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 0xe2600a2444b056a249d941a283893227e140a1626f4b4b05a0caad9a6493a93a. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/38f6f81f-a866-4ca0-a18f-6dcec55575eb.json and https://artists.proofprofile.net/proofs/artist/38f6f81f-a866-4ca0-a18f-6dcec55575eb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
やすらぎのクラシック 気分転換のシンフォニー
やすらぎのクラシック 懐かしき愛のセレナーデ
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 0xa0e1ca9dece92a1a008fa71bd1280ec95ed54c6410d8466ed76aae46810b0c1d. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:50:37Z), 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/JPE641300111.
やすらぎのクラシック ティータイムのクラシック
やすらぎのクラシック リフレッシュのための名曲集
やすらぎのクラシック やる気が出るワルツの調べ
やすらぎのクラシック さわやかな朝のバロック
やすらぎのクラシック 快適すいみんのためのパヴァーヌ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb64997d574bf66514c7070a5903332a3a8e571df9e79ea7552958c5a8614257a. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/JPE641300093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2687511ed05945a4a5ecb9cacfa0f2c4fb3e12f5c973c0c231ceb8a29e15c90. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/JPE641300094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x290ebdfaeabb6722f9b5dfe398968d2da357cb47d35d89c0e731d9a49eb0b5be. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/JPE641300098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x132a02550c3d6cfd363c01e539c241efdd57eaeafe6a06bc0835d20d40c8df57. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/JPE641300099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadf9e97fd94c2aded1bb95b5ed7a7c36e211778f472c20cde0e148ce83334292. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/JPE641300105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2de473fa66c3d37eeca72353e0e98691bdf504485909476080dc37ae810004fb. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-17T00:21:06Z), 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/JPE641300137.