Programma 101
type: MusicGroup
description: The Olivetti Programma 101, also known as Perottina or P101, is one of the first "all in one" commercial desktop programmable calculators, although not the first. Produced by Italian manufacturer Oliv
popularity: 8
followers: 190
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb017041085d96b7b879a7059a20f3fd0f478bf68d432313c7945a249968012ee
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/95529c8f-7dfc-41bb-836e-c286f426552a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/95529c8f-7dfc-41bb-836e-c286f426552a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/95529c8f-7dfc-41bb-836e-c286f426552a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb017041085d96b7b879a7059a20f3fd0f478bf68d432313c7945a249968012ee","name":"Programma 101","registered_at":"2026-06-17T17:48:37Z","symbol":"NIM1471929","token_address":"0xd536a3ca8e09e338d4e222c30407eb000fd4322a","type":"artist","uuid":"95529c8f-7dfc-41bb-836e-c286f426552a"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb017041085d96b7b879a7059a20f3fd0f478bf68d432313c7945a249968012ee. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/95529c8f-7dfc-41bb-836e-c286f426552a.json and https://artists.proofprofile.net/proofs/artist/95529c8f-7dfc-41bb-836e-c286f426552a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0xb017041085d96b7b879a7059a20f3fd0f478bf68d432313c7945a249968012ee","name":"Programma 101","registered_at":"2026-06-17T17:48:37Z","symbol":"NIM1471929","token_address":"0xd536a3ca8e09e338d4e222c30407eb000fd4322a","type":"artist","uuid":"95529c8f-7dfc-41bb-836e-c286f426552a"}
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