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 0x615b530a2c4e75ee2bad7fa8135493cf0dd107aafa58a97b16a2e912df107419. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a0246935-d7ab-4440-96e4-01ad166f8b2d.json and https://artists.proofprofile.net/proofs/artist/a0246935-d7ab-4440-96e4-01ad166f8b2d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Blessings -in Yatsugatake Kogen Ongakudo-
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 0x46add6cc108d8b39cc046b2cf8060ebc457448dbf2a10e556862e9ca47724809. 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/JPB622001353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe01a878573e43b9978469060e937f8f55bbb224d195baef45d100f4c4229a15. 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/JPB622001356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10b5b53d3fd6202d606b3ca1ded0aade1471da50303855de53ea6b5f8eb27621. 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/JPB622001358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09b4b3cd9f57fdcd67b299c9bc7a5f1f6bb6282668522ec6e74670bce1f0cc43. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/JPB622001350.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe25a789d3907be5d9985d303e03ff2541566e9a525a96ded332f11d16fcad45. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/JPB622001351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61e2f0adc06af9fdbe64f35610963e5aeb08d91e7726ccb637102c1f70b0b488. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/JPB622001352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f3efef6d998887974b6e23badd9561fbdd3f73a6528cf92bf2597b762c0f015. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/JPB622001354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a7fde85142d695e30b9bcbae44a72b09d7e23131680ae5361867a96bfdc3ac5. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/JPB622001355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfed6ca5e211d4c604921a59a316106c7da7bbb2855eae413254a3955c3b7e345. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/JPB622001357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe132e2dc922ac149c95eb54b4e858b1a9f918e42f16699cbcb0f9aa1e3d2f4. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/JPB622001359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5bce4ca338f5ac212d5296541ee34574ad3adf684efe319aa5fefd1ed1ade42. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/JPB622001360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3301ad28e4f42dfb64d57c0d598d44f8f4f3ed074e7aeeeb30cb87e3d28801ff. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/JPB622001361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94446782c32df50ef86991378d6301c4b9473c077386ac370dbaba22557ebc6c. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/JPB622001362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34fca546bef9b4803d111dabfb44a96d10e72d7d51e41305fb788ed9ac931f2e. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/JPB622001363.
Another Blessings In Yatsugatake Kogen Ongakudo
Japanese Suite -Spring- In the Lutheran Hall Ichigaya
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeb993c0a423739533173b1278a8c823accc3afd55642cab4e77ca51a1df7e93. 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/JPB622200015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30354a1dcaf2e694bcd15619925fe5e73f4a7c9783226cc1fe907299bd6aa6ad. 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/JPB622200017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2004843c6475759c7aaa9f3957721b5994c0c401cda338a2f2b6284dd9b2eab. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/JPB622200022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9186792b70fe6f9063864a9c341bec1ce1bfdacc98ac0e5eb8ebad7e003725d. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/JPB622200024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x739b8ab221aa9356710a25b7480bfa09676ab6540fac381fc9dda0bb964d68b4. 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/JPB622201257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x879e28cabaf184fd2adf249131437930889179f7d7f042f21e31fb936ce8772a. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/JPB622201259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaf6f0cddb13ab55652fb5b8707704d58a1d392c2ef6ab544f662b0c93b35a03. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/JPB622200961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04ce7ffe8cfd4f90be7762df8611fdb198557ea0ab9f0222e1b51f9971efdbec. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/JPB622201258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b7b171596020038d698786838236ce120eac0bcf84e4a82aeeab054e2ebbfed. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/JPB622200962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2abd4fa38b190c6ec42a1a63c7e76876c8ba8ef0eef3dac5750f51625d8f7fc. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/JPB622201263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54d0de1c9874e1935b61a29cd84ce6e482a1ea84714207a4fd291751345593b8. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/JPB622201264.