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 0x82a69edc135b8730ddf7871368fc5898a19bc679d499ea3c9b28b79c7c3bf23e. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4bb8b22d-2ac1-485a-98ff-2d212dc46224.json and https://artists.proofprofile.net/proofs/artist/4bb8b22d-2ac1-485a-98ff-2d212dc46224.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
シーサイド・バウンド／星のプリンス
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 0x89a3325569bd1b7f38e8bfc88dc028aadd9fa912c5fe86e0992b63f5ce5cdcec. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:20:20Z), 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/JPPO06600190.
モナリザの微笑／真赤なジャケット
ザ・タイガース・オン・ステージ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24430ffb94b2026fdbc2f8d54cd0087cea109d3a41de375f9b16736672fbc250. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:50:02Z), 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/JPPO06600850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7635adef46db3fd4a44366ecc8912ebaa9af738738cbd3ecbc558d9a1191dec0. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/JPPO06600220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33cc85397e3a40b8d9264a7fd53c111e05899402feee221b89c4882c994d3515. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/JPPO06600240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb6f76727098a31fdc191a5f3f60524c2f9c7ff556fab4378bc087681572a81b. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:12:09Z), 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/JPPO06600860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb882f5c8cae0ffae15665b69fc9d91150277dc4fdb5e9d50f164d89e0623d15. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/JPPO06800190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab56c35ca17abd287afa10dce977b5a79340d263b2d9529df4e8d97ad9063633. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/JPPO06701610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa34b9e04ac5e0d5fe684d0ae8c44d90d6a1f9bd9b24e56f2b1deb7b346468a65. 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/JPPO06700440.
スマイル・フォー・ミー／淋しい雨
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xced5e8cc32caafd3047615290a64e1fd0eec5f4a10024232a7641ed1d1749972. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/JPPO06900320.
誓いの明日／出発のほかに何がある
ザ・タイガース・サウンズ・イン・コロシアム [ Live At 田園コロシアム / 1970 ]