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 0x61efe8ab15035352c1bf8a4f1d68ce522b504c31a7e4f444d47d6339a2a18fe3. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/25537eb4-3daa-4e4c-91a2-c6ded0595559.json and https://artists.proofprofile.net/proofs/artist/25537eb4-3daa-4e4c-91a2-c6ded0595559.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 0x487576dbf815cbeedca9e48677a32a586c1a4e67ab9c7a38ad523cc3efd59860. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/UKDC91600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a1c89c7752895465245c9532d048db513a4799138d228e2356acc6cded0430d. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T00:39:52Z), 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/UKDC91700012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1424ffc7c825c38cffd4fc95b249ba5ce124225e68405a96efcef2de5cd1ea17. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/UKDC91700011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d3ad9e8b4a835fe79de8cd7629ef0487d4c505b0bee812c89c22e14bcba89f1. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/UKDC91800014.
I Think About You Every Night (J Husl3 Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab93c87fac540bc79e5805607145d52bd23c41c10a0f92f1ffc4d3980f89544. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-17T02:43:13Z), 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/GBER71900382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a1e2dccd65387c3886d90a9b228ae1db6fa7faa2a5959f51ed618ed482dfac9. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:19:03Z), 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/UKWX82100420.