Marta Forsberg
type: MusicGroup
genre: drone
genre: experimental
popularity: 2
followers: 583
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1687f74754bdd4e56184201c40d1fa08e18d7e7f0c488206d7d045e8d0098547
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cc18e24e-cd9d-4833-ada6-9a798678fa7b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cc18e24e-cd9d-4833-ada6-9a798678fa7b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cc18e24e-cd9d-4833-ada6-9a798678fa7b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1687f74754bdd4e56184201c40d1fa08e18d7e7f0c488206d7d045e8d0098547","name":"Marta Forsberg","registered_at":"2026-06-20T23:31:51Z","symbol":"NIM1745974","token_address":"0xca915fdeabd1d2046ce2ebe84f519c631bad5f4d","type":"artist","uuid":"cc18e24e-cd9d-4833-ada6-9a798678fa7b"}
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 0x1687f74754bdd4e56184201c40d1fa08e18d7e7f0c488206d7d045e8d0098547. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cc18e24e-cd9d-4833-ada6-9a798678fa7b.json and https://artists.proofprofile.net/proofs/artist/cc18e24e-cd9d-4833-ada6-9a798678fa7b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x1687f74754bdd4e56184201c40d1fa08e18d7e7f0c488206d7d045e8d0098547","name":"Marta Forsberg","registered_at":"2026-06-20T23:31:51Z","symbol":"NIM1745974","token_address":"0xca915fdeabd1d2046ce2ebe84f519c631bad5f4d","type":"artist","uuid":"cc18e24e-cd9d-4833-ada6-9a798678fa7b"}
album: To All Frequencies I Can Not Sense for Quartet
  type: MusicAlbum
  date published: 2017-11-03
album: To All Frequencies I Can Not Sense for Quartet
  type: MusicAlbum
  date published: 2017-11-03
album: New Love Music
  type: MusicAlbum
  date published: 2020-10-16
album: TKAĆ
  type: MusicAlbum
  date published: 2021-03-26
album: TKAĆ
  type: MusicAlbum
  date published: 2021-03-26
album: Light Colours In Jyderup
  type: MusicAlbum
  date published: 2021-12-17
album: Kompisitioner
  type: MusicAlbum
  date published: 2022-02-25
album: Sjunger För Varandra
  type: MusicAlbum
  date published: 2024-03-08
album: Słowa (Not Saying a Word)
  type: MusicAlbum
  date published: 2025-06-20
album: For the Night
  type: MusicAlbum
  date published: 2025-09-23
album: Archaeology of Intimacy
  type: MusicAlbum
  date published: 2025-10-03