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 0x44587c7ec4f9feeaf17f7a082b888e07ee54109b42aa3b446764ae1e095b2241. Chain 2 (Bitcoin): anchored in block 953654 (2026-06-14T16:26:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/49344752-77bd-4ea5-b7a2-67fb71ca9e9c.json and https://artists.proofprofile.net/proofs/artist/49344752-77bd-4ea5-b7a2-67fb71ca9e9c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0xd4b294b10e43129b229ee93eb0942efada723a0853abeb56759d0eeb105f7c0d. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/ES5530901746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c7237085529cae0cce7f2e4f842658349f9ff96d94bb943fd5f437ddfd3dfff. 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/ES5530901760.
The Most Essential Classical Music for Your Baby: Mozart for Babies, Kids and Toddlers, Effect Lullabies
Child and Classical Music – Classical Composers for Children, Classical Melody for Babies, Mozart, Beethoven, Child’s World
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Music for Brilliant, Little Baby – Classical Sounds for Listening and Relaxation, Smart, Little Baby, Build Your Baby IQ, Train Brain Your Child
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Development Toddler – Music for Baby, Einstein Effect, Educational Songs
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Perfect Learning for Kids – Brilliant Music for Baby, Creative Sounds, Brilliant Toddler
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