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 0xa71f408e3c0d3a9cd1271467bbfb57e8dee1c71ca012ba62eac923e104e918d8. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f073994b-c4e6-456d-8606-74be13a07327.json and https://artists.proofprofile.net/proofs/artist/f073994b-c4e6-456d-8606-74be13a07327.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sweet Baby Dreams - Sounds For A Better Sleep
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 0x44343b02023df2f4522997c89567523fcb40432076ab9c0ab32a074b9d5825e2. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:10:44Z), 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/DELJ81745538.
Perfect Sleep - Sounds For Your Baby - Dream A Little Dream
入睡助眠的音乐噪音 - 给婴儿和幼儿
赤ちゃんと幼児のための赤ちゃんの歌と音 - 睡眠やリラックスのために
बच्चों और बच्चों के लिए नींद की सहायता - लगता है और संगीत