Motohiko "Toko" Hino (January 3, 1946 in Tokyo – May 13, 1999) was a Japanese jazz drummer. Hino's father, who was a dancer and musician, taught Hino and his brother, Terumasa Hino, tap dancing as ch
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 0xd07132ef50860b150466a615d7dea3b77265c0fab5199ec7568fe07956642a8e. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e8fd6fdf-c171-4330-97db-f4d8ce7d7729.json and https://artists.proofprofile.net/proofs/artist/e8fd6fdf-c171-4330-97db-f4d8ce7d7729.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 0xe38520898636a033857e40fe8faef32e19f430b579c6825512d3a3053108d62a. 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/DEAM89500018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5134213948454bdb78ea47689107b04847873f0521974d8f1da41a97dabf38bb. 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/DEAM89500019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6819949a58b9fc94e5cf1fe13e189606edf6b180f7d1833142e45a5fea21371. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/DEAM89500020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3497dfb5c9ab2f9295b76d932ec353407ebf640a30bb1a7aec1c8249b6fe342a. 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/DEAM89500021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71cb5f9038899c927ae2d9ff7643e3ca23fd5e521615a328dd5097906d3a6a3a. 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/DEAM89500022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x205a588d5a68f9d4887eb129dc645930ce01b4acc99fa9a8c8f9a0186a7435d1. 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/DEAM89500023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x798f6011d1f5a0b479ed80423124edfd5cb846c610e7cd97ac9cb48099811f0a. 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/DEAM89500024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d0905199d2095ee15bfba323bfd30a030db24b356d559b04d64ca0f59e738e4. 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/DEAM89500025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaeecf2b2be4f6031a157de326461fe9598c95fb4c881e139a6f11ebd567ceda. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/DEAM89500026.
Flying Clouds (Live at Yamaha Hall, Tokyo, 1976)