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 0xe553c353fb8e58d8f05a93d541b0144b58ce41630920c4f88510d52622347168. Chain 2 (Bitcoin): anchored in block 953819 (2026-06-15T18:31:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fdb1b050-ca37-4978-b5bc-a1f1d3105b04.json and https://artists.proofprofile.net/proofs/artist/fdb1b050-ca37-4978-b5bc-a1f1d3105b04.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 0x7490669c1864945437c85d9b6d9035e43790f8cbbc449158c3445a27457b5cfa. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:28:13Z), 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/QZES51868811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc78f0af9b579d207fd9d0436d69ab9c3d26f5f342b4ac88cd3b73adf260eb82b. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:19:21Z), 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/QZDA61970924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x613afee3d1705f30c78fabb041f28fb6c7571c5b57c10651cd99612af8c1e661. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FR9W12101219.
Je vous emmerde et je rentre à ma maison
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fa20ba5d551bc720d8a4fb0148c246e8651d12afe9c99c5428286d6ca49dac1. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/FR9W12101217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ba28526b29fe1577f144dbbc50d441fe4b0657ff1b16355f8016678652a2901. 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/FR19X2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x856f3844bfbb00952657331dc80d27baa03fffb2a820981e499051036d3dbfb8. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/FR19X2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02f2197908f4a174b3d4bef7298ee888932ea229d8a6ab68aaa28c5c4809b48c. 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/FR19X2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe28c49ecf71dc36b456151fdd6503737580fd8a35145b4d0c2b418cbd43ba838. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/FR19X2300008.