Ralph Friedman
type: MusicGroup
description: Ralph Friedman (June 3, 1916 – June 3, 1995) was an American author, best known for his books about Oregon, which included travel guides and popular histories. Born and raised to an impoverished Lith
popularity: 7
followers: 19
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x926aca29fd6de53f209d710ad9c9642fc74ad820dc986dd40701200f09c8ba14
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/981ac1b1-e14c-4965-887d-d676703b7b30.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/981ac1b1-e14c-4965-887d-d676703b7b30.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/981ac1b1-e14c-4965-887d-d676703b7b30
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x926aca29fd6de53f209d710ad9c9642fc74ad820dc986dd40701200f09c8ba14","name":"Ralph Friedman","registered_at":"2026-06-17T18:42:29Z","symbol":"NIM1484783","token_address":"0xb9afc04ddf4d2a95f8d05b36501a20ff310cd9ac","type":"artist","uuid":"981ac1b1-e14c-4965-887d-d676703b7b30"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x926aca29fd6de53f209d710ad9c9642fc74ad820dc986dd40701200f09c8ba14. 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/981ac1b1-e14c-4965-887d-d676703b7b30.json and https://artists.proofprofile.net/proofs/artist/981ac1b1-e14c-4965-887d-d676703b7b30.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0x926aca29fd6de53f209d710ad9c9642fc74ad820dc986dd40701200f09c8ba14","name":"Ralph Friedman","registered_at":"2026-06-17T18:42:29Z","symbol":"NIM1484783","token_address":"0xb9afc04ddf4d2a95f8d05b36501a20ff310cd9ac","type":"artist","uuid":"981ac1b1-e14c-4965-887d-d676703b7b30"}
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