Robert G. Hagstrom
type: MusicGroup
popularity: 16
followers: 27
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x73a12a881db289ab7448adbf893be0d1afcb885de580a29613e1eede7927b4de
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953600
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953600
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0f40d7b2-5476-46a6-9624-6284c3f6884a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0f40d7b2-5476-46a6-9624-6284c3f6884a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0f40d7b2-5476-46a6-9624-6284c3f6884a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T06:45:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x73a12a881db289ab7448adbf893be0d1afcb885de580a29613e1eede7927b4de","name":"Robert G. Hagstrom","registered_at":"2026-06-14T05:59:19Z","symbol":"NIM0360231","token_address":"0xb636e79adc9ac7dec0bd66651d32c7e9c847ab02","type":"artist","uuid":"0f40d7b2-5476-46a6-9624-6284c3f6884a"}
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 0x73a12a881db289ab7448adbf893be0d1afcb885de580a29613e1eede7927b4de. Chain 2 (Bitcoin): anchored in block 953600 (2026-06-14T06:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0f40d7b2-5476-46a6-9624-6284c3f6884a.json and https://artists.proofprofile.net/proofs/artist/0f40d7b2-5476-46a6-9624-6284c3f6884a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T06:45:44Z
  text: {"copyright_id":"0x73a12a881db289ab7448adbf893be0d1afcb885de580a29613e1eede7927b4de","name":"Robert G. Hagstrom","registered_at":"2026-06-14T05:59:19Z","symbol":"NIM0360231","token_address":"0xb636e79adc9ac7dec0bd66651d32c7e9c847ab02","type":"artist","uuid":"0f40d7b2-5476-46a6-9624-6284c3f6884a"}
album: Warren Buffett [Sein Weg. Seine Methode. Seine Strategie. Dritte, komplett überarbeitete Ausgabe (Ungekürzt)]
  type: MusicAlbum
  date published: 2014-09-30