Paulusma
type: MusicGroup
genre: nederpop
description: Paulusma is a surname. Notable people with the surname include: Polly Paulusma (born 1976), English singer-songwriter Wieke Paulusma (born 1978), Dutch politician
popularity: 2
followers: 913
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x39a1a7cd7027a5efa43145274c29e5ed10acc8eb5f083b8a53b9807d5f485e3e
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/bab44606-ec7e-4adf-aa4c-0fca7c982fe2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bab44606-ec7e-4adf-aa4c-0fca7c982fe2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bab44606-ec7e-4adf-aa4c-0fca7c982fe2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
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 0x39a1a7cd7027a5efa43145274c29e5ed10acc8eb5f083b8a53b9807d5f485e3e. 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/bab44606-ec7e-4adf-aa4c-0fca7c982fe2.json and https://artists.proofprofile.net/proofs/artist/bab44606-ec7e-4adf-aa4c-0fca7c982fe2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
album: Somehow Anyhow
  type: MusicAlbum
  date published: 2019-03-22
album: Pulling Weeds
  type: MusicAlbum
  date published: 2014-11-14
album: Irecord
  type: MusicAlbum
  date published: 2008-11-10
album: Here We Are
  type: MusicAlbum
  date published: 2006-01-23
album: Heartlands
  type: MusicAlbum
  date published: 2022-02-06
  track: Heartlands
album: Singer Without Song
  type: MusicAlbum
  date published: 2019-03-08
album: Crying Shame
  type: MusicAlbum
  date published: 2019-02-22
album: Stick Around with You
  type: MusicAlbum
  date published: 2014-10-17
album: De Troubadours Vol. 1 (Deluxe)
  type: MusicAlbum
  date published: 2022-04-29
album: De Troubadours vol. 1
  type: MusicAlbum
  date published: 2022-04-15
album: My Treasures
  type: MusicAlbum
  date published: 2021-11-28
album: The Playful Maziness of Art
  type: MusicAlbum
  date published: 2023-11-04

Heartlands
type: MusicRecording
duration: PT3M21S
duration ms: 201216
explicit: false
by artist: Paulusma
by artist: De Troubadours
in album: Heartlands
  type: MusicAlbum
  date published: 2022-02-06
popularity: 2
genre: nederpop
isrc code: NLP972200007
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T15:03:53+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x531ddd1aa860b5ec37fdbbbc8e585d0251750fe8530c8f798eaad50a9faf8588
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLP972200007
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x531ddd1aa860b5ec37fdbbbc8e585d0251750fe8530c8f798eaad50a9faf8588. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLP972200007.
  date published: 2026-07-08T03:22:41Z
audio: Heartlands
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 111.156
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.467
  additional property: Energy
    type: PropertyValue
    value: 0.338
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.84
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.157
  additional property: Liveness
    type: PropertyValue
    value: 0.097
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.275
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.984
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Minor