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 0x4585b4309f75817ad175b1313c3f9fdebb9bfa71ba45fbe62acfcec2a694ed83. 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/9205e39f-73be-4e4f-878d-1eca931926d1.json and https://artists.proofprofile.net/proofs/artist/9205e39f-73be-4e4f-878d-1eca931926d1.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 0x8e11df8dbd48e7e61a3cd171a3dae086c4203357bf60cf0c2f510b5d80f74d1d. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/JPJ592002738.
人生カワタニエン【自販機でコーヒー押したらおしるこが出てきちゃった盤】
人生カワタニエン【冬のコンポタージュ暖かいんだから盤】
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fac45768d32f48214c4ee01821c278ddb92e078b4ad478851e80879ab840ffa. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/TCJPI1983520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49261c0d43be80f5af9b9cbef99992179c7a1c339fdf2d23e2b61792d37aa4ff. 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/TCJPJ1919550.
グラビティ↗↗楽しさ♪FULLVOLTAAAGE!!! 時代に作られた嘘 at SHIBUYA WWW X 2020.1.12
推しガチャ！【墨ピアスバチバチ沼ヒモ盤】
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cb0a49c09871fc3ea0c93811142cdba29ec68ee6d3e86bd8b5895cfef0b78a4. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/JP92G2101368.
Karma( feat.BabyKingdom 咲吾＆シェルミィ 豹＆ビバラッシュ るいまる )
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe45931a107e9aaef392b2c3d798336db52f79913d5fd9a5648f9da06a30b78e9. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/JP92G2200037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd190adc1b25c612b222bb7b7c527471d460019023c0d128fd386dafc2c67946. 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/JP92G2200040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52458477dcd59834ca5a46aa421d914eb934d05db7f765adf5bdcf1b05b640a1. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/JP92G2201908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ed7714bf9b2922b9a3024ca4755507414a53341e22e361f14f2b3e1911ef693. 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/JP92G2201913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd103e37a3d102617760876a3e62c4409fbbc11bab81869c355ead48ae8088a16. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/JP92G2205061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x379f0289ee4d60e3a233da96aac625f5cf6bee57fecc614217ab9c4791f8af5a. 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/JP92G2205063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4020c29ea0ad3ec46096c6ad7edf00ed3f81ebc1881d017f9243168ed1b2413. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/JP92G2302333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x878120a1988ad27c851ea21e5485fc1d2355d06a2eb5cca4c8bb5b2850896a3d. Chain 2 (Bitcoin): anchored in block 956430 (2026-07-03T02:22:42Z), 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/JP92G2400098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x791661824240952917c6dcd18cdcbd2cc5e6da6a2714d1e76e6ada0c104a9550. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/JPR292000339.
匂わせ最高最悪リーグ (【最悪ポイズン盤】)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe90263c47f5de45df66ddfcfbd39f6188f6ee0a23539195653d1ee4092931bca. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/JPR292400318.
匂わせ最高最悪リーグ (【最高トロピカル盤】)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb62147601bc5cca411a15a75bbc6037d76fd7b36cf750a6eb13c2c53ea2800a0. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/JPR292400419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69fbec85ed34b41542ac2d6de82c4c825c3398206a2709c446351955cc36cc7b. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/JPR292500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4dea6bb1a23883b2cf5f27c302624cd248e1963d095bdd4ebc4cf81b030a19c. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/JPR292500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfe1d8b7b394a36791dcc99584fac1e4e026ed5c6aaff7f90c357b99f3e2bf66. 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/JPR292500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x865024e1e5dd4a361e4251a775bf74d42811da81da012fa8f12c42dc607c6c59. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/JPR292500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x140f2df59c039da59036177be0c98d21b580d3154dd1078dbf2a260614761cd7. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/JPR292500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a3e7d48eeb752905b140dec23b6d5460bc1c720153f6b80e192a034747d2214. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/JPR292500012.