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 0x1b3814dcf843dbc3c0d427306bac80fed2ba41902244d2374b2ef86cc9f0cbf7. 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/a7cea0f6-dc58-4cf1-97c7-cc931997b419.json and https://artists.proofprofile.net/proofs/artist/a7cea0f6-dc58-4cf1-97c7-cc931997b419.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 0xb4948687b6cb4c2f09c5aebe41a1fd3a4794dd1d37f48ba0f842716cc0d1b73b. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:40:35Z), 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/FRX282486488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82d639675a6452efb0f5fb91ede91b7244995553988af496b7f29174f6a1b183. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0R2458717.
البت لابسه البنطلون سوتها باينه (خاطبها واقف ع الرصيف)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f33d431822355eb1ada975af04e3d70135e1fe68f146da07e5dedd233a67e86. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/FR10S2524293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa997b63687442bfa28b351fc152cb77ef6fe89a3492f0f62c643066f8e042fc4. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/FR10S2524294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14ff824b5efe64d6c7b69336b8d51b321f9f18ccf7d75c91aa2328487d339b2d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FR10S2583397.
مهرجان العشرة السافلين (feat. Miso Misara)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddf0d04250f0ead598e37d79d3879046d5b76c82f00b23eba63c9f75e7f60c3c. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/USUYG1726442.