Fred Haas
type: MusicGroup
description: Frederick Theodore Haas Jr. (January 3, 1916 – January 26, 2004) was an American professional golfer. Amateur career Haas was born in Portland, Arkansas. After graduating from Dermott High School,
popularity: 2
followers: 58
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x25c4fb8c42565c7a6cc155dcd40caa490e564de5e66cae2eb5925185c2a30d47
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/63631d09-0f80-424d-9182-eb66aefb28c3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/63631d09-0f80-424d-9182-eb66aefb28c3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/63631d09-0f80-424d-9182-eb66aefb28c3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x25c4fb8c42565c7a6cc155dcd40caa490e564de5e66cae2eb5925185c2a30d47","name":"Fred Haas","registered_at":"2026-06-17T00:18:18Z","symbol":"NIM1221433","token_address":"0xa8c47ee0fdb7f1352d19214009973d3eac0edc3f","type":"artist","uuid":"63631d09-0f80-424d-9182-eb66aefb28c3"}
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 0x25c4fb8c42565c7a6cc155dcd40caa490e564de5e66cae2eb5925185c2a30d47. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/63631d09-0f80-424d-9182-eb66aefb28c3.json and https://artists.proofprofile.net/proofs/artist/63631d09-0f80-424d-9182-eb66aefb28c3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x25c4fb8c42565c7a6cc155dcd40caa490e564de5e66cae2eb5925185c2a30d47","name":"Fred Haas","registered_at":"2026-06-17T00:18:18Z","symbol":"NIM1221433","token_address":"0xa8c47ee0fdb7f1352d19214009973d3eac0edc3f","type":"artist","uuid":"63631d09-0f80-424d-9182-eb66aefb28c3"}