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 0xa284114bb692451f90c2ee9b50c44a47092c478cba3ee177a213870fda29a374. Chain 2 (Bitcoin): anchored in block 953598 (2026-06-14T06:40:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0c8a2d28-54f4-4555-a8e0-080491ee0d5b.json and https://artists.proofprofile.net/proofs/artist/0c8a2d28-54f4-4555-a8e0-080491ee0d5b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
God on the Dance Floor (feat. Alejo, Bass Coma) - Yheti 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 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 0x1bc791a9d4d693a04804cb78e73076b213a402b880a528dfcb239e865c643bdc. 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/USLZJ1412912.
Genesis - ThazDope Records Compilation, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10fbbf7453bbcdad4111d2e475aa5170f1f688c0131c297697ca1a711ddda26f. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/USLZJ1563681.
Purpose (feat. Yheti, Hecka & Mt Analogue)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01a27b6352dc902612e7d57f0b67a136dc7a9a2f900a437d787b6d62f75dc060. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USLZJ1563685.
Heterodox - ThazDope Records Compilation Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf8ec77ca73237396bd7c1ce6ecbe3562e7dbcdd56e0ce3c8b3788a8b6bae8a6. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZS1Z1649642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c15c4c0d1766aefa5f16e500448f0cb65e889f0ba2809412749b9f8939c019e. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QZS1Z1649644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e4c06bb4305db46f31198340ddc9703afde27f200a8e1b1ada47cc4cad3fb2a. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QZS1Z1649645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f1435fc511ba5b20899181dd063368614328238df5520d8d019e79f342fcd19. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QZS1Z1649646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1fe79bdcd379b684959d452ac200f5642e651056af0c78b4a19f809d9cfe446. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZS1Z1649647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c6b1dff95c882a5930ab391abd2d059e59b11f2ba4e38667eed825eeb77d8ad. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/QZS1Z1649648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a17f9969b9b2c05a47dd13a4fc4fa5ada93e0b8675b36b177547a7b3b6acb5f. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/QZS1Z1649656.
Hindsight (D.O.G.E. Foreshadow from 2021)