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 0x7de35986b92373bad3fdc5205f320de046da0231886fa5693f0aad8ab20f71bc. 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/bd5818a1-31f5-492f-be99-3b12eb6dd462.json and https://artists.proofprofile.net/proofs/artist/bd5818a1-31f5-492f-be99-3b12eb6dd462.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Il n'y a jamais de hasard - Live 95 (Live / 1995)
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 0x62ae8576981f09428d46b1c99bc7381688045eb84cf2c0b2dd1fe463d5c21eae. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/FRZ027600480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x786d57ebf0615abefc62443fa753bf475144845c32e0c0e3e0bc97ab503187db. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/FRZ027700750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd92dd1b34b11c9208ed6657acb275889655186c474379b882359acf4a9a5cbe. 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/FRZ027901470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffeb9a0d05405ddfc4d80047ea9aff3d8d72026cfe749d5e07635f73dcd12f34. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/FRZ027600310.
Heritage - Berlin Des Années 20 - (1978)
Tout vient à point / Il n'y a rien à comprendre
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1162e860fd21dab08d3dc53c882c174f26a0b3e661983304c714904bae9521f. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/FRZ057701340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98f8bb5148b4fbe8ceebba8d2a5e97c75c28abce15ba7b55360047d82c2d7ea2. 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/FRZ087700319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc61ab300bcfa7f9283307d8c8a97745e1aa96ea07ee9d86b0887f44d4ca055ab. 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/FRUM72100543.