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 0x66ea6c984e93cb4a552c8965882f87b78459822001d5eb2da8e829e454807f93. 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/83ba0dce-cc4d-4180-aa29-bb1a049991cb.json and https://artists.proofprofile.net/proofs/artist/83ba0dce-cc4d-4180-aa29-bb1a049991cb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
ビリー・バンバンのえるぴい～ミドリーヌ～
ビリー・バンバン・デラックス<明日に架ける橋>
ヴァンタンの子守唄/はたちのロマン
ゴールデン・フォーク・ジャンボリー
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 0x879315152de43b88053b62f7b34998df7a81ae63800c2b4e62d5865812bcb71d. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/JPKI07047602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd95b92706a1ea6b38e13b9d60afbb1b67bbcc6a2b0f4413b68172245d9f2e22b. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/JPAP09710203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6118ece28231e8506381380da0441ef23ff4a53b407c4b61b33bf6d7319c5dd7. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/JPAP09710201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a37d7ea4d146ac2b80a59460a09feb1ff7b66f4e9771be09f07f27222a96e3. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/JPAP09710202.
ビリー・バンバン・セカンド・アルバム
さよならをするために(ニュー・バージョン)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd95b92706a1ea6b38e13b9d60afbb1b67bbcc6a2b0f4413b68172245d9f2e22b. 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/JPAP09710203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe12d310196647e841118eaa10fca1dd567a7d9ace3d6ca1f2dbcdaec5325e4aa. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/JPAP09710205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f7b2247007daa7d7287660fd31381a629fff7ab89198f550bb1cc633988f21d. 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/JPAP09710206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bbf448a4c71f5e8e7876457f12c52657572f5c85698181b14cb8c7ff17a1ada. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/JPAP09710208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x048bcb810fd69b90ca14d471f5ce2543f64a07a814a5bd2ee023b328fe29c745. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/JPH600000760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27d733999f10c05070b97b152d1f9ff178aef5ecb231efb9b1b9ad7f2b53adb2. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/JPPO00520050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd84fe5e646ceb2b9547fd6c9a07f1e3be92b225566c2080b33fb8a782d781311. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/JPPO00531180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaacf1a849be13225cd5f73984a45aa54a6b36c7a4222ee8257486b296ea7f144. Chain 2 (Bitcoin): anchored in block 957576 (2026-07-11T14:19:48Z), 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/JPPO00740240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eba32104121b336583bb24e913fcf95468dcf1ab16084760e64725d7e70705e. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/JPPO00883250.
ゴールデン☆ベスト ビリー・バンバン ～また君に恋してる～
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaacf1a849be13225cd5f73984a45aa54a6b36c7a4222ee8257486b296ea7f144. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/JPPO00740240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b571d862e744778896fb189a41e671af2b9d6af9cdeb14e532e976ad955cd14. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/JPPO00883240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c1cb690660ace4e255815b0d9ff965022399ffad1e8806b3be00671d432e553. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/JPPO00424280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ca0518f3cf139e57dafab22d54cc4f47be179ddc0099f4b285f12eb7f1c9800. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/JPPO00942820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ed7093500683a8d88f5bf1cbfa2ba6807a844c881ae2e4d4d3259c28caa96f5. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/JPPO01620212.
オールタイムベスト 45th Anniversary ～to the future～
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf380530d2f94581f3204e1c196c58d566d650641fa104c2d7ba76f15562f0862. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/JPPO01152051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe83b04091773f5255b54fb02f9e0284706ba5c190a869ecd39f8a6278cadcf13. Chain 2 (Bitcoin): anchored in block 958590 (2026-07-18T17:28:56Z), 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/JPPO00957000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02f1485dbd214ac668048678f2ca07a6f69796083b10518261849ec7eec81e52. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/JPPO02200360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc78864f93dc8e3bb0a81758dd1ea107db8eea38e295fba99dfc25477c9fc932d. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/JPL802455001.