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 0x05bd5e7e695cc052d4e45cabc5c66cb75cddda856f5549821e2919c7c2b58f09. Chain 2 (Bitcoin): anchored in block 953641 (2026-06-14T13:54:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/39f3e062-929c-4980-bd9e-5fd099a8b042.json and https://artists.proofprofile.net/proofs/artist/39f3e062-929c-4980-bd9e-5fd099a8b042.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Best Friends Become Strangers - Feat. Ladii J
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 0xed942abe9e1446559cdb72850014ccfd6950d7e1a7253bf4303a841828915eea. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/USX9P0760608.
The Cypher Symphony, Pt. 1 (feat. Masta Ace, windchILL, J.a.I. Pera, Buddhakai, Provoke & Shawn Keys)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bb8104c8138764f491facd8915c84415d56bbbc75b00ddd5b61c3d714195b5a. 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/TCADN1820184.
Diabolical Plan (feat. windchILL, Dice, J-Cell, Yannone, AyoK & Diabolic)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5deb90b78112d0a56431994d0e11dd9b7bae600e5d86b6280e0b2f62b5047a68. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TCADN1820186.
Stand Behind the Pharoah (feat. Reef the Lost Cauze, Ty Banks, Bliz, J.a.I. Pera & windchILL)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f1209144be919810c792d97e0199e7ab85148d756ae2cdab593b60015b83c81. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TCADN1820213.