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 0x68ae9b61167c7700d61d838faa2f60cfc54c865ab3359147cb1254cdf4ca752f. Chain 2 (Bitcoin): anchored in block 953645 (2026-06-14T14:31:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3f69d6fa-c406-4002-a166-41c8a9a6befb.json and https://artists.proofprofile.net/proofs/artist/3f69d6fa-c406-4002-a166-41c8a9a6befb.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Till You Get There - DJ Spen & Sean McCabe Unreleased Vocal Mix
Quantize Miami Sampler 2020 - Compiled And Mixed By DJ Spen (The Edits)
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 0x179ff90257ab4913c693386cefa7b309daa5717d44eb162c73afaaf2fa212307. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKF4C1601883 — a six-check JSON result.
Change The World - Jihad Muhammad Vox Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eb35e03cdb36a70bfe3f8c9c946bdf83ebc91003e18d9cd448415e3c794e504. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA670601657 — a six-check JSON result.
Beautiful Life - Bang The Drum Vocal Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9d85b0f89a9b451765861787d9aa0f30d2368b006dada5ecd60ab6587513812. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA672200310 — a six-check JSON result.
Hard To Love - Jihad Muhammad Bang The Drum Vocal Retouch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x550c77682cc863a66eff853baef90b1d77ae58add1607b2d5a3e5696eea73d5e. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKF4C1602629 — a six-check JSON result.