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 0x44352a3f363d76c97a5246988d28a071cfda8e1990b765d538e1c67cf4ede2c1. 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/f3e170de-1c96-4e9e-9b5d-b296c2bb2c56.json and https://artists.proofprofile.net/proofs/artist/f3e170de-1c96-4e9e-9b5d-b296c2bb2c56.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 0xdc65d3be96e5966a95659cd41bf47ab1f1ca2008aea9beae3e8e8aba7cdc41bd. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/FRX282284273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x841495f5238dda161584430aca582b65520e1d7550d41b81430c7286955145a4. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/INS181900632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8bdbd6d6996c223f698f261fa2cfa88e0cc60fb7fb9942eb6c6749ec7a84470. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/INS181900958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe77253e6a5221d77cbdda7b9cd9946bbbd9bf5db4e18a781f93e3708bc0103a3. 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/INM432000305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc71d4801e4c3a8f237e03449ed5e4a7d30180eb9ce16db34b548b0c180c89247. 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/INS922000308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3103fb0715d64f274b8b307239481849bd0145134b8c573d1b56f40d72777440. 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/INS182006621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7acfdd6a3c1f546d88a740dd9ebf5133be87f8bb896a431af17dc2890045e9d8. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/INS922000422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd679d345eee4e158a7a4725f178dcba7c0cb649d3ea21ba102a3f93593e24154. Chain 2 (Bitcoin): anchored in block 959355 (2026-07-24T03:24:16Z), 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/INS922000135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa611e02978b09506acf2240ca18a16bebf6189d167e88370ac47fdfe233306af. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/INS922000274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04e1a0077b3cf7f418188b95996ed13a39d516f39b8621f0b913d5a7d9387b08. 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/INS921901839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe6ba92a0f700d8a18f3c8a7c4066a0ee777a43d311fd4955a6af65dab1f0f7b. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/INS922000500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f73d885a051658888bb22586e34a958ad2998e902f0a2c93b69c4b6343b2f4d. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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/INS922000377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x285fb76826135a69545b714796914b85e963c43108ccbcbea8c7a456af10ed64. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/INS922100593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x898d14c51fa0bb693d2de08c1606260bf7e432e55f807ed6c6479dac043b4ca0. 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/INS182200341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44f6154735b9093e43f094e6ea2e73c91e9ce53c86fda91acce216ee631e0097. 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/INZ031411314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2c1a0ebfc469a16456b84057e3b59471388edd26e009b78556bce89291e1a67. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/INS182202228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf277a4b85d952ca85066a6367966df53f76365a5c7cd99f0e21292b642476d71. 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/INT502302878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x787be1c856ad35cff8c2e93eddb0d0918ac32203fdacca265c99b40283f6eb9e. 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/INS182301218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb810305633eb2027816c71d1e559b90f80d5ca4bbe7e71fa6123a626f98988e. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/USA2P2337128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26a76f12bf469ac23846e60ba8f39f6260c96f82fb5fbea1c255386b740c3abd. 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/INS182302143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef1c9674b1296c7f1c89f7f2ea799f9f4de73b8caa8141b1eac80b9cb1a222ff. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DGA0P2309075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8628e78c73b71e89aeca1b9177295391e4fffd765c284074c62ecba390a81abd. 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/INN172310189.
Fouji Fojan 2 Lofi (feat. Aamin Barodi & Sapna Choudhary)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6a91fab3fc521f0409d05c3dd854d5c5ca2349847f041af1e7e502403cb17fe. 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/FR96X2430068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc56053a25e6e55297993bf5f422771fcd8e9ca3bb62df5eb1f758e3d99f77015. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/INS182401040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa229cbfeae4d42a97300f7ec39c8687da0ef3b7ec267035ab2ee64b69cba9617. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/ING642402006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x284d1b753a727279b8a8325101e5f6f76c1aaea7daec8e350113650a1224a8ab. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/INS182401675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1d85435533b84f60e4088cec9d06d435ca0f3833b385c5b8984687a3a614934. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/INE182450172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5089caf636cc54006f578f2137f8169bef55990447788e907f6925030f558b67. 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/INE182450169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x717bb14e34050568453736ec1918d0c18b9d2ae19d9be04271323eba3c53621d. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/DGA082406210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7208a61b2bd3d2950855942f1054b5a5567bed0222808957af78a3cadce074eb. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/INS182401889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe78a3ccdec13e217fb060da35d72e770fa1fe5f2e6c067689ef47cb82f598932. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T05:30:12Z), 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/INT502404973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x257b0264e462c037f5c926a3bb6b5c7eb082e4842df178df45f65738e6962b78. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/DGA0Q2497067.
Paani Tokni Ka (feat. Aman Jaji, Nikku Sheoran, Nidhi Sharma & Aarohi Raghav)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd474c2089709751e89bdbf806c6fc9676eaa6b53a10d17bc810c15b40efe6779. 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/INS182400438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d994b664502a0e9ae6cf7c929f6d768ea23ac68aa83d2491c241fba9a07dd6e. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/INN172410225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83bf0fd6649abe2b7527ac4559992196696ecf2a035f180868e712ef1e679add. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/INT502307004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x961eefee6cc38016293fa2efd2df09d5e08090acb6b08f3ba170a5aac93d2d41. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/FR10S2573054.
Bewde Barati (feat. Kay D & Peehu Yaday)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93e1e99a4339c1c90e821eb130debf708d56833017644481751ed3ca4f02c28d. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/INS182500666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39df514fab0b3135cbe2a98139e3a2379b43aa1f78a36df853185591f1f8b8c5. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/INS182503138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dfafbad5ffee6f5424207af4c1c90567df651289f8a8139dafae3e8687f12f4. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/INS182504040.