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 0x021bae91e098247e3db62211675445300aefb9a492066a7de71a220a6899ac1c. 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/dc2c814c-8e88-4a05-b562-a7349a5bca9c.json and https://artists.proofprofile.net/proofs/artist/dc2c814c-8e88-4a05-b562-a7349a5bca9c.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 0xa18a62557b3be1e5ad1345e8f6e76744cf53b691b2a4049d35c9529f0d0bc741. 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/DEE862002581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc30546719f73ffcc51cc71b8dcb8da0fa5f5cd7fc9ade19eafed3eb824a0d79. 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/DEE862002582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe181a403cf064799f9ddf639d6778eb53235f43349d81df20b957be0fb7f73e8. 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/DEE862002583.
Like A Prayer (feat. Charla K) - Extended Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd454cab3f6a2bc89284ec491271178ef3b6eb26abacde5a126fca315a655e9e5. 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/ITV952000055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x288f80c845a44183295f79097a89eb432c5a9814e1b29726c15de4bbb5ab3146. 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/DEE862000078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a7abfbddebf2d55ff9ac489005282466de8e9faf672ddb6b279262ba299b9df. 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/DEE862002584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x246dbfbe83024c48e57a73035a713f374d3cf14e390a2fe07029783b6091ceca. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEE862002589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65c0e3278700bfa489da40c5bc3d75095bf960ebfb2b27513faea549ab12b4e8. 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/DEE862002590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b9c9011fcafa3ae0786aed3f958ec56c8a6836f867d3c8ca85c5efaa464f98e. 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/DEPI82307156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8a57d533d245246178d75f67320112aad85b4f287e125e85775d930030289ec. 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/DEPI82436815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbad618bfcb52742a58e3e75694745bd45f72f9bd095d4bcc99853fdb6e1235fd. 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/DEPI82211176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb82048c529150f005312774d5cb0eb15cb3bc0507db97ad34d060f2cd6e6366. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/DEPI82206192.
Can't Make up Your Mind (Sunlike Brothers Remix)
Can't Make up Your Mind - Sunlike Brothers Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe28cc3300b1576e67f4d37fa2b2b4611553d731c9ea15a898710539623cdb53c. 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/DEPI82202534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb5ac24bb0336ba051385183d35acc5b105deadfb4f8e34af412524cc4b3ed24. 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/DEPI82202162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2c6468c59291b823d2ceeab913fbfb61059ebd3813978a6b45fab9740dcbbd2. 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/FRX872138196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc616dcd9d5ead35a8181954a8d88a4645a1c453affd91b8ab099f30601b5e96c. 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/DEMA61902480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4e927ab16b7bfdf18a510e02379f64f6f934d313285d387eb8c55dccd8ccc32. 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/DEMA61800740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9970149d3cde6fb8c64cc618ce5126b2878f8e7e8f64aea7e5e17723844371dd. 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/DEE862000357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd444e2a72b403d781bd7ae251a5acc852f20ff16d863b818718cd1aed9973d86. 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/ITV952000054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55d2ce81425c01e9e564c2b844f0092ee4d64c6fcac90d4f6f485fab25d6a1c8. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T16:32:00Z), 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/DEMA61900650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1602cb857b62abf4221c1c28d0b8e33f93f094d7ff09823c673ebde6e515081b. 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/DEE862000255.