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 0x7feb4354a2a5c4515c9f80ac0589a70dcf6bd8089b05fc8d4141559070fa854b. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9d62fea2-41ff-48f2-af38-bc96603ca6d6.json and https://artists.proofprofile.net/proofs/artist/9d62fea2-41ff-48f2-af38-bc96603ca6d6.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 0xbb3cb5ab185dcddf0d28962b4b37a2327cd8c7030bb3269caba4aa184626419d. 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/FI3TB0700022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a06ec2e0ff260ec71e66e480560794a972a3a7845193b5f6eac9c62e7742ce5. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T18:53:40Z), 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/FI3TB0700025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fde93621bfd4af80d8df1e26d6c7ce2b58b3f7cfc41fa6a4c86066f3bfd0d28. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/FI3TB0700026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98f03c895436ff698b794ac8a660e652318a14c0a5b070d588741d3898383885. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/FI3TB0700027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x505279147c88fe3397889b63e95f96b0143b75a5d6fb3e3b62e208b318bdb97a. Chain 2 (Bitcoin): anchored in block 958865 (2026-07-20T13:19:13Z), 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/FI3TB0700028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae438745e3c222f248223f2d5415cf705f42e490c15f60eeec79103d20d59b0. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T03:58:14Z), 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/FI3TB0700029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2202caa44d8c51b7fcdb21e183d357de57ff36568a601889a3b100b41d54e9cd. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T23:06:03Z), 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/FI3TB0700031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fa991d2be41381b192cbb2b5d99909198c3cf73f01d4c80143185af33b019ca. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/FI3TB1000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeebdfac94e889831fb271aedf4cbb2f6ab1f0a344584ac0ed9c104a1f0a9560c. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:35:26Z), 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/FI3TB1000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43514dbf0a15fc3f2a9c0e8196a4240579332d4992d36ff1cea42116fc0b7933. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:35:00Z), 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/FI3TB1000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa313516dd8b67659418023268c7ed452dbce011fbd92bb17d8d19298077f637. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/FI3TB1000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08aa80663b30c49dc8265f69d9c3f7b68b456a87491fb8b33965413e248d65d0. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/FIKHY1200130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x662008e2a45b0d1a781ec3c4b30fa49da7038ea823250dfd9adcc85f236e00bd. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/FIKHY1300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcb090a50049bd956d88b0b2c46aad64ac28200654796e96bcefebd197ded32f. 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/FIKHY1300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb55658182316bf1c799c3480f4ab2cd78c53498a48c425a77fa6a39ea4bd4fd5. 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/FIKHY1300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87db692496bc5fefc8a18346a894b5c25c4cf805de1514257a8802561dc87cec. 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/FIKHY1300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86d20c64a77673e33b62514a55115f0ca4c2b67b9cbd2fa1a3cf47fdf948cde4. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/FIKHY1300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc909f397515e4949c8ce000a4fbd7519dd82784a89e307e92b35d2a2573bd3f8. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:38:52Z), 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/FIKHY1400040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b68d9793494a42292ffc9fd4b65f82337bc4e3cd75c67610e3afb393ad1341. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:09:42Z), 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/FIKHY1500090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd419fbc3e7ccd11da1be163354ae3048edd0327cddfd2644b9b32d6df80dae48. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:39:25Z), 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/FIKHY1500102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe081fc11ae4085ffb7bc9b350d533f54d4fcb716df68f55fb76daf3a90aa5360. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FIKHY1500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa73f4da6a2a9c1f533615078824ae3ab8fe70073a3f9958cddea1634b0c01ff7. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:42:12Z), 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/FIWMA1700032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf89b4c9f039dc92eb2637efb9be87d5290e4d4cef6fbf901dca302391eec6482. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:39:22Z), 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/FIWMA1700274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf4db1786f11553b114f0b2362201d916d8c4d4cb2e59b06f5b3fcf67a4408f9. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/FIWMA1800319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b375229d8505ca0fa43b45fcd07c7446c14d81becbf0dcf90aaf4ded9b3f76d. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/FIWMA1900142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3399c045d1e1cb15e7f098375a9d8ddab6527b8687d63bed1efe745cd9e231d5. 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/FIWMA2000143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaa3d4f4e031e55153f94a1ed12a799d723dd05afc6ef0caaea52ffe366d1629. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/FIKHY2400011.
Tsiigaa sun perää (feat. Raappana & Seksikäs-Suklaa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x260716f5c550dc1cd7eaaf4419c8d9ab54777170962754a2d0e75db9d169c467. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FIKHY1800017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94f0203d774953d8dd7e05480868488680dc5bcdbfe6a7d529babb251fb96a35. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FIMRR1200126.