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 0xb13088db15012a50ebacb77b2f92702182f02530c42d491fc346341e2dd4bb7e. 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/e61a49e7-c6b7-4bbb-a76d-d1d3fe367dd9.json and https://artists.proofprofile.net/proofs/artist/e61a49e7-c6b7-4bbb-a76d-d1d3fe367dd9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
晚安了寶貝 - 最好聽的搖籃曲為了家庭和寶寶
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 0x9b03c8fea4cb62db7731fafb3a759b0180e02954c3037aded8ab0864a59add99. 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/ITO101928205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe290ff8add406cf12cd3979e2efe03ac8a495c3b2c1333a5739e07c70db43e7d. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/ITO101928207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c5a3ec7e27948e3643395c16f694bce71a8f991a82b828c560c9da37bb1dbfb. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/ITO101928208.
20首安靜音樂為了放鬆: α波催眠曲, 幫助舒緩抑鬱症, 睡覺和治療失眠
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e14774107e5579bf26557d314742d9385b7993feee71e6d2462181b4be78890. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ITO102063105.
早睡: 助你快速沉睡的背景音樂， 鋼琴音樂，深度放鬆的安眠曲
5分鐘入睡α波 - 幫助睡得很沉的15首深度睡眠腦波歌曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc0a7418f02447f5f9f87de1c5d63ff9925681290e39733415b6becd7e83f502. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/ITLU52267214.
睡眠療癒之旅 - 緩解壓力和焦慮情緒，幫助你沉睡的頂級催眠曲