Slomljena Stakla (; trans. Broken Glass) was a Yugoslav pop rock band formed in Belgrade in 1982. They were a prominent act of the 1980s Yugoslav rock scene. History 1982-1991 The band's beginnings
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 0x1a4ffbd8e571a05cc5024c03fa29729505565725e422d8af38d1a1f8ff5cd06d. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e7ad66b3-2333-4deb-a6b2-9ca9ce7a636b.json and https://artists.proofprofile.net/proofs/artist/e7ad66b3-2333-4deb-a6b2-9ca9ce7a636b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).