Jon-Yakitory (stylised as jon-YAKITORY) is a Japanese Vocaloid producer, he has worked with several artists such as Ado, Shiyui, & Glim Spanky. Background He made his start as a Vocaloid producer i
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 0x49e91b06eebe33a7aabfe955dc7786aafe9c7d980dcfd4e9c7c207cfaa9d2209. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a96d3165-9e4b-4892-a120-c32ed5db9aae.json and https://artists.proofprofile.net/proofs/artist/a96d3165-9e4b-4892-a120-c32ed5db9aae.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 0x3fc1f159df0522a81b8f053140eff652ed35e8eaabcfaa0d699a7ab380a0e4a0. Chain 2 (Bitcoin): anchored in block 958496 (2026-07-18T04:43:53Z), 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/TCJPN2037183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x329e7b34705d5c075c579952f43793728ae671b681c82b3d7b82136a73b0785f. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:26:49Z), 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/TCJPP2115354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x649ffcdacf4df1b140823e7f07e80f5d8bccdd722f9cb3871f63dd249a84cf89. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/JPZ922107024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2630588e62f759e549fd365f3acc7a8a55367e8959b675ab3b4883884111ffd0. 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/JPZ922107023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8c2abea2a481aab5a8f0129704c8f88f1ab1151b64e4ae23dd7f14596b1623a. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/JPZ922107016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a65ef3e7672b2139e5679519d14c05b4db0e54636a534f3f1752be620caf338. 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/JPZ922107019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86ce079653ef57d5ed1ec2ad0d52be10c6eabb98543ad081ed06b0112d75fad5. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:47:04Z), 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/JPZ922107021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce6cde6e6598a3ac5996b5187cac93586822c81b67e5a91d1bc875c2d14f7b60. 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/JPZ922107015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8c2abea2a481aab5a8f0129704c8f88f1ab1151b64e4ae23dd7f14596b1623a. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/JPZ922107016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81907314016b37cb657c622b3434e30dc7aaa4a70295de316669ec2b4a75f89a. 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/JPZ922107014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a65ef3e7672b2139e5679519d14c05b4db0e54636a534f3f1752be620caf338. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/JPZ922107019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b08bd8590c88389a2fe70725f0449ef873514550ccd50e61351b8dc7d64c8c1. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/JPZ922107025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3d6ee432fd43ff71dfd9ec63d9c56fe8caef146f232ce05a11c2996584fe9af. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/JPZ922107020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86ce079653ef57d5ed1ec2ad0d52be10c6eabb98543ad081ed06b0112d75fad5. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/JPZ922107021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2792b0649357e0e883e29934f2a4081141894d7c239beff49f536af871dcca8f. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T14:01:45Z), 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/TCJPS2240816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5af69469eb3569a1033301089d1756ad1cbd052ebd790070cbdcd328a38a7bf. 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/JPZ922208125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31d8e089918b28e6226de1728e3b857ad52cf5af45a886652f976410a5166a51. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:29:31Z), 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/JPZ922213402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31d8e089918b28e6226de1728e3b857ad52cf5af45a886652f976410a5166a51. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/JPZ922213402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f9c3d119995e6a4323aa96f98b3586b4ede0df6a987f804399cb5989a1f1806. 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/JPA652306305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3c692ea161d766140dda8358fc5c0092bd844959e0145236f8697400169f8d4. 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/QZWFU2432120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd3f41047eefa5c62c493bd075f01897acded8f93076eaad9888fb84d02195dc. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/TCJPB2433361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x306ebc45800073a1607d443673fde7801d6f3085da9cb4fc29a7546753d35c9e. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T11:37:32Z), 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/TCJPB2470718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8795395841b0cdfd99b9b006e408a6522d7e72490ba54761378a3edcbedc27a. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:08:24Z), 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/TCJPC2400891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8795395841b0cdfd99b9b006e408a6522d7e72490ba54761378a3edcbedc27a. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/TCJPC2400891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe40d9dea625973339b4a4c5773a7edf478dc624a564c6211ff0ff9764cf07df8. 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/JPC402405015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe40d9dea625973339b4a4c5773a7edf478dc624a564c6211ff0ff9764cf07df8. 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/JPC402405015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe53063c0b484254d7197e19da43d156d728d23ed6eea7ea4b70273589916c5b0. 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/JP92Q2501854.