RB
type: MusicGroup
description: RB or Rb may stand for: People R. B. (nickname) Rebecca Black, an American pop singer Richard Blackwood, a British rapper Places R. B. Winter State Park, a park in Pennsylvania Rancho Bernardo,
popularity: 2
followers: 114
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb0a809a64f8f966d97148d60370dbd0db2dbc63b89d6a5e31a7816798f45e67f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954569
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954569
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b1636c18-035a-424d-9b7b-9200305e525e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b1636c18-035a-424d-9b7b-9200305e525e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b1636c18-035a-424d-9b7b-9200305e525e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T14:36:29Z
additional property: OTSCanonicalRecord
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 0xb0a809a64f8f966d97148d60370dbd0db2dbc63b89d6a5e31a7816798f45e67f. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b1636c18-035a-424d-9b7b-9200305e525e.json and https://artists.proofprofile.net/proofs/artist/b1636c18-035a-424d-9b7b-9200305e525e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T14:36:29Z
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  type: MusicAlbum
  date published: 2020-10-13
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  date published: 2020-12-17
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  date published: 2021-04-25
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  date published: 2021-09-29
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  date published: 2022-06-20
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2025-08-19