Solid Brass is the second and final studio album by the band Circus Lupus. It was released by Dischord Records in 1993. Critical reception The Washington Post said, "From the ambulance-siren guitar o
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 0x9e59280cb54a80fb2cb41db5cbee5316bc9037e65e307917329c421a03b4a156. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f93c7f3d-e9af-48ef-9817-14c464228c3c.json and https://artists.proofprofile.net/proofs/artist/f93c7f3d-e9af-48ef-9817-14c464228c3c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Opera Highlights (Arr. for Brass and Percussion) - Wagner, R. / Verdi, G. / Mozart, W.A. / Bizet, G. / Purcell, H.
Rigoletto (arr. C. Peruti): Act III: La donna e mobile
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 0x8a6356883ab88c63ad72e3fb27da2a64a2af8f0fbdfe4deab5109f6f4aa1ad2e. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/USKC60710527.