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 0x52aa6b7b9c6a1de75b794446b787bbcabf3f8f9da44adb4e848fda924e777a02. Chain 2 (Bitcoin): anchored in block 953694 (2026-06-14T21:38:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/717b3699-c19c-4b85-a64e-0b05dcc9bcbe.json and https://artists.proofprofile.net/proofs/artist/717b3699-c19c-4b85-a64e-0b05dcc9bcbe.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
ジャズで仕事に集中 -作業用BGMでカフェ気分-
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 0x80a1df54e55e8de9dfcf66a82d5086cced3401532d6365bfff986321a979ee0e. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/JPW791900038.
感動ソロピアノ 結婚式など光、未来、希望
和の心を感じるリラックスピアノ -仕事や勉強がはかどるBGM-
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4b682c5af20202e034a7e9cceef45f95f9347d11b5ed86ced721703e254ccf2. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPW792000484.
企業系ピアノソロで優雅さと爽やかさ演出
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb950cb4b9afa39c3f1a94bb7feb841a1540592b4c1b6f101c331231811fbad36. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPW792000590.
澄み切ったピアノソロのポジティブ透明感
癒し効果のあるアロマリラックスピアノ -ヨガや瞑想、マインドフルネス向けBGM-
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc26b5682d7db70596c8c9bd1046b756862c5b6261a7326f9617b70499f3769fa. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPW792000599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a0bab72931f9ab11bf1c8bbcb065336988d864553e7e84fcf0c9a0424b17563. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPW792000607.
静かにキラキラ響くピアノで癒し感と透明感
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7d450286bca0cad731473a912e352500b3a67c3196405a0f1afa4896c9578af. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPW792000600.
癒し効果のある和風BGM -箏や尺八、三味線などの落ち着いた音楽-
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98e2afb1ceba640781964891fdc1eee0560b3b4471b51e4431345be308c90cc2. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/JPW792000078.
生演奏ギターの爽やかオープニング感動壮大
仕事が捗るテレワーク用BGMヒッツ -奏-
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38e45f6e4ae81bb028265a54f308fc3a00d2f1b99c32fe4b49ad98f43cdff31c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPW791900091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff8c9cc07c92082b7a6d30b1b9e39bd9ad822c885318ce2cef21f8f8bc70976f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPW791900079.
和風 Vol.1 -Instrumental BGM- by Audiostock
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x695ae142846155a7e574a40504e8b93cae6018e9ce490804eb3822c4a8581549. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/JPW792001203.
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
生演奏チェロ 爽やかイベントオープニング
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2de5811b42f67971839ee0cae34475b12bc9174152c9478b469c2d33ce42e5f. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/JPW791900082.
生演奏サックス 企業VPオープニング爽やか
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x594ff5d9d5d1f897ac924061e0c66b93fb724b6e59c3d09744ea02b1131b0168. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/JPW791900092.
生演奏バイオリン 企業向け楽しくかわいい
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4bb4430a2e8bde7ae8116ea2fa58c1c6a562ae1814cf96dd0e19ec3ab66e935. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/JPW791900073.
生演奏バイオリンとオーケストラ感動ポップ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3fd12791695ef3dc7be3459ac4b8a5aa10f8497009b159d8e5171acefef252a. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/JPW791900067.