Dark Matter
type: MusicGroup
genre: hard house
description: In astronomy and cosmology, dark matter is an invisible and hypothetical form of matter that does not interact with light or other electromagnetic radiation. Dark matter is implied by gravitational ef
popularity: 2
followers: 73
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1295e8707884a2ebf0259226335cb5d6b66ed20f4f61afea81bb73581c6f301e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954615
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954615
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c54302b8-6057-413d-9749-d9509e0d3a52.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c54302b8-6057-413d-9749-d9509e0d3a52.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c54302b8-6057-413d-9749-d9509e0d3a52
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T22:44:50Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1295e8707884a2ebf0259226335cb5d6b66ed20f4f61afea81bb73581c6f301e","name":"Dark Matter","registered_at":"2026-06-20T21:13:33Z","symbol":"NIM1715520","token_address":"0x760d27ebe117365f49913585c4c50ee0e2932a9b","type":"artist","uuid":"c54302b8-6057-413d-9749-d9509e0d3a52"}
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 0x1295e8707884a2ebf0259226335cb5d6b66ed20f4f61afea81bb73581c6f301e. Chain 2 (Bitcoin): anchored in block 954615 (2026-06-20T22:44:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c54302b8-6057-413d-9749-d9509e0d3a52.json and https://artists.proofprofile.net/proofs/artist/c54302b8-6057-413d-9749-d9509e0d3a52.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T22:44:50Z
  text: {"copyright_id":"0x1295e8707884a2ebf0259226335cb5d6b66ed20f4f61afea81bb73581c6f301e","name":"Dark Matter","registered_at":"2026-06-20T21:13:33Z","symbol":"NIM1715520","token_address":"0x760d27ebe117365f49913585c4c50ee0e2932a9b","type":"artist","uuid":"c54302b8-6057-413d-9749-d9509e0d3a52"}
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