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 0xc606090cd4ec1bfa2dc4078866281c18da302620e525b11f8b94909666ba02e1. 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/f17f5f73-c7c8-4c9f-b3ca-e9cf31d5f6c6.json and https://artists.proofprofile.net/proofs/artist/f17f5f73-c7c8-4c9f-b3ca-e9cf31d5f6c6.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 0xc780b14d47aca039f99b257d4b643587950e3147c7898cadd7214923f6f31866. 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/FRX201602863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a14d50782fc714ac0e13ed550c805e43f49858bf85c33eec2e70c03ae24689a. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/PLI360120290.
Кімната в середині мого серця (Перевидання)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dd26e71afa8953e25ce5d182f268b8a20499b06df012f723a26ba0478079018. 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/FRX201603054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b39ce1bab4e69f2aeb5872ab3daf03fdd126e0470c45d1c6feca6b1be0e99ee. 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/PLI360127290.
Live in Atlas 2017 (Pavliк OverDrive Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa964c6c3aabc8a37c3c02e27c36d54d1ba6aa830f6548e5a1b6cdd74a151bb15. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/FR96X1917631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81f5bce432f41904a9a6d0c6974812abb39cb9d3e85bbef0cffcd94161f125ac. 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/FRX201994447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfbc00ee54e7ab4efe5820090e276d0d7bec36043e9960525eec92373e927586. 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/FRX201994449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c9ad63ae56c83403114a7904508af077bd3c2465ea4d1bf59b67facc465b12f. 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/RUA1D2111813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x401b12e3b97989886091701c1c3115b003a485fc2f4abb0f146e95d7903454d0. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/PLI360495280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fb21767877d99058470022e12e0fa8a88223309339ecca410bd85d46693e26f. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), 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/PLI360495380.
Не кажи прощай (Ти моя весна, Version 2022)
Ні обіцянок, ні пробачень (Alex Fleev Remix 2022)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0a59c4fb32a7f6416b5a39e5827976cfa4f1c76dc54252cbbb42357c255ce4e. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FRX282256774.
Я піду в далекі гори (Live in Subway 2022)
Я без Тебе безсилий, Господь (Version 2022)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f75ccff2d43bb7bf58b397d7323a2c89058eb21cb772cc3ede9adb4a59fa37e. 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/FRX452387019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc9bcd3cbb9d231f50425d38c31b489e312efd69d9a7e439f6b0ae32973fc48f. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/PLI369692070.
Сяйво зеленого міста (Remix by Jenia Suvorov)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab0068d05e9eb72fcd4bf1fb3eb3f5bd828f05568ed7ce2bf3a4f322c32d263b. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DGA0Q2341209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ecd4e95ae5b508f5764ca222b0442533612c9b3dc9d833f48ed234166b81bfb. 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/FR10S2547848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe19cdc82e43a1af86ffaba5a0da60e22fad66bbb7e4a0df2c7a05ac44322cc8. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FR2X42539384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcebd5448ea11bef84e2e7f2ed5a1bbc0fa55970c5b5df5b8dfec497beff6deb5. 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/FR2X42566371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda49f937c6615bbc13834f40a3b1ed29ba11986edb04f7424a070aded21f04bd. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), 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/FR59R2513139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6214c72cf36d9379efbbc8aeb512c651b2941023b559a52067bd896ed48334d. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/PLI364949470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84dc2e5294b7cdf17979fc2bd22369dfe3b80a75da65617f033b0393442ea666. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/PLI362026360.
Я дякую тобі, що ти моя - Alex Fleev Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0fc64fab7a7b9cb2d1750a5e3b114eba9366b76ec5ba8ccd4791e333b00f3b8. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T04:55:29Z), 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/FRX452550395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x859b3530c45e17218e4f8ea266b310b30d23b89d23dc26b8fdf40b6a203b9483. 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/FRX452550397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d78df9c2f304937aaabd524c3de4401b9e8e3943cdbb0dbe06d9b7b0dfe958c. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/PLI361121860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e9b2552c2572cae8bdd2d39312fa735965e6801f5574cf02c5ed5cd773dfc67. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/FRX872592600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc456eb7e215a1a209503edcfc0dd4bdca2ffdcc4e67dded5400da892e8893bd5. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/FRX872592601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc5e0e66a414aa635259a801305581cd4068b22dc77367aa8926b87662b8dc8e. 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/FRX872592604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dac71077d37ede1fea0717a9def2e0075eca9fd349d117581c1041569a4cecd. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/DGA052593854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6891a26cd9508956d832316bdb0e21997ef29f4f0afa5375a7640a35510fb34c. 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/DGA062511654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde93cef4c3a25d2746c8e06fa0ba7d5d7069bf90991df6ca244daa05f89d4321. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DGA062511655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a98769e0f5cb38e947a7a1a5539d0cc1dddc7508d7bf8de7a828f9f34b28d01. 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/DGA062511656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff940408475a16982d4d48451710bcc6208a925539a0190ab10b66e2917cf707. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/DGA062511657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x223da855c60667736e6e9524085f2d378e69ee9ffb5e39a7c645be3c92469f64. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/DGA062511660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dc9322e9d94411ab27286af370b67fc66d0f0b5868f2bbb7c17147aeb48088c. 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/DGA062511662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05729f34bd0d69a29e7492b3fb1273bbf440e3efad3ff73dd2074a1a2bb908f3. 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/PLI365239621.