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 0xbe769301c816b5b7f0e205c2c0af23df39b8b5f5b30bbbc8f0eb82c4f897d77e. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2a2c35e9-9f73-494e-9617-e0ac6bab4762.json and https://artists.proofprofile.net/proofs/artist/2a2c35e9-9f73-494e-9617-e0ac6bab4762.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 0x5e2544c3c7f98bf655ee70231eebab432db78ed421378f26489a411cebe2b28a. 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/JPA602200045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4203137532708eb491213fdc661fca3bf85f95a830a2eecc9034cd0646d044ea. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/JPBV01320721.
雨の降らない星では愛せないだろう？
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f8c0a24e579708563d9861c5d4a2fe3341452df550cdc8618ba4a15d1f534a9. 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/JPBV01320722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x732bb4b8668325a4140cf7f0627c868aa7602a29cd2cb0c787e8b4698ed251a6. 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/JPBV01320723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x421bcd5a986646a21c49e13edb60bd980a984de09f8f7b5cc684cbec1e4a5623. 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/JPBV01320724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x974b6754f68a74cd5c3edbf67412db539ecc133ca2b66879dce84bc03ad1565d. 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/JPBV01320725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d620632091ab6be87b6ace5c6984a2eebf6d7a098b7cbd195bef2bd3739cd20. 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/JPBV01320726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e53cb4c103ea5b6fb6d3a67bfc6a395eaba5274facb0e3acf4fa228bf609125. 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/JPBV01320727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x259c7be3521453502889382f9350d0f2c777e1a1f75f3667507aa766e016d6dd. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/JPES00700081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd78564ea5c2ad4239309597330bf4799e7b2a80b574a76e38494ad293f71c085. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JPBV01320728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f9b0be27c1aad056c948b36914d1037c1eeda1574d20c0e46e193fda65b2023. 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/JPES01100161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ccbfc238ce6a98e8819d7cf4c4e86fe122acfaf3fdbdee074a7c698cd6c7b67. 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/JPES00901642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40fd8009b69a7be0ee95a49307b8c8c9d6697cb31fde965b9a7b0040833013b2. 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/JPBV01320731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63a02614404967c9b4acb35fff6ff34b2a8120d43166132b5e37d44d8813bfca. 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/JPES00801502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1433c29c6d8d3bdcbb692821032aa61186f349b1e979aca9309fbe6e86d47dea. 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/JPBV01320732.
The Best of Kousuke Atari (China Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d3b347bd954d3e191dcf2128f790e9c54e6f65f0e1b29eafb3ded2ff6de1275. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JPES00502341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc8f14a54a881f742d924fea6964b56f8e580fd2fa10420381333d5ef77a996d. 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/JPES00700988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83c8e812cfa337bfe28727cb8fb5e8aabe5c348afbe0f889d015cd0c8d0bdc10. 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/JPES00702241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63a02614404967c9b4acb35fff6ff34b2a8120d43166132b5e37d44d8813bfca. 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/JPES00801502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x340b9c940b1017d8d88046496e5a58e159c1858e852bd5ff942a34fff890c206. 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/JPES01003104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e07c502e2c0417b4b3521ab857e25bc18ad7422c733fa5f7d36e272dfc50d38. 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/JPES01003102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2294e19912dbe384e4c64f9c5dcca98dfad98e5966052267995cf2bfc1432d0e. 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/JPES01101365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d3b347bd954d3e191dcf2128f790e9c54e6f65f0e1b29eafb3ded2ff6de1275. 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/JPES00502341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x259c7be3521453502889382f9350d0f2c777e1a1f75f3667507aa766e016d6dd. 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/JPES00700081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc8f14a54a881f742d924fea6964b56f8e580fd2fa10420381333d5ef77a996d. 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/JPES00700988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83c8e812cfa337bfe28727cb8fb5e8aabe5c348afbe0f889d015cd0c8d0bdc10. 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/JPES00702241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63a02614404967c9b4acb35fff6ff34b2a8120d43166132b5e37d44d8813bfca. 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/JPES00801502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a17636b4c47036e69d621114ef258873a93f1fbe4d6d89352ffb938d139762e. 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/JPES00702242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f8c0a24e579708563d9861c5d4a2fe3341452df550cdc8618ba4a15d1f534a9. 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/JPBV01320722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e07c502e2c0417b4b3521ab857e25bc18ad7422c733fa5f7d36e272dfc50d38. 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/JPES01003102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafbcd4c2d0039c0521939e2f8ca5e4a97013dccbcfeee3676b5651be269851a1. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/TWA471114012.