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 0x2fd4dd77ae3e1af5931647b4f45d5c3a322a170ae157e1deb70866c551fb6e0c. 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/4b39e8d6-1cdd-45ee-bff8-d047de7be06b.json and https://artists.proofprofile.net/proofs/artist/4b39e8d6-1cdd-45ee-bff8-d047de7be06b.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 0x20858cdec5a8fb4bb1bbf4ff940c24d5519c7fcfc0a6aa397753f5f939637a63. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPWP01570724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce1b48d9c446ce1dc53d4a3c9a00c2b39f04216e8387cad25e62da3a2650951f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPWP01570725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b095901016ea8f3753374ecbac6d1f4579fa1e6e72aa75dc8e85efdfba29827. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPWP01570726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x444129d9fdb071d8a291fd3c96714c127d0074e5792f71f6cb2383069b1ff849. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPWP01570730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bdca6df7713c05519654648f21b474682f0b2964b22016b7a118bc9d06ce4f7. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPWP01570731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29725ef462d7708108e3c26438bc5976affa78dccaa31a169170d04ffffa1913. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPWP01570732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13d7dfa0adbda63222ebd96ff7d217c8040fd0dc9d1190731e590482e593919c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPWP01570715.
Beautiful Express‐美しき瞬間‐KARYUDO (2015 Remaster)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba040dee3400d89bbb9aad155c9e260118f09110e09fb41ad558fd5e7a7e6746. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPWP01570697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddae04dbf59feae436a0d6942329dfdc47cf66be2619e83eb6ce76bc98b5548f. Chain 2 (Bitcoin): anchored in block 957198 (2026-07-08T15:54:54Z), 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/JPWP01570701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47d6fecf0a469095ef042aa627c29629c21b7d06fbad059497d250269e7d6fd0. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/JPWP01570705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98b6e1f427d273d37f4df358bdf6092ee2e558fa5f2523a67a5f119d759e2a9f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPWP01570707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x502a954b3a9ac613178f6a57035416da1ad98f022898ba2b300b6f8c5e558629. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPWP01570688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64bd4bd62cbb6574250d813eeed3363f6aecb61a341ba075a23e700a8041fc84. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPWP01570693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fdf9405cf00e6c6e3fb43d5e4bb9491b8010e48f2a76fdb0c0e92a571041ec7. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPWP01570672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40bc69e7d2722d284fb04136427a2027d8f2ac7dfd23b3317488f6afba0e4926. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPWP01570682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57194df337fdd029f07913dd2c0bf46a652b4e923169064b6e8f4bf53536bf4f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPWP01570661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64a2d193130615629c23edd8fafed88023239491ec4317e6ee7067d6e55f98d1. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPWP01570652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35b702bff8b63bc44c22980705a597ec2d92b524ec22d7dd14c6cd9956563d5d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPWP01570655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3239c4a8f62aa5fcfa7ea80b28365e8efb7c3ae830a241919429e6761ce3d942. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPWP01570656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7c4021020a6196d6c0014e6d774480ae7e0cf4ed3584bdc3600baabe5568104. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPWP01570669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31bd3dd1076678ff0d849929824085560b408afe5992245848a717d81a29357c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/JPWP01570636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8076d29777c0f88e58c1eaf2886dbe9a32d820ab5fe8ddad742cccda9610c3c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/JPWP01570641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf194e83d1cc6bbaca25f8e817db721b8385321a45edca318d5b47653cef79af. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPWP01570645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f4739cecf8ebecb33f699a1b6c4fed6d151b6497725013e25335a191868a48d. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/JPWP01570649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3825065556723e9af79f28e13baa5d338759f970f2cdf4c0197ac0aca136de84. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPWP01570622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47f8e9dabf7b742ac58d987605dba85e98ff61c1c9c4f5886170fb3f2820a140. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPWP01570623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a919041f6bd490e9bcdc71d7520bdbc96a2cdbd589b709c3ec3593167ce287b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPWP01570625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57dcb8beb76722ffe9917ec302cb30e5ad3b6996ecfb73431d83158482cb09bc. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPWP01570628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff173060c605754957ba2d4eaac04acecaeae5f3af9942c59d9eb3658ac0c90. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/JPWP01570629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ca717671e70b7de0d57aa9f1357bf4cec8acd25bdffdf859634de85e0956c45. Chain 2 (Bitcoin): anchored in block 957212 (2026-07-08T18:33:44Z), 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/JPWP01570631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02bbed78e437cefc9fa116f92ec4a311f952c38d503846bd01dbfb2b7412170d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPWP01570635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57dcb8beb76722ffe9917ec302cb30e5ad3b6996ecfb73431d83158482cb09bc. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/JPWP01570628.