Toku may refer to: People Name Toku (musician) (born 1973), Japanese jazz musician Toku Hime (1565–1615), Japanese princess during the Sengoku and Edo periods , Japanese actor and voice actor , was
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 0x4cb8bd9e21c22b9fb543531dc714e51052fcff7ddb41dd4afa2b6bfadcd9fd15. 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/fcaaec79-44b3-4164-85b5-43d7b04e1273.json and https://artists.proofprofile.net/proofs/artist/fcaaec79-44b3-4164-85b5-43d7b04e1273.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 0xdf960d43452de28dc55860556214248b3549568636d052abe6b7d95a01ff262b. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/JPSR00007381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ec76714914dd63702f95fbe978449dc40e1dea5dbddcbe41a51ee76f7018996. 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/JPU901501378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7c158cc4c16971fad9ac7d563a1ae4c6f751aa01a967a6125abd0aa38485f5c. 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/JPU901501379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b49f6b305e9ab309827698508106a39249da95c92591e678c2f1bc98975c064. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/JPU901501354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1509b98ac8730df4053ea717cf9f6c2005cbd50c8a5902969667c21b1717c7f. 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/JPU901501380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f46a5db05d4bcfa098dd83f78c6dba996f7fa665e27fb926118cc10c2c0642f. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/JPU901501381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9db6a2418b3e9806c83ffe562d85217aea397f9b464fb8416c6acd15f9d457e3. 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/JPU901501382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x531e54a9946fa3186efede3373f582fb6d85759fd0c83a5398e90bbce55cd8d9. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/JPU901501383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x058418efa76107e98ab71ed7f18204b3ae8ebf51e206482cf70ef53fc59df2a2. 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/JPU901501384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d408d719900b472563a70da9ac8501b40f51d63ea095a802a2ee487d9afce96. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/JPU901501385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2de94a2206fc5d4d080534d74c2ed1da9aa633db3b893bec748c3824676f7ad2. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/JPU901501386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59c0ce574f2c402dda39864c0a695392bf9830bd66eb3a63965b1f9bf354cb0b. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/JPU901501387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ba63bb79caef339234389847a8cc811bfe13ff2788eb024a968185fc418622f. 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/JPU901501388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2015207b734a7b533e8626d0d3b819e9fd94919cd63d757cde2a5387cc6074a2. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/JPU901701368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac75037acaa143126ee921b9fd80bbab9424f5946a46798efe1071428a2ed2f. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/JPU901701372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb538eca25636276307884e397bded43a60c8b725fe699deea5417d7ccf207bf3. 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/JPU901701373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b999a51ceb61f0fadc66bda3eab42df79ab2e27eb64228eef87285535325cab. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/JPU901701375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfba9bcf9034e364c9f31c2c63ee95507ad4a4f9206b6994c618fd6063ce63833. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T03:52:09Z), 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/JPU901901896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfba9bcf9034e364c9f31c2c63ee95507ad4a4f9206b6994c618fd6063ce63833. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/JPU901901896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf1ec0033d6c4f9007d948437e9ba051ed3274bd15d0a0f219410a0cf7c06c0. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/JPN200201861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacdefc446fa7b715e4b453298e1ffc7c173e06555de207a46e4e1ebf9838d312. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/JPU901901892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9278aca70766e89bb25a55d4990a623a0d2330963c76e3f2ff025bbe7f6edcb. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZTBE2424695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc181dcdfddd7b3d69c2aebef63dad4976dbee3c39701eeaec8016cc47473c508. 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/JPPO01803465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb980d62d03192cbd03da6a0b4df3045e192e134bd86fafe170ccf1e81e4eb5f7. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/JPB600418609.
3/6にm-flo loves復活&新曲"tell me tell me" リリース!3名の新lovesは誰か#mfloと#lovesで回答募集!まずは豪華41曲のlovesをチェックしてねアルバム
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb980d62d03192cbd03da6a0b4df3045e192e134bd86fafe170ccf1e81e4eb5f7. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/JPB600418609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95eb91c554451dea56976803b59f94157ffa0590c92ed5d2635a7a4869e0eb82. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/JPB600448703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67f8d780273fc370fdc2abad9c9504011b7104f25b1fe8a030365f1ad2a9f0b9. 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/QZFZ62400501.