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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56e07168c81bbec3a6b880e005b9f25d94d9d564b09a1f61ed14872ed4abe2f1. 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/bf5e3d56-2591-43f9-ab85-e000d5c72393.json and https://artists.proofprofile.net/proofs/artist/bf5e3d56-2591-43f9-ab85-e000d5c72393.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
「おとうさんといっしょ」プレミアム ソングス
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7d971a22e8882010244da67a439397c868aca6e22b1a29cad9930578dd60763. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:00:44Z), 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/JPPC01802475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22f656835caac624ef1dd8b23550bf768dc7d2de51800e86cefb6175469ede29. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/JPPC01802473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x270f02b7211cf602f893704873e541f57c8707212c11240b288c5384d74a56b4. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/JPPC02001105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf24aa824d7815fab4c5d24a7003d5a87ecbd3af27fd4665446cf13bfad950151. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:47:15Z), 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/JPPC01802480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d719f31b9a5ba780cd9e78001aaffd4b73a8f2bc04be496c04560f3958e58d3. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/JPPC02001104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xded2c54cb77cc999778cd9e682e8d45dd04a4c2901e264f2ef28b3aaff47271a. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:08:37Z), 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/JPPC02001115.
「おとうさんといっしょ」うたのアルバム ワンダーのマーチ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x074ff0dbe254f166352564be7f096f2c4f82014906a06a33345625c402c7791b. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/JPPC02111958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22a0f1214dd533c0281f47d98f2e7f6fc7f978d018e890b28d826a6f442c6e32. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T17:50:50Z), 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/JPPC02111964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0868c01b981b67d90798f47008512318aeb89aa3b2e57cfc2572accd71fe6a13. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/JPPC02110358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x270f02b7211cf602f893704873e541f57c8707212c11240b288c5384d74a56b4. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/JPPC02001105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf59c0bf6b3f2f76a36d84222074430dad51bd5ae7f15d7af64d242915ce224. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/JPPC02110929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x808e5593a2e13b09d4092a28b75bbba70580f7375afd072428bded3bd1690494. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/JPPC02111960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75b3d1e41b4f44aed875660189940a67f47ca4c5c40d967c70287f5ced716552. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/JPPC02211222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31566f946244f57e1b6e5187fd7443ef363287533c90e3603a22d8c3ecc651ab. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:10:44Z), 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/JPPC02111961.
ながれぼし - ギター&ウクレレアコースティックライブVer (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a20def306ed7041b057a60d50d7e7d92a6749f81e91e9f27f6e4eaff78544c5. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/JPPC02211211.
ジャンプメドレー ～パパふんじゃった～E7系っていいな～やってみYo!～ - コンサートVer. (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5daa2c66495d463333bfa13077ac8e8e5864effd92ece5eb5e34947572b0f3e4. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:35:57Z), 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/JPPC02111963.
「おとうさんといっしょ」スペシャル ～ありがとうさん～
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ea29ff04439df31b2ea3af4ea8463187001834bd6d11ffb0ceeda6fe90883e0. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/JPPC01801309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f8d1da4db37abf5b5f7f6262fc819a734d2e28dc4ed2b7cbe5d1ce74e06f799. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/JPPC01802477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd2bebe666cf0bbc687cdc69ae8a16fd58a8c8e583cc91f653de27a6b1740a9. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/JPPC01802478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0686bd9e57c326b60030c63dba897fb95029f763ff78340df13d59c49e6029a1. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:44:27Z), 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/JPPC02110692.
どんぐりーず漫才 マネダメロックンファイブ その①
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea2c1add68458f7bf1f74dba07845731652993572a9eff8f634ab17742d050bd. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T15:05:49Z), 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/JPPC01701385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f41be75e054cc99441fc85e67b4e5be7153df62c42b6ee360e41f3d341ae26b. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/JPPC01402005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f8f93d147c380f7dd647502238e6c3613d1fe3ad3474a124168666dc8617d69. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/JPPC01802481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x855c05901d8c91fa1761933a51573078d430c16b03960df0411574072223d21a. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/JPPC01701372.