Wataru is a masculine Japanese given name. Written forms Wataru can be written using several kanji characters. Here are some examples: 渉, "ford" 渡, "ferry over" 亘, "extend across" 航, "navigate" 和
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 0x4704492a08591085e05b00685f8a62e5745f22a3c9d61146604f159d91093ed2. Chain 2 (Bitcoin): anchored in block 953765 (2026-06-15T08:55:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bae7709b-76cd-4543-b29d-4a3178efd01c.json and https://artists.proofprofile.net/proofs/artist/bae7709b-76cd-4543-b29d-4a3178efd01c.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 0xd78612b94eca77e841e6d6fdf9a250b1aa7415dfc6720f8f6ce4ae05d34a6cf2. 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/JPPO01620140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0ffe6717c5ad19fd44d369a1e1b5b9ad3b2ffbe8c4c72bdb841afde78328353. 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/JPPO01618949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x465efe7ec992156177ff01d4d500c99ca1e2dfeee737f050b7f993ca27704457. 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/JPPO01615597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf3e209a2f9080a7011695ccd319492acfe38d1184f33025941a99a50486b75d. 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/JPPO01620942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93312274ee97bf0ff0bc47130e2b9303ef09f31902718814174838918ececefb. 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/JPPO01620943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba6dd70bd1c13b55920e0042e9818bc70bd1c13ee5b734e30d6706f4eba184cf. 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/JPPO01620944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x750b899d841f43f7290f48c63e3efe0880ef61bb4320677856ede57dab7b6b3d. 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/JPPO01620945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3183f254cd49c09c403b7ca014ba03f73d97f798dce4dad20626ff59b0079b5. 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/JPPO01620946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d2cacf15e893d7f769d8935cdbd6e54c934abf2666a4b881a61ac00f8e07337. 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/JPPO01620947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8712a6897338ae946c517934dbc023738f91bfa7211fab051c24a11124714da9. 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/JPPO01620948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd86351e38ac7279e6141c4ef5e6800f6ea43fb36c1657624be6461ed7be6827. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/JPPO01620949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6885dd4357805fe897bf91712d7c042d37c5f0f295289fe5d53612a64cbcc8f6. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/JPPO01620950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c5c71a060936146f8247648d6a7f0d0b6e2aefcc3308a0b93c63f7e247f04e0. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/JPW461800535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51a5b69892ae34a7e84137f13627f69c48a6fad6c1967e6d10c9c23a593f75b3. 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/JPW461800536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51d067f721e7ab49a1b0c3ce531b61ab81a002056bd528488c8e7d85f35ce7eb. 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/JPW461800537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1eb722bad639b444ea91e265aebed453ed25981086f1ab5714762bf9fba29bf. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/JPW461800538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce904d94008992eb0dd673d5e6172775107b99b944be239ff344400a29cbc559. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPW461800539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3696ccb7743ccc531d104eb2bba3aa832a121d1e08b6c06ed3959d87de681c25. 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/JPW461800540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37cdcb4c0096eb00f8c28132ce258134d11f8a1a1cfef95dc11f99f50f37f2fa. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/JPW461800541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3395b0793f03765a32aeea08b590f0278fb32d09ef363b75cc19e7459ed81428. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPW461800542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d6ba1877716a858f8cac22382f43c9397ba5ed92499fd33f34c15f6d3e3f275. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPW461800543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c60d68a702964cd3d5221037ca3701f1fde51979b29b32a560f23e71eb1fd3f. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/JPW461800544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x902c650b8033c7832c292e362db9ededa95c09deca7e01365c97b28b6ab88a72. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/JP92N2276880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dbabec34b339dd9587550fe9b2d4b81c10ff293dd7f22363fdd0ce888cb529a. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/JP92N2239003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3585c83afac64eb36fc03fa278bab0377a20a531d67ac964b4a01b726223db11. 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/JPW461812520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3be7e35c57b2d8a2f324c7db64641e001688425bd69490b0a46bbbd9c8c33eed. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/JPW461812521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3aaf3c1c389d622ef49e23d574b587ed0d4f05576b6be428b991a66452a2a19. 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/JPW461800512.