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 0xcb25c634faa67170f834398476c4bee6edb89c8b775936a584ac8320df70eccb. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a8c29f62-fc71-43aa-9eae-7af42c4e7c44.json and https://artists.proofprofile.net/proofs/artist/a8c29f62-fc71-43aa-9eae-7af42c4e7c44.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa73b395a2b148ddbbdc9ecc780321caf677b3a3cf1435ef474e52f8b47b950df. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:34:02Z), 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/USUYG1495722.
SBD$MTHHL (feat. MJPAID, Fordio, Prince Jefe, $weet-T, Project money, J1hunnit & Glockboyz Teejaee)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18f1e5f0127ecf67e136b46630cb25670622deab8b33c976d03c113b305fee51. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUYG1511726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a20c0b3eb720d68e48eec3597420774e32b9bf3a0fc94eed1c695c7629a7336. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWV2559981.
Yakuza (feat. Fordio, J1hunnit, MJPAID, Prince Jefe & ScrumbleMan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbf19194191c06d7b366a1b634ba6715383dca05f5d8a57e677e939662cfe9e7. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUYG1509886.
D$M Cypher 2 (feat. $camaurion, JuSleaze, MJPAID, ScrumbleMan, Trdee, Fordio, J3, StanWill & Donnie Bands)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf832818a75ec32e066a40855637c630f4950a22469781a76416f10a88514186. 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/USUYG1448604.
Song 7 (feat. MJPAID, Fordio, Trdee, J1hunnit, ScrumbleMan & Prince Jefe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82f1080d9c64a0361cde4fb9e6cf668af4649bf175e5daa4ea780a12bc48c8b1. 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/USUYG1508473.