Polar Playground
type: MusicGroup
popularity: 2
followers: 454
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5c306d91e4483afaad8f0ece6032d0054205aaba22a58aa02a0aa2356b306f3b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953996
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953996
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2f752d44-d1f2-4c2b-bdab-e3bb1e8911b3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2f752d44-d1f2-4c2b-bdab-e3bb1e8911b3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2f752d44-d1f2-4c2b-bdab-e3bb1e8911b3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T20:04:35Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5c306d91e4483afaad8f0ece6032d0054205aaba22a58aa02a0aa2356b306f3b","name":"Polar Playground","registered_at":"2026-06-16T06:06:45Z","symbol":"NIM0960971","token_address":"0x2b96f7a1010337e86e93e1a71103ea3b8f7876b0","type":"artist","uuid":"2f752d44-d1f2-4c2b-bdab-e3bb1e8911b3"}
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 0x5c306d91e4483afaad8f0ece6032d0054205aaba22a58aa02a0aa2356b306f3b. Chain 2 (Bitcoin): anchored in block 953996 (2026-06-16T20:04:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2f752d44-d1f2-4c2b-bdab-e3bb1e8911b3.json and https://artists.proofprofile.net/proofs/artist/2f752d44-d1f2-4c2b-bdab-e3bb1e8911b3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:04:35Z
  text: {"copyright_id":"0x5c306d91e4483afaad8f0ece6032d0054205aaba22a58aa02a0aa2356b306f3b","name":"Polar Playground","registered_at":"2026-06-16T06:06:45Z","symbol":"NIM0960971","token_address":"0x2b96f7a1010337e86e93e1a71103ea3b8f7876b0","type":"artist","uuid":"2f752d44-d1f2-4c2b-bdab-e3bb1e8911b3"}
album: Stacey
  type: MusicAlbum
  date published: 2019-11-16
album: Stacey
  type: MusicAlbum
  date published: 2019-11-16
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  type: MusicAlbum
  date published: 2020-05-03
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  type: MusicAlbum
  date published: 2020-05-03
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  type: MusicAlbum
  date published: 2020-07-06
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  type: MusicAlbum
  date published: 2020-07-06
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  type: MusicAlbum
  date published: 2022-03-11
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  type: MusicAlbum
  date published: 2022-05-27
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  type: MusicAlbum
  date published: 2022-10-14
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  type: MusicAlbum
  date published: 2023-02-17
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  type: MusicAlbum
  date published: 2023-06-30
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  type: MusicAlbum
  date published: 2024-01-26
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  type: MusicAlbum
  date published: 2024-05-03
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  type: MusicAlbum
  date published: 2024-08-02