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 0x728ce93dc20774a6144c611750e36a16427087144b6a65d3b0abb07c6aa929b2. 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/6bf1bcbe-3c7f-4b43-8618-83f71c987c8d.json and https://artists.proofprofile.net/proofs/artist/6bf1bcbe-3c7f-4b43-8618-83f71c987c8d.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 0x6e8cacfad487a993281ebf31ff63750babd6df91c07e60d1a3734c3e1c3d11cf. 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/QZHNC1920202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2baa02b38e43ab6c98dbf4987ea361aa8cd90500fce8caf7931b5482af8ed286. 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/GB2DZ1700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc529b4f6b8a039bbc05de0008a65384ddf4482d03ea64ebc6c85dd1892e2e50b. 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/GB2DZ1700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cc217b396a91b4e9a38b4112bdd3659cb97ed6f3e6ec552948fa13cd7567b40. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:44:28Z), 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/GB2DZ1700006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x958d70c2646e15f0d49c7754f19fb09510eb607f1d26c0d8238b351a9763e7f5. 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/GB2DZ1700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd99d30d9fda9c68a425276675314ea6250627054031a67e3d42d727ca4aae27f. 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/FR6V82166467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad9fc1fc0b1021fc609c5c06c54ba3cf2da0045ac5364c28fb6e233c6ff37d56. 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/GB2DZ1700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3185af7ee291320c4ea6271d30091d08f51e47d17bb61021b043c3b5de2ecc1d. 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/GB2DZ1700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37d25fe91ae6bd2098dd5267584a75125fb206e6b9e782ae9241ace1d72e8351. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/GB2DZ1700012.
Thank Me (JERSEY CLUB MIX for the 'Museum Of Modern Music')
ON YOU (JERSEY CLUB MIX for the 'Museum Of Modern Music')
LOYAL (JERSEY CLUB MIX for the Museum Of Modern Music)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22797d38b01cf8e37a4bb925c9e0830b3ac5e61f148a599721869a4aa3c377e7. 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/USL4R2222951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47f00727923a60ce473ab7d20161ad8d2b3c0221aa8df49fee98506fbb7572e8. 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/QZMEP2252554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcd1b39b0fa9648006e410e6eb87f3f776d399c53b71832acdb7bb6b020a2b5c. 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/QZTAT2199893.
Swamp Life Anthem (DJ Jayhood Jersey Club Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8810f7dc831188cfd6af8ee0ebf9910ef2b82048679e1f62caf9ad0aa04c5faf. 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/USYBL2001184.
Dick (feat. Doja Cat) - DJ Jayhood [Jersey Club Mix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x556a76a1c6c02657024334d7767554d8e5172747a937178fc7d150dce38943cf. 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/USRC12101675.