Touch the Earth is an album by a free jazz trio consisting of American trumpeter Wadada Leo Smith, German bassist Peter Kowald and German drummer Günter Sommer, which was recorded live in 1979 and rel
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 0xec993ae2771a3e01419376cef09d27f8063cd07a47c7fdb493c844d61f55aa45. Chain 2 (Bitcoin): anchored in block 953885 (2026-06-16T04:12:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0b56e995-915c-46c7-bfaf-414a6929d574.json and https://artists.proofprofile.net/proofs/artist/0b56e995-915c-46c7-bfaf-414a6929d574.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.