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 0xd71c3b9ae9b1dbeb3b55007afe13c973521df93f035497635fb48b2f6025b4c8. 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/31a487f3-53af-4c4b-b740-0f3b29bf674e.json and https://artists.proofprofile.net/proofs/artist/31a487f3-53af-4c4b-b740-0f3b29bf674e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
감성충전 Famous Classic - Contemporary Jazz Piano VOL.2
최신 J-POP 피아노 - Piano Instrument Collection
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 0x7f8329253c857073379a38f839e87ea7362c60ebd16f03cf2fd43033e678e6a1. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/KRB921720106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x087de07bf27344e39bfc3ab7741cbd6764f93fd8c442da4592e3a8c77351bcf5. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/KRB921720113.
Opera 'Aria' - The Most Beautiful Classical Piano Instrument
The Most Beautiful Sound Love Song - Hit Pop's Best Piano
오르골 사운드로 함께하는 최신히트팝 뮤직박스 (Relaxing Orgel)
Study Room Sound Design - Vol.1 아름다운 오르골
시대를 초월한 마음 (時代を越える想い) ( 영화 '이누야샤')
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb6ac5023376c86b5481f369438fff2ef2d68646d373b58e88c4a54edf253d66. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:54:25Z), 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/KRB921722455.
The Greatest Hits The Carpenters Piano Solo Instrument
SWEET JAZZ - 감미로운 피아노 선율로 그린 불후의 재즈 명곡 15
최신 J-POP 피아노 - Piano Instrument Collection Vol.2
최신 J-POP 피아노 - Piano Instrument Collection Vol.2 J-POP - Piano Instrument Collection Vol.2
2019' 한국인이 지금 가장 좋아하는 최신 팝 Piano Cover Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xede92b8602c2e367a2d9ff568e881547976a654ca940712fe233b09d509e71c2. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/KRB921725367.
Take Me Home Country Roads (귀를 기울이면, 1995)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc290736066828d60ed67d6632da2c0b7fbbeaeeb407ea21348e4dd640e59c5f. 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/KRB921725374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf955a3ab6d309c31f1d9700f3c9f77ac8fa47ee688a36fa6abc4083c3a335e03. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/KRB921725375.
언제나 몇 번이라도 (いつも何度でも) (센과 치히로의 행방불명, 2001)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06831b7bf08ef27b3f23b0637238fe6b2d7e81135b7dcb1ee1b8396e930cee32. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/KRB921725379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb9c062596492caa319283f5b22f10d6b32a9165884effb5c229b097a2669e4f. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/KRB921725383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f809f625311324bb137b47b2177b3d9b9a155327ca2503abe24061433b218d9. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:41:57Z), 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/KRB921725384.
감성충전 Famous Classic - Contemporary Jazz Piano
The Most Beautiful Piano Peaces Classical Elegie
Classical Music In Jazz Improvisation Piano 30
Dreaming Classic - Jazz Piano Instrument
Sweet Dream Of Baby (Binaural Rain Sounds)