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 0x22e3f87f8f6ade1b28f71d5d83631a21d90a49d0272b3f0192b361158d8c4802. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/89488d21-79f1-43b1-9552-c9fd849ae899.json and https://artists.proofprofile.net/proofs/artist/89488d21-79f1-43b1-9552-c9fd849ae899.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 0x2da265f44c0f19b4bcf9fad2d4a16949546725f79f0401f2af92ebf2ce804f1f. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:11:23Z), 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/QZZ7X2417535.
PRAY FOR ME [Prod. Fy Beats) (Scratches Sick Mukmen]
PRAY FOR ME - Prod. Fy Beats) (Scratches Sick Mukmen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43a62c5eb22f5d2ec56f25a8f491077d300ca861886c3371876c17572d9f8a52. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/QZWFL2570018.
EN EL SUR (Prod. Xavier X) [Scratches Dj Bicho]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f8188f017163673aa0b6fa084da030fcf49d22b9f8d6cb3f94e6027320a0611. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:19:46Z), 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/QZWFF2552591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3d51fc9679bde6711f0d1cd4bc2393371cf8e68384282e4ff6cccfd348f7060. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZZ7M2500344.