Hollow Hum
type: MusicGroup
popularity: 38
followers: 4459
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4cfeb2fbc9e8df7388d2ecabd072cc7a90142db26ee99e1b2f174b884cf04d96
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b66684a0-544c-4268-b9e9-27542c9b92b0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b66684a0-544c-4268-b9e9-27542c9b92b0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b66684a0-544c-4268-b9e9-27542c9b92b0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4cfeb2fbc9e8df7388d2ecabd072cc7a90142db26ee99e1b2f174b884cf04d96","name":"Hollow Hum","registered_at":"2026-06-12T07:56:30Z","symbol":"NIM0234792","token_address":"0xfb82ec0e1557d249fc5560883673d5fa2d2c5ef8","type":"artist","uuid":"b66684a0-544c-4268-b9e9-27542c9b92b0"}
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 0x4cfeb2fbc9e8df7388d2ecabd072cc7a90142db26ee99e1b2f174b884cf04d96. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b66684a0-544c-4268-b9e9-27542c9b92b0.json and https://artists.proofprofile.net/proofs/artist/b66684a0-544c-4268-b9e9-27542c9b92b0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x4cfeb2fbc9e8df7388d2ecabd072cc7a90142db26ee99e1b2f174b884cf04d96","name":"Hollow Hum","registered_at":"2026-06-12T07:56:30Z","symbol":"NIM0234792","token_address":"0xfb82ec0e1557d249fc5560883673d5fa2d2c5ef8","type":"artist","uuid":"b66684a0-544c-4268-b9e9-27542c9b92b0"}
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  date published: 2016-09-02
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  type: MusicAlbum
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  date published: 2017-06-02
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  date published: 2018-07-06
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  date published: 2019-06-01
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  date published: 2019-06-01
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  type: MusicAlbum
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