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 0x13324df5c30d96272e75394e56b5ccf96d93ee6364c96b72512a2df1cb673db5. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fdfda106-f4e3-4b7e-8dcd-084820047d43.json and https://artists.proofprofile.net/proofs/artist/fdfda106-f4e3-4b7e-8dcd-084820047d43.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 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 0xa2dec8731bd958cc02a7c696784926f13e362fb4a66e4b7dde720cfc9681f145. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T10:12:17Z), 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/FRX762325333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd958006057d1dd96674c0af5278efe1db54226900ef037b3328588b4d8e62130. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FRX762325352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ed33a34112f0a675d93fda36eb2fbd57c1f25bd3735877809ffd4103e051450. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/FRX762325373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7711a5ec6bd51c9c0dccc4e2d7b8f9254c47b5963663e5b2bedf9a69ddbfd254. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/FRX762325389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5680bbc9f8cdce58d933c0dc9aa3d644a0009e344a9282e5776b0a091490371b. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/FRX762325400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41aa8d1bba0ed0c538e93943422e441c47c545c1d68b3255a1bd24648235219a. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/FRX762325401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf325e2340a34a61b1876d742b508ca14ec93da789a05d825d073c2389bfcac15. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/FRX762325409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa820e159ac95bf6f546c2871a981475f6354e8ca5c770c6a2bb63a04118625ae. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FRX762325437.
Sourate Al Fatiha (Quran - Coran - Islam)
Sourate Al Baqara (Quran - Coran - Islam)
Sourate Al Maidah (Quran - Coran - Islam)
Sourates Ar Raad, Ibrahim, Al Hijr (Quran - Coran - Islam)
Sourate Al Aaraf (Quran - Coran - Islam)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad66f354ab04dc2a20c3aea274d2aa849413af136f66777d2f489c204bdfdcec. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/FR6V82264353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9081e47db4291f73c085a25b5b2216551da631756b91c085feec2b8e76feeba4. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FR6V82264355.
Sourate Al Imran (Quran - Coran - Islam)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a0e773a6550f186a414a3501c60d0bad85e58ae4b6a062bf63b63c8ab5b02b2. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/FR6V82264434.
Sourate At Tawbah (Quran - Coran - Islam)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadc0113a8216664ba36a6c89475541c484872723628f63a4724dc9771861ce5d. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/FR6V82263812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55a83098039f1ad3cc648848320de33b4583c7678dd1bbebaeccde0efb994eee. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FR6V82263813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x160b4a91280941d39b1accbd8df1491cade62f6152b85948ea9122dd7bbdf710. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T16:12:29Z), 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/FR6V82263814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07b67d2cb6b8316bdb5916816ff2fd3e7035ed8fb04c56c476a7b4ba766b7ffe. 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/FR6V82263815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d87e8983696bd231b91aa7df7c18b2adea2c4503c2b0e3fa390423f093300e6. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/FR6V82263816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa9dc138b637779bde6fbb5e2417d4a6bafd9f50febfa10a100dd3a0add1793. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/FR6V82263817.
Sourates Saba, Fatir, Ya Sin (Quran - Coran - Islam)
Sourates Maryam, Ta Ha (Quran - Coran - Islam)
Sourate Al Anfal (Quran - Coran - Islam)
Sourate Al Fatiha - Quran - Coran - Islam
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12cc51a2f963a64d6b09f9bb6ce9438fee44725a7fee799b909a32bffe4430e9. 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/FR6V82259200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1414c5c22e86caa4eb00593ad7cceb2094b0a31c7632bc10e32811f05d719461. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/FR6V82260989.
Sourate Al Anbiya (Quran - coran - Islam)
Beautiful Recitation, Vol. 12 (Quran - Coran - Islam)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f11240f6d7071fcd616890f939194e83fed6b208fa1cf974c5a6d11b0965ac8. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FR6V82359412.
Sourates Al Bayyinah, Az Zalzalah, Al Adiyate, Al Qariah (Quran - Coran - Islam)
Sourates Al Haqqah, An Naba, At Takwir, Al Infitar (Quran - Coran - Islam)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03db3799471dafdede976e0400fe034239e8ea74012a135ff3dc1db906ee174e. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/FR6V82359483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1485523d2b668781099c84a0a579f8532a06f8c850bd2f561d8db4e48beae6c. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FR6V82359484.
Beautiful Recitation, Vol. 28 (Quran - Coran - Islam)
Beautiful Recitation, Vol. 24 (Quran - Coran - Islam)
Beautiful Recitation, Vol. 25 (Quran - Coran - Islam)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4f189cf64fca7e4608e068b699233e38323d5000c37ae0707e7ce03c6a6e869. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FR6V82366895.
Beautiful Recitation, Vol. 32 (Quran - Coran - Islam)
Beautiful Recitation, Vol. 33 (Quran - Coran - Islam)