alt=|thumb|A painting by Vincent van Gogh depicting a caravan of nomadic Roma Nomads are communities without fixed habitation who regularly move to and from areas. Such groups include hunter-gatherer
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 0x2629dc5e047c62da7046c730ac01c51d7505441f3d5b5f8b88f8352bf84621cb. Chain 2 (Bitcoin): anchored in block 953714 (2026-06-15T00:43:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/813f099f-9412-46df-98de-0c21bd2bd771.json and https://artists.proofprofile.net/proofs/artist/813f099f-9412-46df-98de-0c21bd2bd771.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Comment te dire Adieu - French Kiss Remix
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 0x550b4dd4cca5ec733687d486c293bc76f31423be0e04130f6a8bb8c9f4828c21. 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/ITAD82000001.
House Relax, Vol. 6 (Deep and Chill Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x550b4dd4cca5ec733687d486c293bc76f31423be0e04130f6a8bb8c9f4828c21. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ITAD82000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63a51cbc1a2db632f7f3b213876b36f4049dc32df017798aeaa8cb387ce75ea3. 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/ITAD81800119.
Feeling Deep, Vol. 3 (Best of Vocal Deep House - Chillout Set)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc496e17ee586e4ddcc38327112c13e8deffee6a376f17ba9adeb83a49693f673. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/ITAD81700074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x550b4dd4cca5ec733687d486c293bc76f31423be0e04130f6a8bb8c9f4828c21. 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/ITAD82000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x550b4dd4cca5ec733687d486c293bc76f31423be0e04130f6a8bb8c9f4828c21. 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/ITAD82000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa9dbc7d938ed1fd311492b1d0b0e5c1c56b2e2fd809e94a719a24e1fb527eb7. 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/ITAD81800039.