A nightcore edit (also known as a sped-up song, sped-up version, sped-up remix, or simply sped-up) is a version of a music track that speeds up its source material by approximately 35%, which also rai
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 0x33c12218552ede3482c812935ab2da087feed0f519aa512a21e432b4ea0cad5a. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/147a1920-dcf3-437b-8b7e-3ad444088d0e.json and https://artists.proofprofile.net/proofs/artist/147a1920-dcf3-437b-8b7e-3ad444088d0e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).