Mr. Sandman
type: MusicGroup
description: thumb|Monroe recorded the first version of the song with his orchestra in May 1954. "Mr. Sandman" (or "Mister Sandman") is a popular song written by Pat Ballard and published in 1954. It was first rec
popularity: 5
followers: 120
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2b44925a6fa585ffaac3a25c5fcdeccd958854982f52c1f5fdc3aa75888a3e07
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954553
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954553
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ada6f074-08ab-4cd0-a7e7-b749b0c7df00.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ada6f074-08ab-4cd0-a7e7-b749b0c7df00.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ada6f074-08ab-4cd0-a7e7-b749b0c7df00
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T11:51:30Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2b44925a6fa585ffaac3a25c5fcdeccd958854982f52c1f5fdc3aa75888a3e07","name":"Mr. Sandman","registered_at":"2026-06-20T10:12:28Z","symbol":"NIM1592411","token_address":"0x7a75e59e9adc33e88ce2843d4f2ac67c8d41b099","type":"artist","uuid":"ada6f074-08ab-4cd0-a7e7-b749b0c7df00"}
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 0x2b44925a6fa585ffaac3a25c5fcdeccd958854982f52c1f5fdc3aa75888a3e07. Chain 2 (Bitcoin): anchored in block 954553 (2026-06-20T11:51:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ada6f074-08ab-4cd0-a7e7-b749b0c7df00.json and https://artists.proofprofile.net/proofs/artist/ada6f074-08ab-4cd0-a7e7-b749b0c7df00.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T11:51:30Z
  text: {"copyright_id":"0x2b44925a6fa585ffaac3a25c5fcdeccd958854982f52c1f5fdc3aa75888a3e07","name":"Mr. Sandman","registered_at":"2026-06-20T10:12:28Z","symbol":"NIM1592411","token_address":"0x7a75e59e9adc33e88ce2843d4f2ac67c8d41b099","type":"artist","uuid":"ada6f074-08ab-4cd0-a7e7-b749b0c7df00"}
album: Night Rain Two
  type: MusicAlbum
  date published: 2022-08-17
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  type: MusicAlbum
  date published: 2022-08-17
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  type: MusicAlbum
  date published: 2024-06-20
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  type: MusicAlbum
  date published: 2024-07-08