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 0x7cb5f8cdcaa5e8186cf1f0af34a9ac6e76ebc4d6c0f44e8ddb2dd4cc78876cfd. 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/94cf2d83-8936-4083-872d-fdb667f76f55.json and https://artists.proofprofile.net/proofs/artist/94cf2d83-8936-4083-872d-fdb667f76f55.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 0xb5295c5e72ddf07cd55eea63b940c09e54240c0a709d9bfb33b35c05aa5c599f. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/QZN882394471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6867f1b02d098c1231782caf4e0db28606a8a97c5e98feeef689bce298cb5ce7. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:29:34Z), 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/FRX762111895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7bd2256eeebbb7588160f3a1e11771828c0de6f85910f3e93e6a7eaf41597cd. 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/FRX762111896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b70d9a6f2d28a99481800a6c5922a16b88e6453ff4280c3137c907c09b54712. 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/FRX762111898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc582871ac14ec757650d4bf5aaae15fe1d594e6ca53736fe104d2b1dbb8570f. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/FRX762111900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c7b98dd778152a58f9b60f6ca9be1923180d6e6f168860fb6fb2f283982a1d7. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/FRX762111902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf44664d1f6164135034f2137734f20bb70918155f4f4ba8cbf84109bbe6aec1b. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/FRX762111903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41967be9704f6cdadc3b5f062c66977b9acc3abaa96c982e852022ee9bfd9057. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/FRX762111905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x079a0fa187bbe99240ca477fbbd2c351abc75bba1f8d2d9b9d5ea402242f00b6. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/FRX762111906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12f11ddf9b6aa26707d3e5d6c50d4427f72f9ebcd6a8a855a66f597c11a280d9. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/QZN882353880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda635c695b9bf0bd26269bc43e1fcee6a0fa2cdbd04914649028c86a55db2807. 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/FRX201728006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3008cdbcb141ac4dad6a27ced3aafe8108c2e350c6423efb6f2a16b6481db23. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/FR2X41915632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96184e43e26fd9e38a78afd63deefd2ec49f77410511fa20123c421822bd0e08. Chain 2 (Bitcoin): anchored in block 957671 (2026-07-12T07:35:31Z), 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/FR2X41915633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f2ecd41b8ab95803899cac2a5f2f8c5ec7adce06d65b5842a6ed837fbde26ac. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/FR2X41915634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb9421f27f09945b838ab2e4b364fbe94107d6b4b0815e9ff5f8fb9dac15f8a0. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/FR2X41915635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c3211665bcb8df814ff47078c8af6d47552f0223d2f88ac2948a98c0709fd3e. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/FR2X41915637.
Trio Ambisi, Vol. 1 (Pop Batak Platinum)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03306d340876948beba04e685c69078192b24b6766b650b0abaa0d2f10dc24b5. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/FR2X41608743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb57ce103f8ee82dd0f63c177331ddfa50f29048c9b18949eee50b7bb53e768e. 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/FR2X41608750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf93acc8fe460ca39ffaaa178caba5a9f1c499cfc8d3a9cb46376eae139a06c1. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/FR2X41608751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dec406746316dbb276aa5c9f3e3fbf5bcc7147e1370fbc37fbda50a9e45f89d. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:30:28Z), 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/FR96X1601315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f4ffdeb5bb656435ef858d6fd20205cde9a1089d6e5e2c344ae9260ac9423a8. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/FR96X1601316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df849d0303e91224d468daf8742d174e4faa16ea42b1a90519039aad77df1bc. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/FR96X1601321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44c24f4daa76b42a244f6a0c4ac334fcf83305694ea75f6ea72a1f654dea6199. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/FR96X1601322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39ad6137c7071bed08f452ee730e67002a84d6a461ee481158936d5d37f6e7a9. Chain 2 (Bitcoin): anchored in block 957676 (2026-07-12T08:20:25Z), 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/FRX201831857.
Album Nostalgia Kenangan Trio Ambisi Ku Cari Jalan Terbaik
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf6e33953166e509ac75a4e5ca8ec438f0329066adc2562d01b610b8985b1e20. 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/FR2X41915639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa42b0e4b59792bc47d234a4d5b98143333baadd19679b7d4a1e1c814399fdefd. Chain 2 (Bitcoin): anchored in block 957680 (2026-07-12T09:07:22Z), 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/FR2X41915640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce8c37b8641c584a7cb555ee653fc052e0902cae3338988b913eecc6e15d9e26. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/FR2X41915641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba7acfa771d449bab8607f86ad35b4666f1636af6425cdd51d453a6e9672a145. Chain 2 (Bitcoin): anchored in block 957676 (2026-07-12T08:20:25Z), 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/FR2X41915642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbacf82007bcd384fd9b6352809e57f2726840a80cb839960dd1a34a94818b480. Chain 2 (Bitcoin): anchored in block 957676 (2026-07-12T08:20:25Z), 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/FR2X41915643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92e91d658085daaa6494db5104878ac42c9990cb1c38bc2f5ee58e7d5a3a6fd0. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:55:13Z), 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/FR2X41915646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8309aca4f7acaf2fe80e455c78827523d770b7e0e58b46478e92ae3f6f32d3d2. Chain 2 (Bitcoin): anchored in block 957674 (2026-07-12T07:50:41Z), 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/FR2X41915647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf7c740802653b789482d0930bc7e901780abe1403d92f94bb5498eb5b5623ef. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/FR2X41915648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2eac0fcae6a9760dabaa1a1d65bd5dcc9b6e561e0cb28bac76c04142521b966. Chain 2 (Bitcoin): anchored in block 957680 (2026-07-12T09:07:22Z), 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/IDB202002247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcab0b45cdc8783b71fc6f0f2b7b5220235830f1cdb7f56db327e43f064dbd79. 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/IDB191900058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x328ac7b39fa28fa51bb238fe8d7f72e05eae42bcfdd8ad4b486f5cf41c1bb712. 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/IDB191900051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb40aa5c2ab458d080a5de091f1f007dea6409c81e382bbce947bfcaccff42cef. Chain 2 (Bitcoin): anchored in block 957671 (2026-07-12T07:35:31Z), 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/IDB191900260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d9fedd733500e031ae7c96664023bc677215216599e39e0a65abf60c2b293ae. 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/IDB191900444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42316d63336cc54eef62209bce75ef7704760fd12fe52d0ba64473a608bf474e. 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/QZN882570131.