Sipol
type: MusicGroup
genre: opm
popularity: 3
followers: 191
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x18b2f192facee1d6b0dd71091248c09d4b471fd5f2bb9fc569e96795b87ab2cc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954031
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954031
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3a51ffd4-f791-470a-bc2a-340967ebd31c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3a51ffd4-f791-470a-bc2a-340967ebd31c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3a51ffd4-f791-470a-bc2a-340967ebd31c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T01:43:23Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18b2f192facee1d6b0dd71091248c09d4b471fd5f2bb9fc569e96795b87ab2cc. Chain 2 (Bitcoin): anchored in block 954031 (2026-06-17T01:43:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3a51ffd4-f791-470a-bc2a-340967ebd31c.json and https://artists.proofprofile.net/proofs/artist/3a51ffd4-f791-470a-bc2a-340967ebd31c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T01:43:23Z
album: Unplug and Play
  type: MusicAlbum
  date published: 2004
album: Unplug and Play
  type: MusicAlbum
  date published: 2004-05-01
album: Chill Ka Lang
  type: MusicAlbum
  date published: 2022-03-07
album: Baka Sakali
  type: MusicAlbum
  date published: 2022-07-22
album: Ang Pangarap Kong Regalo
  type: MusicAlbum
  date published: 2023-10-20
album: 'Pag Sumasapit Ang Pasko
  type: MusicAlbum
  date published: 2023-11-03
album: One Perfect Day
  type: MusicAlbum
  date published: 2025-02-14