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 0x7b53567c0d6e2410d2ca94f00c554e66e1fbd30398d64a17adc5042f3dd72fb4. 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/aec9a7b9-cc21-4fec-97df-b0612bb39a41.json and https://artists.proofprofile.net/proofs/artist/aec9a7b9-cc21-4fec-97df-b0612bb39a41.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 0xea8f33027e811098d03374574dc89467502d48f154c1cca4a1de461a8e1409a1. 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/DKADG2100431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa60e2e05c15b8e2b8e845f2034dba49b9a3cd4b8108f62de4c5116f8eff147c4. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:41:33Z), 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/DKADG2101789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7c284f4e6041ad23d024aaabdab48520876ec97cac1e945a65f16f9fcb429b8. 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/DKADG2200337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3823e24ed81b726eae027e4b3fbd42dc9e054b7dbcdbc76994f93126e770af9. 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/DKADG2200749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93f28e6a9ed43d454c2f74f52b1f6704c6302eb58ff1021b49991ebd5033b072. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/DKADG2201121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf802fd0da58535f7dd9d4cca7a2b611c8f7c07dcb5ed455f52b23aac99843e7. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DKADG2001085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4a3be1d9a054b16e5a7f7653fc0336a3ec440a132ae32a8fd57b262fffff9ef. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DKADG2001087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf802fd0da58535f7dd9d4cca7a2b611c8f7c07dcb5ed455f52b23aac99843e7. 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/DKADG2001085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4a3be1d9a054b16e5a7f7653fc0336a3ec440a132ae32a8fd57b262fffff9ef. 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/DKADG2001087.
Koka Kola (Papito X Trey & Zay X Alasow)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e328814bc5108f836d60ad092156ab80e1b86fbd9266bd754af6b64a2a98829. 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/DKUM72100381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60e5efeed90cfea01370a8a8e84d7deea3ae1364b02f3dfd955d8182c5ddde20. 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/DKADG2200126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49e6001d153316654522c2d88e08c56223b5762ad4c94f8b11be2f7c1be44bdb. 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/DKADG2000933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12d81b0d29f89f60361fb39e9161bb4254d55fca0af4c5e21afb9d7612c65464. 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/DKF3Z2200201.