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 0x75bedc2f36b0bdb3aa7768c40bb2cae982e7224ec1c9d7e8a84c6936cbf995ea. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7f5cd749-4be4-48a8-acd1-c5190524af4d.json and https://artists.proofprofile.net/proofs/artist/7f5cd749-4be4-48a8-acd1-c5190524af4d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
朝の音楽 朝カフェ ジャズ (朝に聴きたいジャズ音楽 カフェbgm コーヒーbgm)
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 0xc2c183ccbca4ef7e08e8b4836764039065f8b5b4bb110ea2f243925750f0ddf3. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/JPB602181621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x604158b6b636a5aab752ad3ba3a688d912a59f26561529d6459240ff314ae914. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/JPB602181623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd95cf2705be4a3e6a4f026a70db1b0a40f6f92e8d32ed870f2d4e6ca17b75b6a. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/JPB602181624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9ed8cfd5d67db075eacada09ef98a0ae548e75f196bccabc0de3a02be2dd1ee. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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/JPB602181631.
超熟睡・睡眠音楽 (すぐに眠れる音楽・睡眠用BGM)
遊園地で流れる曲 (遊園地音楽 テーマパーク風BGM)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b69012a7df2457bb37057e6282bf14b90d8cc6988e200316dbe4d4cbceeabe6. 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/JPB602184261.
仮眠用 お昼寝用BGM (自然の音 疲労回復音楽 睡眠音楽)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3180f0f51933aa84eb98f3535ea36c78e255fec858144d556c1992e2a2ad3653. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/JPB602185489.
勉強bgm 超集中 (ラウンジ音楽・カフェ音楽 落ち着くジャズ音楽を聴きながら集中力を高める)
森林浴 睡眠音楽 眠れる自然音 (マイナスイオンの滝 Ver.)
朝の音楽 優雅なリラックス ストレス解消音楽 BGM (ストレス 不安を解消する 朝の音楽)
頭を空っぽにする音楽 (考えすぎるのをやめる音楽 ストレス解消 頭痛改善)
癒し音楽 (ジブリギター アコースティックギターでリラックス)
ジャズBGM ジャズサックス (カフェ ジャズバーの癒しサックスでリラックス)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5066b8f68e84a752046841e475b5fd1af8bddffce82c8a0ad62f96ab7b6e48be. 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/JP92N2214395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d99bd36a8f15705591802440024e64414b9e5561dc0656782f0d8ceebcd0ac8. 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/JP92N2214396.