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 0xf5901b7da178c9418ad7ce5a61815eb6904423665d0023c765a8384adf7c1a11. 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/323d6a47-e5ca-4cdf-88c1-26ebd0300425.json and https://artists.proofprofile.net/proofs/artist/323d6a47-e5ca-4cdf-88c1-26ebd0300425.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 0x23241b684914eddb3ab7aa2acd441a6a48e9d2c2efa87bbcbdf55f1843f3a00e. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/GBFXN2004002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ad753ec382e834cc3e827e1e6aa9b8f31b65954fe3f10b1ac850e0084d0711. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:07:32Z), 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/GBFXN2004003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ad8a699284cd5fe6dd374536cd045e97f1e4bc67e6ccbe62e5e79df03da96f3. 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/GBFXN2004004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0123d6fa7b1e7e0ae163a993c012814209498ed6dd06357005c45ecd5021ef2e. 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/US4GE2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bdd91d51d9b34056edc9f0a903a762de40c89f9100599731182d9fa4882b5f1. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T00:36:22Z), 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/US4GE2400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30de6d1a1197bb7e3a31981fe4da1dacc4e06705261886d4023ed7a9375cd754. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/US4GE2400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c07fda32001a59f64966689a1fed43194492b415367459d4511e301bb5ef4ea. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/US4GE2400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fd1902aadc424a469c03f9fbb968980ab8978fc41cd787dba3523aee3568a57. 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/US4GE2400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fba63d278f252ef691cce1327e0db4568c29072f12836b077da195b92e786d9. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/US4GE2400014.
chaperone - Peach's 2Good 2Be Remix Extended Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2397e44fed82ec521efc2e069d9db46afa87bffb59a85a1199a57c726893fdc. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/US4GE2500030.
céilí (Justin Strauss en La Piscina Remix)