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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa772a39345a744177cd808e9d413fbc7e3654657596970cdcd736019607ffc4f. 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/b784a6dc-559a-4143-8788-9b4f2cbc5096.json and https://artists.proofprofile.net/proofs/artist/b784a6dc-559a-4143-8788-9b4f2cbc5096.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa45905a5bb56ea710afed36c44e8d0c3bf19180faa33518db6cd5736a47baa10. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/ITI020000156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1fc24efc03c7958a9433df286295abfc0d9309e2028fd31b103111c997dca54. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ITI029800428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5441975a111ca423e4547a1a697fd76eb1609ff52bea13051bca9fd8d74fef6. 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/ITI021200110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x095ebc22e9c37abed5b0bab606ee896985246a47e7924ee56234d9ecd88dd17b. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ITI021500382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceb63ce8581a2832c9a038e7dfbe846e8883d92d35d095a49caecb308fd86981. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/ITI021500384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fd572fb5b8b72dc3634167822d795ab4590bc201157d9d6089faa68c4cd15fe. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:21:55Z), 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/ITI021500385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0950cd33463f5e6c51992cc1eaf98eb72197a9e6ae2df32d03d45c25a0489aeb. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/ITI021500386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc23b102273d24d498c7510001b46a565df71000c8776da1ca32dc57504b68e33. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/ITI021500387.
Keep Playing with Me Baby - Digital Bonus Track
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d03722425344842fca31111fd1b73d2f82a15391d7bfabde2b0e195c6b13d5. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-22T02:04:00Z), 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/ITI021500388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb6cabd90f471e3ca59abbb4b3969c44301b95f300123d69170d4f62f242f57. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ITI021500391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9aaac6c1752bc23d46c989cb88092a643be68fc45e4bb1f32c34e4fd9366659. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/ITI021700053.
LTJ Xperience Presents All These Dirty Grooves (Irma 30th Anniversary Celebration)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d2fbe555cbb644fab9c3eb68f6c8138fde95c69b2336535db5c56dcaa716c0c. 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/ITI021800631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x739c8a497480f93e093ed8b8126bfd1c7934899e63c952fb45145f500bf5e111. 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/ITI021800637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1e9684b98559ea90e5a723db3274fcbdb6aef49ec4b3481767fc110277f0fa4. 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/ITI021800638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e175c3ef06caf9c96361c2d72b27fd82244d4039b174a697bf3fa07785d83f0. 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/ITI021800636.
LTJ Xperience Presents Hidden and Forgotten Remixes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0f49209ce8b9d8050c94c239ee24ec8b1c47680894381654835fa4b5e0afa35. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/ITI021900133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73384ad9e3f5bc22237b5b5a1108f0989617b51817f23f6537e1b4b749ba5ebf. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/ITI021900134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3574e642e1e9d029e24c2c1b713b21fa57dfd65611d18c623620acb1b29a889. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/ITI021900137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x607babf8be18de957e3ff3dc05d89acea2298a67f3f78f665b4285a5dc051c01. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/ITI022000354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4553561e306b06da8c789a9e6cfc904f38bea9f740360bcf2b8e6ca42cf1a2a7. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ITI022100193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe206f834f2dbbb90acfdcac5b64af0dabc91839b0fa919bda2543813872fc893. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/ITI022100522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc089a14a6c787667a170230acb918900e1c101b14b643d2b3c8bc27add46821a. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/ITI022100523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37c6508a618d408fa6a40ce31d26f58482b3e2698cf8fb399ca94980d54441c4. 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/ITI022200409.
Best Life (Frank Situation & BRS remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc27dbe382b6473cb47beedb3fcb278d0f69dadb6d054165e7c06f092d0c2881a. Chain 2 (Bitcoin): anchored in block 958130 (2026-07-15T08:37:45Z), 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/ITI022400482.