918cd48a0867b9de406575448a59a228c. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DEG931691765.