Madson
type: MusicGroup
popularity: 7
followers: 286
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x68e270a45d484d0e9db8ad7421d6b0cf1b6db9f7f4f5913a91e6133582e4363e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954063
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954063
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/47f8b71c-18bb-4c0f-87df-918ef495905b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/47f8b71c-18bb-4c0f-87df-918ef495905b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/47f8b71c-18bb-4c0f-87df-918ef495905b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T07:49:29Z
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 0x68e270a45d484d0e9db8ad7421d6b0cf1b6db9f7f4f5913a91e6133582e4363e. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/47f8b71c-18bb-4c0f-87df-918ef495905b.json and https://artists.proofprofile.net/proofs/artist/47f8b71c-18bb-4c0f-87df-918ef495905b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
album: Rocket For Your Skyline
  type: MusicAlbum
  date published: 2015-05-04
album: Rocket for Your Skyline
  type: MusicAlbum
  date published: 2015-08-28
album: Golden Age
  type: MusicAlbum
  date published: 2019-04-12
album: The Light Ahead of Us
  type: MusicAlbum
  date published: 2019-09-06
album: Visions of Magnolia Sky
  type: MusicAlbum
  date published: 2019-09-27
album: This Time
  type: MusicAlbum
  date published: 2020-04-10
album: Sundance
  type: MusicAlbum
  date published: 2020-06-05