Mr. O
type: MusicGroup
description: Mr. O was a Canadian children's music television series which aired on CBC Television from 1956 to 1957. Premise This series on classical music was hosted by David Ouchterlony, with soprano Manley St
popularity: 2
followers: 642
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8a82e2c86889f5a50f098994638f576305b3da067d016c237c627e056b006baa
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/828e14c9-e3d8-4cc8-bc63-2697022708b7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/828e14c9-e3d8-4cc8-bc63-2697022708b7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/828e14c9-e3d8-4cc8-bc63-2697022708b7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8a82e2c86889f5a50f098994638f576305b3da067d016c237c627e056b006baa","name":"Mr. O","registered_at":"2026-06-17T11:07:21Z","symbol":"NIM1376236","token_address":"0xd5ab7fcbbe8dc0d2fb5c04bf91c25ead82b6cf97","type":"artist","uuid":"828e14c9-e3d8-4cc8-bc63-2697022708b7"}
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 0x8a82e2c86889f5a50f098994638f576305b3da067d016c237c627e056b006baa. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/828e14c9-e3d8-4cc8-bc63-2697022708b7.json and https://artists.proofprofile.net/proofs/artist/828e14c9-e3d8-4cc8-bc63-2697022708b7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x8a82e2c86889f5a50f098994638f576305b3da067d016c237c627e056b006baa","name":"Mr. O","registered_at":"2026-06-17T11:07:21Z","symbol":"NIM1376236","token_address":"0xd5ab7fcbbe8dc0d2fb5c04bf91c25ead82b6cf97","type":"artist","uuid":"828e14c9-e3d8-4cc8-bc63-2697022708b7"}
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