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 0x45096a4eebf4327eba210581e935f906c0e142cb7d885a21525185665bbb0d22. 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/e9d61893-0a6b-4f14-b0b7-d03dd41fa656.json and https://artists.proofprofile.net/proofs/artist/e9d61893-0a6b-4f14-b0b7-d03dd41fa656.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Iqolo Lam (feat. Mellow & Sleazy, SjavasDaDeejay, TitoM, LK Deepstix)
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 0x9f3ea9362df4736066cd33315057a78a02bab8bd668458c10d604bbb983534b0. 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/ZA56E2303352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98200fe2c6f4919d3bb6d7318b230fb67dc24300dbf293d1d70b33a795299283. 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/QM4TW2474693.
Mvuleleni (feat. TmanXpress & LK Deepstix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf33abd8b4b3704e779c0a527cc03f9b29dc9dd1be4fb6643452c62c0ab0e6662. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/ZBN532300007.
Woza (feat. LK Deepstix, 2woshort & Stompiiey)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27ae8cde0ce8f1d71d8afc860405bf50e1086064d4eb4d8d93440ed4960bdb8f. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/ZB5DZ2300005.
Midnight Prayer (feat. Key note & LK Deepstix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f7cb56ec9e5db937c91886431cbd4497651fbd1476becc37e2c498cd5903f1f. 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/ZB1OS2300177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d6f7d1405e8e84db18a84b38082044daa0b30105b7921a0e94f655b5cb590cb. 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/ZB02I2400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe12b6c813f86ae3f8f4a92ca222342d1fbd1dcf42fda03c80e61a03880b9414d. Chain 2 (Bitcoin): anchored in block 958042 (2026-07-14T18:24:07Z), 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/USA2P2442250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc66717d53e43373ed67adc216ec37772a0ffef716d9c3f9f020d3f2ef4a186a1. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/ZALN62100017.
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