Ka Ma
type: MusicGroup
popularity: 6
followers: 132
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe6392f7d2c629d1d0bd2d06cb60849fb3b41d1d00239f9613156d4ce9fc17329
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954062
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954062
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4768c28a-e806-42bc-9fa5-2789894edcd1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4768c28a-e806-42bc-9fa5-2789894edcd1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4768c28a-e806-42bc-9fa5-2789894edcd1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T07:39:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe6392f7d2c629d1d0bd2d06cb60849fb3b41d1d00239f9613156d4ce9fc17329","name":"Ka Ma","registered_at":"2026-06-16T14:28:17Z","symbol":"NIM1080646","token_address":"0x87129780c9b59a27a22d70d08d746877577b4821","type":"artist","uuid":"4768c28a-e806-42bc-9fa5-2789894edcd1"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6392f7d2c629d1d0bd2d06cb60849fb3b41d1d00239f9613156d4ce9fc17329. Chain 2 (Bitcoin): anchored in block 954062 (2026-06-17T07:39:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4768c28a-e806-42bc-9fa5-2789894edcd1.json and https://artists.proofprofile.net/proofs/artist/4768c28a-e806-42bc-9fa5-2789894edcd1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T07:39:10Z
  text: {"copyright_id":"0xe6392f7d2c629d1d0bd2d06cb60849fb3b41d1d00239f9613156d4ce9fc17329","name":"Ka Ma","registered_at":"2026-06-16T14:28:17Z","symbol":"NIM1080646","token_address":"0x87129780c9b59a27a22d70d08d746877577b4821","type":"artist","uuid":"4768c28a-e806-42bc-9fa5-2789894edcd1"}
album: Insegnami a pregare
  type: MusicAlbum
  date published: 2009-02-20
album: Facing my giants
  type: MusicAlbum
  date published: 2009-03-13
album: Shades
  type: MusicAlbum
  date published: 2017-04-01
album: Out of the Ashes
  type: MusicAlbum
  date published: 2017-04-14
album: Secret Place
  type: MusicAlbum
  date published: 2025-05-30
album: PICASSO - l’arte di amare (ITA)
  type: MusicAlbum
  date published: 2025-10-03