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 0x5b8b44b14109a21b9770da0c200ecb6e99159ea9bcf95691d76fb3dde4de0783. 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/4eb67f5b-05da-4ede-9fa5-a1aee6ffa6b6.json and https://artists.proofprofile.net/proofs/artist/4eb67f5b-05da-4ede-9fa5-a1aee6ffa6b6.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 0x94b4cd31522830e3748640977d95a12e2e5b4ea73c4b7998b8062ea4b6feae47. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZPJ32245082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x830a0a4c02d6c5f86d15269b5a660cc7dd3d308758e03cd5caecdf5f97e53dc7. 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/QZPJ32245083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd51f418c5bf4407de491d60bad0f991756092369c695d1994510d43d7e154d9f. 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/QZPJ32245084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1da0ee6763eb61b041e62b088cde621b2dfc22c819b3d047206ca152e09b6da7. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/QZPJ32245085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb51cce42dbf1262b8d5c22885c4731397d618f3f9545f620c24fb02e2593fc47. 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/QZPJ32245086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3df96d9983275dbe500c1c804ba39e5895c47ccce79a3a274d8459bf16bd2a6c. 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/QZPJ32245087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x792f5993fc3c385d9f2114f776efa9109ce14aee4d137ff4e061071227aded94. 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/QZPJ32245088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1509dcf40abd164fdbaa9b4f08c12645f248e48d127b6994c8e6b7fa5a0bec76. 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/QZPJ32245089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66a6f45d57e5a3ec1e71867465b4f3b636374fc9f988936aec00dd8a3e2efa9f. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QZPJ32245090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1200cb85243fed07e48ae37f9a3010db012ca1ad21d5cb72f3361e969ffe82db. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), 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/QZPJ32245091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf90327f41b60c634b2de9caf0ac7d171f059222fb0544cd886a312917de2ea74. 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/QZPJ32245092.
Wallmarket (The town that never sleeps) - FF7 LoFi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7076ddd92cc474b402d495ed2819b366ad8dc69071a7b535645e6dd20c4e0d9. 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/QZPJ32245093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc63d4550fa32f7abfadb55f71d852fd03a81801cdcdda20da47663da56735540. 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/QZPJ32245094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84b11876184ef5676ee8aa59d4e9f9f88d2f7f0e1f36ea6894c741ad552ade47. 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/QZPJ32245095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde1740dd47aade59aec5a90f1fe00cb513d66478e69ff2ca5638e7e209fbfa81. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/QZPJ32245096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0632caf9f507366fe3abf438623eb00f16aa54562c91a74c7c9659fe189646dd. 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/QZPJ32245097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x551d1d430506a3e4a477c04821155aafddb8e4c137cee6f0241a65fdc3ac8eaf. 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/QZPJ32266637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c39d43ccb34141fbc98ab640edfb6526fbe5fe35e9439376a2f01e83be7fdd4. 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/QZPJ32266638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2e001aa331b7da6499375ce7c8c99e799e84f4d9f347d93e1d40288cfa191a6. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:42:22Z), 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/QZPJ32266639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3187e2a6541901a02c2a87340882759b4e6a70b3e3fec3320a1bc79abd04e831. 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/QZPJ32266640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbae82d7dc627b4d0b66b844b43b91d31d8652f3101816f982a6a1c624ee0b8d1. 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/QZPJ32266641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb886369fcdbba48a175fd106850c48d35f4ff4beec4e8763608f0e3334be43. 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/QZPJ32266642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02fc6004ecbbc10b28f145afc59b957f477da402c8a91f7a422f96d402e54b71. 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/QZPJ32266643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6446ebbd6484d0761019e010a51aed41d2c9f1b4fdeb41d5c1f019a8873ed7b9. 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/QZPJ32266644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c0bd501937ec8830c075c71d72b43395395b76b3d2a88c35ccb8f3a6aca7987. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), 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/QZPJ32266645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf12d9ad8ee6a9f8534a23f157c115ba8c4900b6f8a93b3e72c4e318bff26fc5. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:47:01Z), 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/QZPJ32266646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4f8332bac7f850aac3cbd1fc4c26c79bf1cea5248a50934f50cb297b28fdf36. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/QZPJ32266647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5666777796ecb044954a47e1d05351f6432744032e7cecdb4f2a94a182846158. 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/QZPJ32266650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb64e30c37a2203257082c72ad093abe81891ae61f0feb837b5c65dbc6287b7c. 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/QZPJ32266651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf115027db9fdacc561fe980320d97f255bd7cba6931417390efa9785de18f829. 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/QZPJ32266652.
Final Fantasy 8 LoFi - Compression of Time
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2359cfa017e7de5130e098c108554f81829aa34694d758781d6089ec9450054. 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/QZPJ32308523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34edd956b9bd1197bae15555f7b644e9ac229188569a3c1118c4094435a1f608. 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/QZPJ32308524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eec4af2309d2f1f6210c7bbe916017229a584447e6bca8143698e9fb38e1a9b. 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/QZPJ32308525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b7a20de795790285ce93818c7bbaa9bbb62081545f813d65a56b4529e9fb5ca. 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/QZPJ32308526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36b88449124286c715f2df99d10246a8858560b9085ec84a4a9d48516d1f27e8. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:19:32Z), 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/QZPJ32308531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16517866070ec60e9c19b51e46909ab61809a64678500ae31353a33d220f8e46. 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/QZPJ32308532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf53457cbb4053a7f7361556f4da9b992c6cd1f5ef9db1175a3d5878289d7849. 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/QZPJ32308538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc23fa8b65ad5ff3d81e5016c2913f65d6f719e9dec62bd6f34c2834ae8bee3a. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/QZPJ32364065.
Salmons Theme (STAMP) - Final Fantasy 7 Rebirth LoFi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x645e991e88dfe390b0ed1f6c5c48a5f0ee60d79a55f0fb8e055d0c4925bc7046. 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/QZPJ32364069.
Final Fantasy 9 LoFi - Melodies of Memoria
Main Theme - Lofi (From "Metal Gear Solid")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7422d0b5fc7c670c8c9e5b64eb697b7f995f8da9783af4130c3e05dfb815e17. 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/AUGBT2454384.