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 0xbde17e9a841a2f28f4710f1fe19fa701702c1453d17f3b8103a5514cfd349292. 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/2f984d9f-d7ec-4d7a-b110-3379113815ef.json and https://artists.proofprofile.net/proofs/artist/2f984d9f-d7ec-4d7a-b110-3379113815ef.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 0xaf7dd278bf1e74d21217575d5c3def47a093d2a19bed55308013a007b5ce77ac. Chain 2 (Bitcoin): anchored in block 958117 (2026-07-15T10:20:53Z), 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/ZAA169900400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb5e09cc65af414c02593648317e13e7d0deb7d19424a0bec0e5439a9539e46. 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/ZAA169900402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c69a7c3169eb19d42cfeb80cb69dbac632550559d69da17d3509f5c52b08453. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/ZAA169900403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x947255af7e008db0e4b24a4ee4b50fe0d9aed895a4b5c73930cf9244b647aefe. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:22:40Z), 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/ZAA169900404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x515c10b5beb3c7ae2a14682523f57f5e73de4075e62d6a64a2b5ab683ac3dcf2. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T18:54:47Z), 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/ZAA169900405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf839ffd07e4b854ae7006121d02d5308f0175dbee105bdc229f5791339319914. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/ZAA169900406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x803274e8e69dbb38178b1266b4e2870fdd80a1227024cf97dd616dc4b447b647. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:38:23Z), 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/ZAA169900407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21cab67ca9c3f31e8fa3e12e84ad276ca2ad36adf8d71e6a1e42e61ffad328dd. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-17T04:28:23Z), 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/ZAA169900408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a5b24b34b43ef446eb41a09d9b4eab4ebc4b2a14903be592977b4c2f7c7fbf8. 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/ZAA169900409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x191c2c01e1374966c42d5512378da3742a4effc59311d19e0c0f791ef339fd1e. 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/ZAA169700584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x906382b5affd8d731007aa39eedf1e725409b78292f06dfcd66eee97bc913697. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ZAA169700585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4a437f225050767aefbfbb8bef53136112e7595e79ca45cc6f4edea1a1d08da. 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/ZAA169700586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfef31d182b8ed195af037d8bc285fbc6d0ff1b992825a2cf3b29edeff86db021. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/ZAA169700588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23a24a6bdb8d259e846863592f5f70084922ea0c9793ebd2684b25dfe77e88df. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/ZAA169700590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9096880acf19b2c95afe0edd5a7cef90d443d640eb45a011d368f46eae0d51e. 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/ZAA169700592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc3e4d465401d2e1d5e583db462510ea7ac1367af95eb40dbda8a1f2afded4e7. 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/ZAA169800499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ee84c0c05e8f5a66200b4a248bea101d2d76079ecf93c9de53d7574f00cec77. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-17T04:21:31Z), 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/ZAA169800507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x197bc78393822540bef92d40bab68af97e31e790664fb38812812729dc366350. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-17T04:11:18Z), 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/ZAA160300105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c8904ff6f7bd6b10c9c9fe6d397e52b0255a483a3a6b1a835a7d6d745bfbc5. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/ZAA160300107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e8c6db478cfc6b5570c0160f81cb24f81cffe72b9479ab715a2195d7ba38ac2. 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/ZAA160300109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe219d65d3e6bc75dd08852af299055e5e6ed3f451dc3e534cb0543babb408ec5. 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/ZAA160300110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x892690ef8e34bb33e48f50df59627f33bf4eb98a38f95b9e3558a30e5c3894f7. 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/ZAA160300111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1687fecf764ffa433d2fe09e1b83813c6635a2954e1f7db273ad9b4f09abde8. 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/ZAA160300113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b04ec215ea6940d82894a7053907824b86f751555b3f9348b9739d7b893b2e9. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:49:23Z), 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/ZAA169700591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffd9de99125f5df06dae16bebf6208ab65f042bb92200cf9dcf6fa0ebf348240. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T09:54:14Z), 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/ZAA160000367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x517f8dc3528e59401c2f840c7a6905e0b984f7fdfc8ea01ec200cb0b52631821. 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/ZAA160000368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeefdce254dc384932c2a21b753ab459d5c8756f2eecdbc9ca340f48f719ad9f2. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:39:13Z), 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/ZAA160000370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed48ded9ca5517e07d854239d186775e0b8cf18ae38a95e0c3587a180c43439a. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/ZAA160100299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbf313ae192783b9955abc6833f67f2154aed97d8a005996342337f871bc6a19. 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/ZAA160500408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5154569f0fb2be3931badab19d2037ad302db3a3d9a50df9e0b69bc2dd9b368. 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/ZAA160500417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c645dfde3ce1c710136f10ff095d428ea9a36069a94013b4f89054e3836fe60. 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/ZAA160300577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x969bf855e596ce573291926c6e55c2e875b5026303c74afbd1da41cce2981e05. 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/ZAA160300579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x031da1fdca9c51ab7da4ff330d5bd17f3910c8c6b2ea9b9d02f73b57ed177777. 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/ZAA160300580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ff0ba0b2f119e16151c76553c277740bdc072609e80109817890767bd68e7d0. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T23:14:33Z), 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/ZAA160300581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd746dc576028381d8b5211b3a9f28e2738cbf8ceac11670c902bc4dabb9156dd. 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/ZAA160300583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x508b582cd2801219c90bc19ca594d8f509d6c5581706da60b86b8d21dad9859a. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/ZAA160300585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17501cec60938ee81f086d26947bd8e1bbabae10929c1768198e88d1874f1d47. 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/ZAA160300586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e17691d0488c6ae5a7429e6b0e2431dfce1cfb2979df7728b5b934b6f567e9e. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:11:53Z), 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/ZAA161100082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x434c0330f971ac6c119b8972967b79eefeaaf32682047394c8ffe3ce8c4ed7f7. 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/ZAA161100090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd51474cc9e536f51372efb22fa3a82fba08cda8ba13c5ca5db3986c776b68229. 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/ZAA160802067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35f5cdaba642ae258ebe7a5a9cc5c1c4749d2e1496b08943d3f49915c389f7aa. 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/ZAA160902325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98c8bf467d300b16fc8d3fa3164a2e5e4ba12694f0334f7a1849294e067e62dd. 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/ZAA160902512.
The Best of Tau Ea Matsekha (feat. Ha Peete Kea Falla)