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 0xda949eed67a5dab44757f5b4c76ebf8277ddd5687d176aea936d76390905a49b. 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/f9b144d4-7d70-46fe-99b1-7cec3d18a346.json and https://artists.proofprofile.net/proofs/artist/f9b144d4-7d70-46fe-99b1-7cec3d18a346.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Fareed Ayaz & Abu Muhammad Qawwal Live at Dream Journey 2015
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 0xa9615cb97486d83c1153605617b48a52afab24ba2b7bc5a3e0e3213f4858d49b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZFYZ2287199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf08abb95be449cc6c96e1e087c3f351b9582f128600f85c8cbd1bb5962144bfb. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QZFYZ2287200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9aeba6c1ff05befdd0a702acd267789c5eb2a7273f410ad8b6091012fb5a715. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZFYZ2287201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c872d1c2625296cfa4e4d46005d9dd0d48222f25c847c6c69f1d0f63eab694b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZFYZ2287203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd46949ef852d5a0071a2d72301d96b78f29677f82d39cf757065439623b017f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZFYZ2287205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46df8dc9c99f491474e9f74e620dbe99bdc542eccc9bc074db7c7ea99ef79739. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QZFYZ2287206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe74278c7069a9da2c60bd88a7bf0762a6e5ddde9617695a563ba74d0fc59655. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZFYZ2287207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cec22666e9d2afadec4f312289a4881ffd3b8426f72c16eb9312bacd0504abb. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZFYZ2287208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe328652ec873c62d1fdec3f834a99216076e1b150004667553813a3d32109533. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZFYZ2287209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9540a4b90e1da85fa1e5ad2cffdf9790de71814ff288a0be1ea4242e331bd3a2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZFYZ2287210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12b5a55f3a187ad513e3d9b7652d8c06b75992a7ae4c83d2c6e24adbeaa6161b. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZFYZ2287212.
Khaak se Lala o Gul Sumbul o Reehan Nikle
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a4bf82e6cfcfeef65b8b4e9b9325c8208123714a7d41beb3af38d3ac3f0ff2e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZFYZ2287213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ff137b8179c6126b4a1d8d14408580e11179e9607cd22bc803ef6a10a201de. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QZFYZ2287214.
Jab Elh e Khirad Dair o Haram Dhoond Rahe Thae
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c6fde40012a5dc7579eb4fd716640802e1df3f3cba28a9b4cd367e46f7f055e. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZFYZ2287202.
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 0x03c777990512e6c2ff70d09ef689b8cfb8ca091779c80d9cc291d92f8ce9617b. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/QZFYZ2287204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb88163a2c82792f863b5458e4ee2a4cbc93de1e28c29c4cf1e40a9ed94a29065. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/QZFYZ2287211.
Fareed Ayaz Abu Muhammad Qawwal & Brothers
Coke Studio Season 11 (Sound of The Nation)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf81cc7970b44320fe618f0e88b066ddab0a8a5163b4ba159efb7ae0cabfd753b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZN882126795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc69cb48f4b01ac102acf4f6fd89cc1d97e3f2e5b9e0fb953d140662d4a4e6b9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZN882126805.