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 0x5f8fed79bb2e589a7eeb2b30df0c75bcc256c116cb6f4b18058093db2da0ab05. Chain 2 (Bitcoin): anchored in block 953636 (2026-06-14T13:03:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3798a181-a8b1-4e1f-8b15-5f2d95d131a8.json and https://artists.proofprofile.net/proofs/artist/3798a181-a8b1-4e1f-8b15-5f2d95d131a8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
This Little Light Of Mine (feat. The Game)
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 0xa761bab34ea6789f0e4b052ec2cb46efc244f14c5cec902ef3abf9eb063eff28. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZS7J2333371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5206dd22b216bf9b330d87a91ebd1ec312027f65d20f8cedb2819993409c4e27. 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/QZS7J2365722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6496b7f8f5a64a3d5cbf70dd62d55fe31ab559077d3dac77a9c6b152886c6e9d. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZHN72531533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb90e7900fd4ffc98cd581a19ee847cc522cc9a5ed2980b905bba2ca6b25354e4. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZHN72531534.
Burn Bridges (feat. Quincey White, T.F & Flee Lord)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fea883ade0c0c49113dd51a5c29909645d0e3c957d388bbe90d4826b82124c4. 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/QM4TW2357530.
Another Play (feat. Freddie Gibbs & Quincey White)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3759c7b3d686063b41b72af00562ce3d0372a3f7536e13882b6dcbeed445a73d. 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/USUYG1361438.