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 0xf7bbb4c822a0425fdd0944ffe62f4c6c3574e3c7abc685f8d4c3a3ea47ca6257. 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/1c6f107f-3ec5-4675-8937-b939b4bb5133.json and https://artists.proofprofile.net/proofs/artist/1c6f107f-3ec5-4675-8937-b939b4bb5133.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Khali Pesa Ki Mohabat Meri Jaan (Mewati)
Dimpal Jaan Dil Todgi Waseem Ko (Mewati)
Sohil Bagholiyasohil Baghola Sanna Jaan (Mewati)
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 0x9926d7f700f8bb10ef36739339082a7e7f7a9e9e131250ed74d3ec80e595e11f. 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/INT982312452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd667dfb781138cce6dcceefdd88e24f87f5de4686417914eb146dcd87693c844. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/INT982315256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8894089098faa4cd90b937b912d66a9bea972db474f9b27404bb4965b0ffcfea. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/INT982338021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32e776542a57330433db003a9d4d8b011d0aafe0a089d46a8be9c62e606ce0b8. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/INT982338038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebf3fbecc03d679a517bd9c53b27fbf6de2bd426d69842aba2c6324e7b2e241d. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/INT982338050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8759defe351b53a8545709a5ea8dc8f36cac4e2515aed451ce1936bd366bc3c. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/INT982338048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece414fe101c622910b9d2374e2cefb6577f8a9f1b8a56be3122621daac94ffd. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T20:44:14Z), 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/INT982338058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76389a7d71a854b590db591ae91c0da39db97760f668ef81f4b2020156f55e7b. 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/INT982406026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf007163ef4a6ae9c04c064cb0f848858f5ba2d9ffcda5e92c9e2dd48e021213a. Chain 2 (Bitcoin): anchored in block 957527 (2026-07-11T06:08:55Z), 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/INT982406036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa97baea3cd4abe6aea2920ae94d2e2922fa50b17de71f954dc82ea7859503887. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/INT982406070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7f73f7b958f18cfd63046a50fb01dc8a11441140a4ce93d5e5fb89ed52ba3f7. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/INT982520012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5f7beca822e93bde0fcf4d7b7b7e7cd763cac558cc5c7a625d793e83992cb5a. 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/INM1Q2438031.
Ptlo Pelar Bhiro Aang Dikha Moti Moti Jang
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd36b24ee03be63ec1cb16dbf88ba32994f950aaafad886b494bd5ccdb1ba64fe. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/INT982543005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d16b6de240bf052ffb553a7cd495b1c60b2b5ade24522fd503b85bc6ed8c52e. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/INT982543088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31eb836e1f8acb956c3690c437cbe731713235272bfd8892dd77b996de61cd99. 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/INT982544295.