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 0x826ec41aaf50033a46776f6bc3c64876561add60eea7d83233f4ff2e7caf5c8b. 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/e2e2f8ad-9358-4a3e-a58a-c337f9a5d524.json and https://artists.proofprofile.net/proofs/artist/e2e2f8ad-9358-4a3e-a58a-c337f9a5d524.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 0xb84331093c95f34fb77b47ec99d99cae91883b3d423ced3d6ec0cf99db6fcd1b. 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/FR59R2359447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25966abc172e3f364bf00d4696db735eb8ad8db9e6326359d9b8c0b41df06bcc. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/DGA072294192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2d2fc68cb9b9ff62b9548ffb397803600164f78842e53e0022bf38b6f0a3bc5. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/DGA082204195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa02386ae176d316aa0d93662c3f00bf054f51c10c75c77a0e3f60263bc562bc0. 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/DGA082204198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf12cc731c57bcd7cc9a1cb5e457ba67d538cde040d191d54f8db659353614d1c. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T05:02:52Z), 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/DGA082218771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacb7f252df6299cc7c932a0388ad8848350a793acfd434a189ece0e733b4a73b. 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/DGA082218767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c39647fe772462fe9a41977d39e6c2c4f849744e91233dd6bdb2706c84f93d1. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/DGA082239404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8d84320de33e034e000ae54ec1bfeface1a7a2ec548241e59113bdb571d4cc9. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/FR59R2327028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x326d707a590cce0a4425eef6bb11af23c954ebc4dbb42df3bd92e275e828648b. 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/FR59R2326695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8513abed5673398915c336f0d1ca4b3a78a6d085517e1f94276089c41b51c91d. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/FR59R2326959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fa483d318af93a10d644f9ca4aa1be80aafd37e9fcd2f283be862eca87e575b. 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/FR59R2326681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce934b52e03b81e969d9b01202b9b307ced3f68578f6c02ded43d5a2bae80b70. 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/FR59R2326665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x257b0bae0041c9671f5c22a5324435ffe78d607792b37284449727656f209b69. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/FR2X42388070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a44327691967ecfae62d6f35c57fa5649b7ec4ee85974d4264123d532594d81. 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/DGA092202747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda9a248ff9398380c786d398e1a5e0be0c53504833f569d930a77cf036770de1. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/FRX282315436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbfbe8e98b2833d8aa606e191e20664ff9fa865bb60f0cfb532c9badea0ca9a2. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/FRX452391078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cd98b45b67e4d2047fabaa6e98b82fc9079015538c88259a4ad477385c061cc. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/FRX452391077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5feeb75fe86facaa4a55cb807ec4c644fe242815e9fb8ca3b1b11b4a8bebf6d. 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/DGA092379694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02f0810a5cc3861e881f733e06d2ef891f316556b7eeed69ca1658a60fce9421. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/DGA082302813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b4dcaa614c4393eebf38d4f25b756dd0c9eec677bf14b43ba892b8eb299e6ad. 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/DGA0R2325129.
Payiz Geldi / Bu Qala Dasli Qala / Yagma Yagis / Bu Qizlarin Teline Bax (Popuri)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2fafa13e57c379de81ea9d7165a6f13d1b6d42bd009331b190fbd0ab6983af8. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/FR59R2495918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78bc722e5fcc12963f512bd5debcab687f06b4325ffdd7ad70795f9d4a5f8306. 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/DGA0P2403635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15c4f3591b8170bd88724c2e90e918ab75857424920d99dba740205db40f7338. 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/DGA0P2427560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58f6abd79293cddbfe7ddbc55b5344c5b4912a4a54d9b5fa5201b97a50c0f54a. 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/DGA0P2436532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa01e57f4ae7159a1cc793a08d72221262a67154e5ece705e05b14faf8d0ee9bd. 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/DGA0P2436453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51b8bf586f48008e201ed9d36b20b0966e3acb6e19a1bcbb032a639caa665e59. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/DGA0P2436452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8952e01037f1ada8a4ca019b0323a45b4ad9eaf524d61184a3c774f728f070da. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/FR10S2585781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18abfabc013f8689ba0bcca9e5516e809e11d0d148ebb704007b8cd2e4895132. 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/FRX202538731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b14142715b10ba6201780bc7e5c0118316510190aa9440210fa94640b7a24bc. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/FRX282595723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b77d782dd4a776cdfcda747acf7aac87d4029add8eca7b3676e84198469d777. 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/FRX452515394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x851f49ac4664431110c290b51a774dfcfab90ff08f5f5547284198409db0ef38. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/FRX872590540.