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 0x7d93fc2f72887b56d374322c3173ba4830291e657737556287d1cd608a337863. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ed015328-89d2-4dd1-92f1-53425d756f3b.json and https://artists.proofprofile.net/proofs/artist/ed015328-89d2-4dd1-92f1-53425d756f3b.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2931fa0637af03066f56ef8311d78100b2a30b92e7385296b91475a3130197e. 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/QM6N22429451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc6127381c686beb7b1734bb8c1a31a9f2b18acf822075fef31d33e082400886. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/QM6N22429426.
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 0xd13b8dcd051ef2da1b5478e6f7e13aa8a3085a5cfac45d740dd278c98fed02df. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QM6N22429436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaea3706d3bd177af52aab670c512595f2d11a57e92929b01edd3f32eb1b67ba3. 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/QM6MZ2468025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x899fca2d7fb0d905ac45f61f8177aa4ed85c84cb8d7cfe2e89a684448e5b87e5. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/QM6MZ2468020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd8f320dc7ea62489daf661afeaa4bd157af46542d423d6352dc6462e43c01d2. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QM6MZ2468021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5459680a2cbf20084dfdd39969aea226eb3cc915b37e1b2bc08c01802d1194bf. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/QM6MZ2468034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13d74b032525fd767a0b0c25e57c95b244c917416ce70d6738db22a20d09bde1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QM6MZ2456503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb127522612c30b9695af7a2349856f84e6eb3ddc796c90861b13ec577c96fb8d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QM6MZ2456507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c268f891a32b62162719db76614c2e6925aa61a55790cb0b77d2e1d41cff149. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QM6MZ2456501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2249d294cffedb290c414b1e83c04a71f0be7e4a5489fd2b794b988599b4f92a. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QM6MZ2456508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3287e227c69cc92a845df88cfde2912cdf2165a0790c213bb291e7dc677d685f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QMDA62489903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30129b242abe7b36bc85b572b3c8a2d4f2dd51f6301ff042bfe9106e9c257dc4. 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/QMDA62489904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2467550444e60a5d7958a0c7dd40e1dac723492620b7c91a1329522a1705aae3. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QMDA62489905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6edc51fa1264a55712477d55afbb84fb15f63cd15310b87819679c95228b8a75. 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/QMDA62489906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e012a7b6c02a74b365ba6ede970b0870afa7da66df040fab801f2c029322570. 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/QMDA62489907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4560b07bc25370324bc3b22302c0af58fe2e089142bf61a18391629118195f65. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/QMDA62489908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x845302009df48815a797d1c95f64618f50a5b61a0a0c544771464ea679d49ac6. 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/QMFME2391634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x084c386497b6876916c3da102ef28f87fb0bec784668813d8f59d07bd6cffdeb. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QMDA62182592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd374a95c6bd2c7fc47e53cd4d218275d98140f9626f895c3e0d58188a957c5ef. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QMDA62182593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeb4cfc4357ebf5572050c4032f904045f91b96f4966a946d718aef51f611289. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QMDA62182594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1f6699bedef5577defec7235f5c390d91b6fe8a78f78f4fa05b9404291bf081. 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/QMDA62182596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07101578331d2d98b49c63d8c141807166951588223054afcf48f24cbfbf4714. 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/QMDA62182595.
Dundi Mirzu Ek Adhoori Prem Gatha - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d7b6c30d23cae436143d3aefd0985a61d239c809b1f049a243419afa0f09d8. 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/MHZ201900065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe8a762ebf5bc794782bd657d7ce80372b65e4b8df6821e08144b90b979b2715. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/MHZ201900015.