David Le'aupepe
type: MusicGroup
description: David Immanuel Menachem Sasagi Le’aupepe is an Australian singer, songwriter, guitarist and frontman of alternative rock band Gang of Youths, which he founded in 2011. He served as the sole songwriter
popularity: 11
followers: 105
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x36852e693edc4f5943c80a0392da57b2963b50dc35192b0d2ec0a2e19b578342
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953657
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953657
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4b3cbfc7-17e2-4c76-adf3-027b0fe9fe6d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4b3cbfc7-17e2-4c76-adf3-027b0fe9fe6d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4b3cbfc7-17e2-4c76-adf3-027b0fe9fe6d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T16:43:25Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x36852e693edc4f5943c80a0392da57b2963b50dc35192b0d2ec0a2e19b578342","name":"David Le'aupepe","registered_at":"2026-06-14T12:23:36Z","symbol":"NIM0451855","token_address":"0x98959841c20399a06da757018267e5c0efc5357e","type":"artist","uuid":"4b3cbfc7-17e2-4c76-adf3-027b0fe9fe6d"}
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 0x36852e693edc4f5943c80a0392da57b2963b50dc35192b0d2ec0a2e19b578342. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4b3cbfc7-17e2-4c76-adf3-027b0fe9fe6d.json and https://artists.proofprofile.net/proofs/artist/4b3cbfc7-17e2-4c76-adf3-027b0fe9fe6d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T16:43:25Z
  text: {"copyright_id":"0x36852e693edc4f5943c80a0392da57b2963b50dc35192b0d2ec0a2e19b578342","name":"David Le'aupepe","registered_at":"2026-06-14T12:23:36Z","symbol":"NIM0451855","token_address":"0x98959841c20399a06da757018267e5c0efc5357e","type":"artist","uuid":"4b3cbfc7-17e2-4c76-adf3-027b0fe9fe6d"}