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 0x001ca7e8dd88aec1ca42b59e2ab6e7d26f2e1de13b7d4e1e524369343b40bf44. Chain 2 (Bitcoin): anchored in block 953687 (2026-06-14T20:19:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/68f6e7c4-1e31-472e-9498-392bf83c1888.json and https://artists.proofprofile.net/proofs/artist/68f6e7c4-1e31-472e-9498-392bf83c1888.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 0xef5059a2aa891a3316a18aa11ff67517e75714b004c06dbff08a704dc76c4221. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:53:02Z), 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/UKXN22403436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9c7e3825f488f618357e6a91b87964c969bf484379aad188afde0d665d0cd7d. 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/UKXN22403437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3181f8c375c778fc00661481e2bfccbac89b00344826a5c1bb1f80c4b0a1ba4e. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:06:23Z), 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/UKXN22403438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed62c10c4a87e5a5637c743d4813b18ef4a600b491554167676c27b52158771f. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/UKXN22403439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe556b1478ce827aaea16460e51c72ac8bda332cf051ef104cb8c8fb7699a50ed. 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/UKXN22403440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f61666e3623679e4ac92452cd34723d675407bdb5049ead62c65086b78ca52a. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/UKXN22403441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32890bc8670596b6e1145c6952edc1828039c703d38eb967555547f4440a45fd. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/UKXN22403442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa62b8fc453fe270ae7813a5e71bd787b26c2de1a84b2bcc6b7eafe198d1bec13. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/UKXN22403443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa13c1b444bc056eb3b2ce71e13fd7562a925397f81894c34ef2036c176c7f445. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/UKXN22473294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5b5905483f2efad8fb2c53168372a1ff1c249ff43d10bded70b1c66ad9ad978. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/UKXN22473295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc97e84a892fd6d268c8ae29361929c84f9057a22853aa7f03c0178edafc39151. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/UKXN22473296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dbb64e84a9c1396ce3426d2ccf98e294e8c5a05afe9fb87ce402102518eee26. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/UKXN22473298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22809b2bfe62d48780526f7017ee9000ef52fa39f9179c96b2804b50dad9b191. 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/UKXN22473299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x749d02787abdb3c69c122ea6688fe29962b04f77647e1c4d069447acffb567c5. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:03:20Z), 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/UKXN22473300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc77a437d644ddf4b0893f538eaec66257de96dfdce34102edb2cc65bc46631e. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/UKXN22473301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f13884874e9a2817a6095968a25f41f96e810bfc1eaf1694318697808e1f4bd. 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/GBMA22438423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd084e5bb78f52a30b5309bfe9926b3576f91746b43ff6e61c001ab7ad2330578. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:01:03Z), 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/GBMA22438424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce511a013a3ff987a99e44ac2b12d933f0d1335bd469238bc2e1015cde71e8ec. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/GBMA22438425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc652233a1ec32650353c3c4060e64ddf1e87d032c4d69fc2b1426f9fe230b1b8. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:12:47Z), 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/GBMA22438427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f523c5e1d5528ffd72908592579ee1d564464e2af5b829fc069a502acf3dc50. 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/GBMA22438429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4222b0daf036ecf783d1aa573f1517f0591694537527ab1d5a76e3a288ad89dd. 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/GBMA22438430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaef23ced7ed48743414abfd1ace16e02e4178ca1f81d482f0d66e28d96fa77a9. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/GX53U2365714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1df8cc806f6897e764208aab0f0632ee8bef00ae4047f5c8bc9a0b024f63bd7f. 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/GX53U2365715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x062a7262799bf936927292e74cd5fb5ac684deb4241a8ede0d73c36d00f931ee. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/GX53U2365716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fcb28ae25c614a739f6179404e8b00224d0bc7580e8b46b227e55a59121f43e. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/GX53U2365717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc29cb080e86fff2891af30e0b17e78a8429d092bae487f3c29453ed27e8ff430. 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/GX53U2365718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc609b75ade6d5262580b20f36272710fd63b03ac7e184fb97fac22988d12007c. 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/GX53U2365719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed43aecb4fc36656d91d69164bc0a43b74417bb6d81407babf2545549839c99f. 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/GX53U2365720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb298994cef35b966a728452b3391a24618eac753eca49930169bce7cf0ec5204. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/GX53U2365721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb63b1f684621ac82ff2f2b390b4beccc2bdc47ea70458c2af8593f456718151. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:58:53Z), 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/GBLFP2539287.