On Letting Go is the second studio album by American rock band Circa Survive, released on May 29, 2007, through Equal Vision Records. The album was produced by Bryan McTernan and was recorded througho
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 0x52a037f1e2442c7b59912c6b4c0458c45ebabd23fc9e916c2aa475f721103b3d. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/88556499-17a8-4cd0-a72c-a28ce04b619f.json and https://artists.proofprofile.net/proofs/artist/88556499-17a8-4cd0-a72c-a28ce04b619f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).