Yokoo (written: ) is a surname. Notable people with the surname include: Kazuko Yokoo (born 1941), Japanese diplomat Kazunori Yokoo, Japanese actor Kaname Yokoo (born 1972), Japanese golfer Tadanori
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 0xe9f7d471661290f89e519743d638b31a5fbdbf5e1d45f0cdc5be1c15bd74b421. 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/cff58c90-e75f-4ab7-bd34-05ced6aec6e0.json and https://artists.proofprofile.net/proofs/artist/cff58c90-e75f-4ab7-bd34-05ced6aec6e0.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 0x135468a40bac18a4e7dc2791ac04a22ad0548f629f7ff6b62bc8b1f4f2e24d56. 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/GBJX36116138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39aa36ce58b0c8b3166d9265b5baaf977bcc583150db4d7a8abb134f5f6d99ef. 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/GBJX36116139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x459b049ea094dc1333cca0c8863f62c4408a039b62ba01d3c70c54b3c66379a9. 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/GBJX36116140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8c7ecbdf56cca00c018fc551ac37b846b7cfc8c34a1a9f47e421fbad22f2227. 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/GBJX36116144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc549b03619b6fa56100b1802f7402c54c2aabd153cbd8708478dc28b6957e9e2. 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/GBJX36116145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b1a3c0034bda50a00eb04d77f2f96d8d968550390ce2c7a377b10287ebb96d. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:40:57Z), 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/GBJX36116147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8fff019ca70f3bd36bde18cc6dc43522b6973c3f243e0497a7bd460f1ebc5bc. 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/UKSP41900017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81b665be3cd847e1845a5ea1587549d0170275a4c422d6b4d7d365797ceb1cea. 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/GBJX36116149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x163b01fa875f3b545977ce6404739d74bda1ad17299eeacc91ee1fd8037e9793. 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/DELF21502901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cf9d91167bc9f5d4dff0c4514328ee7b0dac9b2bf0afebcae2faff745d6d56b. 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/DELF21502902.
Break The Light (feat. Seabourne and Seth Schwarz’s violin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfea522d14857f3c3afa6c533e67d1daebf845c48af0e138de8c78b211b757676. 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/DELF21502903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff5479fe70b52de2f96ccd81e37533e5bc979d8e25535d7e13353e631ec82f96. 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/DELF21502904.
Himalayan Way (Francesco Mami & YokoO Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bbff3dbe84bae025c324ea4997fbaa7132498525af7291725e8b2fc45506aa4. 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/GBJX36116044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9f1eb7792ed05c0628a166528a92b46cc1e3e7be20d32848c3b2f4275125f0e. 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/GBJX36116045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9b0f17b3831b5f0ef74fa1d7943fd31bd73ad15708d8ef83af8061a07f4a8d7. 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/GBJX36116046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90d1f9a23ef555817b87209363949028ce2ba28d8ff32146730a31261157c784. 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/GBJX36116047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51456a63c33645af676e653f805366fd7bce3f8a3a967384232c3b3007c02e0c. 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/DEBE71700198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x659030cc95503f14241a7ebc9abca9ebc5c18daeec53b7dce90e597baf191b09. 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/DEBE71700199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0337ef687ecee894b896479aa3030174646ab8e98996848a61069497286f40b4. 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/GBJX36116001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb70c29cb123b76abf97e1df81fedf187f98c3e19a76251615cbd2679a8ab89. 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/GBJX36116002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ae870f916a7498c11c3b3c9ef83892b381b37e1b455b054626d6ab8e9c07b76. 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/GBJX36116003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x120a6be88a0f2468c7546819c74a918ab0ef2b2d9bbc6b8f44de917a7659f7c4. 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/CAJ4Q1300045.
Nefelibata feat. Seabourne - Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08b407baae661a0133d926cffb96b315afd39ad922fd43a865815ec52f1e6e87. 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/US83Z1638998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19325c5bb7e482b17d34d89e0800f17fdb7a580982c9fea1cc324a2616198cdf. 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/DEBE71500335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b6c42eb8bd3808a84b318bccc2137a816a5f1fbb950bacb7b0a3939eb2016cf. 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/DEBE71500336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7315fe7f294b9a9bd7793229298a918edcc87a3ed52ef73584646d802c9a1c8b. 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/DEH741303834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11f9fa6979c9612c1a45d00c6189c1c2a8ff993c98d8a9e3647df4da941f6185. 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/DEH741303835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9417140963989378e8002e9b3cb5e3cbbf9e9a72193654f03b0637f92b54cb01. 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/DEH741100075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62eaf46a9d93fc507a47137a471522b7f0619af041696c6fb17540764626513c. 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/QMDA72354740.