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 0x8231ae265336a98e251d34ebb3ed9efeb4b411f546d3a0bba61dd7e76141c632. 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/fa39ca7f-ff66-4281-a311-18e1526f025c.json and https://artists.proofprofile.net/proofs/artist/fa39ca7f-ff66-4281-a311-18e1526f025c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Amdah Nabawiya, vol. 1 (Quran - Coran - 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 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 0x800500728f4130ab28dda8f268c70b2752a80844c03a7bef67775f39779ee8e9. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/FR6V82120850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70d6fbf075301789e0d35b19520b342fe1ef12b03ce4485b0836a395d42a429c. 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/FR6V82120852.
Amdah Nabawiya, vol. 5 (Quran - Coran - Islam)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x513780e86f6b7fff1c6018eee4c4fda70ab13ce204a84bb1bb8ac81d65b23826. 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/FR6V82120890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaddde7aedb8f9e0256811f03843a22338b3f59b72896fe5e8751a86412f7a11. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FR6V82120895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10339493e0574d7dadab23a5d87b5f8e114ad993f19e193b331a4134fa4b4360. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/FR6V82120897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e544e1f06447fba0e68ab32112dd02106e7f1e80e67b88599c5258d12c8891e. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FR6V82120901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb865bc7eaa1a845f72ff13ced1bbbf0fbe1d9cad650c2bf3458cb32553f31fc3. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/FR6V82120903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe32790c8d631181073307405bc2235524e5a54a1c388d40d7c180ad69cd5ac09. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/FR6V82120905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb7aa7e78e03f0465386024ac972151775b1d5373604ca8eeb7659a6d532001b. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FR6V82120908.
Amdah Nabawiya, vol. 2 (Quran - Coran - Islam)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc30503651e2a3f3cae71e46961f793edaea737ec1cd7fe48a6e2b5dcb2a254b7. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/FR6V82120853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27d734c3a8e21be830c64015cc1833d3f2597bbe938739ceeea4cde14e7b5106. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/FR6V82120854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb741449516364f68055702731447e2e1c7d1bac5de79514e2cd9422107e7d976. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/FR6V82120855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d8e68a831a27d5fffdb5ab243a3567f24bf20029f098b7c57310517a1de5630. Chain 2 (Bitcoin): anchored in block 958819 (2026-07-20T04:08:24Z), 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/FR6V82120857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x346fef8e400db7107aa2536fc29e1dd303021bb8e4b39f7f0a364c4ff1fe3fa7. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/FR6V82120858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5222cd06c51878cd35256c1d2b8bfcb0f50feb2936d51ce6a839a4ec53e126a. 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/FR6V82120859.
Amdah Nabawiya, vol. 4 (Quran - Coran - Islam)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eb0fa5cbc196c3e284ab86c441fe80eb576c4bcca9a0af36724e1bb36a24227. 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/FR6V82120866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b257c36cda20e0615e82302decd9a51cd6a92d2cef5eb99e4250eacea2ed827. 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/FR6V82120867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84a913ffeb71369c68c5f571c2bfb58711861ae1a1ffe86964bb0fe60fb82fab. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/FR6V82120871.
Amdah Nabawiya, vol. 3 (Quran - Coran - Islam)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fcb7ee9d043351fc5dcc79df48ce5005bbb46aa1d810b3ea78fe8669eb3ee8f. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/FR6V82120861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d726c21e872e15145952781d038c876de75dfe93b07ecfdc2e890a733fb2e49. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/FR6V82120862.