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 0xa8aedfb0c187b445dba6b44fb49d8ec64217e488298e60ad713b5c91ed4ccef8. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/67f0ac98-fc55-48ed-9b56-892104ac9562.json and https://artists.proofprofile.net/proofs/artist/67f0ac98-fc55-48ed-9b56-892104ac9562.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 0xd2db2c3f883140d1ae9bfae2954cc048d274df5cea78f6537220c42acbcaaf5c. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/TCACC1412455.
Grateful (Japanese / English) [Studio Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a6c45d6fea23fd3a417e0cad5b7905e73e570139d915c0c11f510db4aec5ffa. 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/TCACC1412456.
Your Love Is Freedom (Japanese & English Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6291207e7f5a513ff4a2d587dd27053e06c7e37da073f402a256311be4679f13. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/TCADT1830054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb6fc0b01b47838676d22ae0908c14faff6e4865f513cc2906b2258225679225. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/TCAEE1984758.
Resurrection Power (Japanese and English Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf848e16c63c135f924d0ac70be0610eeb2b569ec9cf7af135f7c3b946efdf030. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:40:22Z), 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/QZRP52277141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c3911526e136a413546beabb97cf9037cec6b4b3de399665373e510fd1409b6. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZRP52277143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cb8ce12ad734f4254f0207bc4b26b8d9443a3faf1478545c775e4da6816d1d2. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:58:16Z), 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/QZTBA2391163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffef53a56481d43b4db694d3bb5d9a4663f6b6d7df6d7d43d4c94bc15bb29725. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZTBA2391164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39559b61b155ad4d8cc8e32e98b0d0a3a5e383b0cc969a14473221e293726b6b. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QZTBA2391165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2fb01e26c5749cb65507c1e8c10669ebacd83390d0a12ef69353e1ddf9d8aac. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/QZTBA2391166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf87132bbc9a62d34a93b32f0d262d64089f6feff9258260a3acb3c72a022f254. 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/QZK6N2533641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb327cc937d08ff69a6c325ffb6348b5501aa6e61aa9128e8489deca6acb0fd7f. 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/QZK6N2533642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb9130c9f61d9a39c2b6f06eeaa77315cbb6e8dc7bf27c8950f66c4ba403e62b. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T18:47:44Z), 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/QZK6N2533643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5e2d9d3f6fe00cba5eaaf6e78ebd88923a192443e0556cca50a6e04df093b6f. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QZK6N2533644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd76d4cdb221d5d8fed726219eeaeffca45c12ec63498f834be57290000b5f24. 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/QZK6N2533645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01070dc8f81aba2d997c299f5496d30b66d591ebe66de9e54d25579067035c67. 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/QZK6N2533649.
Praise from the Rising Sun (English & Japanese)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa554b1c8b91f8d051a9d5afcad4c1ee30d8b8dbcf20184e2c281c58f6e65e46. 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/QZZ7R2595229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe15caf086c314fc18d6ee053c2fb635ec10b100790421096fb8b8e65b68d162c. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:01:47Z), 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/QZZ7R2595230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa13fb7d9f70a3069999fc4558679c0c634b3e919eff81a52c714ac9e8c74be. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:55:49Z), 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/QZZ7R2595231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93282af4df3f1a812ebc023d35264f122f1e6fc07d806cf4c636ce7443345340. 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/QZZ7R2595232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b61796b68c887010b72b4eeaecba4267faad810ea39a4a099179cfd346a0536. 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/QZZ7R2595233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf59afe8df154f173deebd5b7ec7e29ea6fe83d0e9bdc8782a62de47661e6cd95. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:25:24Z), 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/QZZ7R2595234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf43ee33bbaba03fbe4fb2adfee27a284fa87bc2584671c5ec50f79f812fb173. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T13:49:28Z), 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/QZZ7R2595235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22ca3a267461b5fe26beb802ad715d65cd139b0d7d1ce3616e10823e3d38b3c5. 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/QZZ7R2595236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28b5fe79eae4a430937b8c31ed61dbef347b80aed9e3a3a2053ea2a7176370db. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZZ7R2595237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a322a3b9f1e8a5e399cb5231f478c17dac7c4add3ac27e223b7d0b22c1a660f. 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/QZZ7R2595238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25fcc0e89a5048b1542534cfac7017d256511f2c547404d023950824b0ecbba0. 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/QZZ7R2595239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ea1a9dc63e6dfd265af8e4afcebea60a0e6c0fc93f3175f67ca2fad98ab6448. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T02:34:08Z), 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/QZZ7R2595240.