Charles Summers
type: MusicGroup
description: thumb|Batchelder & Co., photographers. [Charles] Summers [ca. 1863-ca. 1872], taken in Melbourne. Albumen silver carte-de-visite photograph. H9517. La Trobe Picture Collection, State Library Victoria,
popularity: 14
followers: 53
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfb28dd1ce288b96e57276396321e3d833576bd3e9fa5f21af9f67151da5a05cc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953717
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953717
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8767f428-3bad-4fa2-b467-1a98edcc25a2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8767f428-3bad-4fa2-b467-1a98edcc25a2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8767f428-3bad-4fa2-b467-1a98edcc25a2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T01:05:33Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfb28dd1ce288b96e57276396321e3d833576bd3e9fa5f21af9f67151da5a05cc","name":"Charles Summers","registered_at":"2026-06-14T18:44:59Z","symbol":"NIM0542821","token_address":"0x6d58abf5114ad61330188371c6bf68eb7eedaa38","type":"artist","uuid":"8767f428-3bad-4fa2-b467-1a98edcc25a2"}
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 0xfb28dd1ce288b96e57276396321e3d833576bd3e9fa5f21af9f67151da5a05cc. Chain 2 (Bitcoin): anchored in block 953717 (2026-06-15T01:05:33Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8767f428-3bad-4fa2-b467-1a98edcc25a2.json and https://artists.proofprofile.net/proofs/artist/8767f428-3bad-4fa2-b467-1a98edcc25a2.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-15T01:05:33Z
  text: {"copyright_id":"0xfb28dd1ce288b96e57276396321e3d833576bd3e9fa5f21af9f67151da5a05cc","name":"Charles Summers","registered_at":"2026-06-14T18:44:59Z","symbol":"NIM0542821","token_address":"0x6d58abf5114ad61330188371c6bf68eb7eedaa38","type":"artist","uuid":"8767f428-3bad-4fa2-b467-1a98edcc25a2"}