Chór Męski HARFA
type: MusicGroup
popularity: 3
followers: 206
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd42f490730321c82d48bd877030007e4037b0a61f36f607f1a607b5297085c6a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/76a27cc8-7119-40dc-8ed8-fa74119a0a3f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/76a27cc8-7119-40dc-8ed8-fa74119a0a3f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/76a27cc8-7119-40dc-8ed8-fa74119a0a3f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd42f490730321c82d48bd877030007e4037b0a61f36f607f1a607b5297085c6a","name":"Chór Męski HARFA","registered_at":"2026-06-17T07:03:02Z","symbol":"NIM1318016","token_address":"0x7adfe5e23faf0cb87f0d9b582f199efd3fc97165","type":"artist","uuid":"76a27cc8-7119-40dc-8ed8-fa74119a0a3f"}
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 0xd42f490730321c82d48bd877030007e4037b0a61f36f607f1a607b5297085c6a. Chain 2 (Bitcoin): anchored in block 954115 (2026-06-17T15:44:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/76a27cc8-7119-40dc-8ed8-fa74119a0a3f.json and https://artists.proofprofile.net/proofs/artist/76a27cc8-7119-40dc-8ed8-fa74119a0a3f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T15:44:10Z
  text: {"copyright_id":"0xd42f490730321c82d48bd877030007e4037b0a61f36f607f1a607b5297085c6a","name":"Chór Męski HARFA","registered_at":"2026-06-17T07:03:02Z","symbol":"NIM1318016","token_address":"0x7adfe5e23faf0cb87f0d9b582f199efd3fc97165","type":"artist","uuid":"76a27cc8-7119-40dc-8ed8-fa74119a0a3f"}
album: Harfa śpiewa pieśni polskie
  type: MusicAlbum
  date published: 1979-12-31
album: Najpiękniejsze kolędy polskie
  type: MusicAlbum
  date published: 1998-12-31
album: Piosenka jest dobra na wszystko
  type: MusicAlbum
  date published: 2017-10-25
album: Piosenka jest dobra na wszystko
  type: MusicAlbum
  date published: 2017-10-25
  track: Dam ci ptaszka

Dam ci ptaszka
type: MusicRecording
duration: PT2M26S
duration ms: 146007
explicit: false
by artist: Chór Męski HARFA
in album: Piosenka jest dobra na wszystko
  type: MusicAlbum
  date published: 2017-10-25
isrc code: PLR401700701
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T11:14:09+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbcdc26a27d4b3d825bfac1c3e9405f2d5f34af65a3152cc0ae20ff4d2da9ae8c
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/PLR401700701
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 0xbcdc26a27d4b3d825bfac1c3e9405f2d5f34af65a3152cc0ae20ff4d2da9ae8c. 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/PLR401700701.
  date published: 2026-07-08T03:22:41Z
audio: Dam ci ptaszka
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 126.195
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.351
  additional property: Energy
    type: PropertyValue
    value: 0.299
  additional property: Speechiness
    type: PropertyValue
    value: 0.053
  additional property: Acousticness
    type: PropertyValue
    value: 0.988
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.621
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.35
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.27
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Minor