Hitomi may refer to:. People Hitomi (given name), a feminine Japanese given name Hitomi (voice actress) (born 1967), Japanese voice actress Hitomi (singer) (born 1976, as Hitomi Furuya), Japanes
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 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 0xb13f4aeba5227a32596d26fc93dbc319101da7e47d23c6973259590343f099c8. 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/8700bd03-a3a9-4567-b6d7-07819d7044f8.json and https://artists.proofprofile.net/proofs/artist/8700bd03-a3a9-4567-b6d7-07819d7044f8.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 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 0x35fc4836f8ef69afa72efc1651242e116aab2a5dd64c159569fcf88d77257886. 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/JPB601162501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b6166a65dbc3a8152c224a6a10bfa3407874f80b2e3e561037022a22172cf8. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/JPB600924701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e2b7371256ee949ce8f86f1c4284fa28666e4f52054f1e02ef23b542b0b4ca5. 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/JPB609520301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8037837fb9fcfa3d44c83507efe06989668bbb6d712fa4a2d69ff9d76032fa0e. 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/JPB609520701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9669c28dfbe3f8eebff0788035f70d6154141f4e5596df4888635fd13a7e4b81. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/JPB609620201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45af97170b82d384bbe4bbc718e17daafbb7d903093668604219f068a95de89b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/JPB609620901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaf7e6610fd2b9fa8ff26c40809dd4c73b50869ea083dd4b179d0ea0b13bc888. 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/JPB600131001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c61d78debf702233bfc422291c1d06f98a36afd20e18dcb7c4c9aa6fa8ebd22. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:00:36Z), 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/JPB609833201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7253e9f463f30ba994512af84289fe2c1b0f034d735594a610190cd2442f99bd. 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/JPB600647904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f8a21afdaf60a9c2a98d36510ad4cdd5bbb754e83d2d4fb957b3d0d60f770d1. 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/JPB609926706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d5eae876ed934d6211df36bbebd5dba02f600f8bd9f53408d4543127924da32. 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/JPB600159205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0740dcf7483d858b8f29ecbb754cc8e56dc0a3c257a2075c06160f05d622891c. 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/JPB600044103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8781b947bac9c55cb4f89e59b9c42d2e57fde0ce2a2c4a0850a43073ebd69ea7. 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/JPB600027302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee262ecdb72c6bfb57c64a59b9388b718ba6ea6a0f5df400d3ec87b00e148e22. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:01:09Z), 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/JPB600044104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2bc3558f21c685eccec687ffab134ac2485594e1cf79a728aabb9210d60c993. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPB609703502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12137f00ed193bdd76db3d7a89a741f1d5be8ab6338160a0b10c359f6031832b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPB609723908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67396ef397b1b1a07c9ad708ed8b644e437044bd615fe40b539f73d81e4f2524. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/JPB609723910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5558f287712db1c7c6f095da2f4bc4130bcd203a3817696f1cfdca9e023a8e98. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPB609621902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b4e0fdf468ea671516023cf2122a30ab2936d6842b2333c09fbbbedab9271c6. 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/JPB609620905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ff892592851b049f52b73f4da5669b8c4a4aa68f5ec96e25d99aebd61f56980. 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/JPB609621907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x576cca6227d03155e9803bac27b504ed55b9d8c33d9807de38b62891db36772c. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/JPB609521501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89cd75fa6d406b655687e765f6384a122e7a6d225fc821db56c838f930bec0ef. 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/JPB609521506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ac8c0e957f3e4f38d6370f6beb08387ce6c0d72f987c5f1034e0245258f1135. 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/JPB601901789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x249dc7341abc7185d2d036a9914fd5eba5f5f9b126fa8a1e93f375cd396e9687. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPB601401548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83dde178c2d34337e4f2f0430581ca159d8833494096dd15db4158d1e7247965. 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/JPB601305277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaf7e6610fd2b9fa8ff26c40809dd4c73b50869ea083dd4b179d0ea0b13bc888. 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/JPB600131001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83dde178c2d34337e4f2f0430581ca159d8833494096dd15db4158d1e7247965. 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/JPB601305277.