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 0x5eb8b104515368e9b273301b3c4d2edf842ad1a8d6c982afed95ed6683bd527a. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b6cfb31a-6a36-4833-bb74-cfb69b6297db.json and https://artists.proofprofile.net/proofs/artist/b6cfb31a-6a36-4833-bb74-cfb69b6297db.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Juzz Tabarak (Quran - Coran - Récitation Coranique - islam)
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 0xb2c0843298fd4034b749c86c8a9f221ea9d7bb701002d93fe6c486ed7b92d28d. Chain 2 (Bitcoin): anchored in block 958828 (2026-07-20T07:54:54Z), 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/FR6V81238119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x422c9f66105cf2b67da491c60929e0c40e967580aff2f446cd84ff585f3f2739. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/FR6V81238121.
Juzz Qad Sami (Quran - Coran - Récitation Coranique - Islam)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf23545a0c9be9e26a5bdbb3f155d812ed8951316fc25c4fb1d5f73a05947b7ff. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:13:12Z), 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/FR6V81254263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x834595d53c1f6c99e504a5c852c2bff86a94ca5c82a0d8cecf809f82b914a337. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/FR6V81254267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37616d77250737797165b78390e95c4e475d2e41810d209044572223588c8857. 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/FR6V81254268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa50c519836be5237a503a9dce8304d301915f1c86f2ea21853044b22b0338cb. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/FR6V81254271.
Sourates Al-Dariyat, Al-Tor, Al-Najm, Al-Qamar, Al-Rahmane, Al Waqi'a, Al Hadid (Quran - Coran - Islam - Récitation coranique)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b14baae3401e55adc9555f677a23de2b8b0704ca4f114cd212f112f806b8158. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80231414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ad045cf83c2dd5dc5ce20397c71a733b1112d8522794faec6cc5fb24957d44e. 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/FR6V80231415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x352a2049e067790c2ac9e2003c9a9c6ee5b1fe835d387b9ab2d29fe1cee3eae2. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/FR6V80231416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0beee804385994405dd763ec1d4c75cd72f013c692b82b13cac22213e070fa0. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/FR6V80231419.