Roland Roberts
type: MusicGroup
genre: alt country
genre: americana
description: Roland Roberts (October 22, 1897 — March 31, 1965) was an American male tennis player. Tennis career In 1918 he became the Pacific Coast lawn tennis champion. In a tournament that lacked most of the
popularity: 5
followers: 740
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x00edc1ce435aeb53925b68f79bcf35e8c8cab78d75ceec5812ba830185bef33a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953997
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953997
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/25fe6613-5df8-4976-b2a5-48be15426e69.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/25fe6613-5df8-4976-b2a5-48be15426e69.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/25fe6613-5df8-4976-b2a5-48be15426e69
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T20:07:57Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x00edc1ce435aeb53925b68f79bcf35e8c8cab78d75ceec5812ba830185bef33a","name":"Roland Roberts","registered_at":"2026-06-16T02:47:43Z","symbol":"NIM0913427","token_address":"0x2643ba27c408dad3bba0834d0d8cb5cf39f7ee30","type":"artist","uuid":"25fe6613-5df8-4976-b2a5-48be15426e69"}
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 0x00edc1ce435aeb53925b68f79bcf35e8c8cab78d75ceec5812ba830185bef33a. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/25fe6613-5df8-4976-b2a5-48be15426e69.json and https://artists.proofprofile.net/proofs/artist/25fe6613-5df8-4976-b2a5-48be15426e69.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T22:46:20Z
  text: {"copyright_id":"0x00edc1ce435aeb53925b68f79bcf35e8c8cab78d75ceec5812ba830185bef33a","name":"Roland Roberts","registered_at":"2026-06-16T02:47:43Z","symbol":"NIM0913427","token_address":"0x2643ba27c408dad3bba0834d0d8cb5cf39f7ee30","type":"artist","uuid":"25fe6613-5df8-4976-b2a5-48be15426e69"}
album: All About the Timing
  type: MusicAlbum
  date published: 2020-03-06
album: For The Record
  type: MusicAlbum
  date published: 2022-06-03
album: So It Goes
  type: MusicAlbum
  date published: 2022-06-21
album: So It Goes
  type: MusicAlbum
  date published: 2022-07-29