Cobla Montgrins
type: MusicGroup
genre: traditional music
popularity: 10
followers: 905
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa6a3472a1fc0e827b2a6984fe75a46dad7b631b1d1b27a407e9f9e7239294ccd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953938
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953938
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2077863d-a0e8-462d-9923-596122e0989e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2077863d-a0e8-462d-9923-596122e0989e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2077863d-a0e8-462d-9923-596122e0989e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T11:35:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa6a3472a1fc0e827b2a6984fe75a46dad7b631b1d1b27a407e9f9e7239294ccd","name":"Cobla Montgrins","registered_at":"2026-06-16T00:56:30Z","symbol":"NIM0886859","token_address":"0xac0520329967319d0dcfd154d70e3f0f8358aed9","type":"artist","uuid":"2077863d-a0e8-462d-9923-596122e0989e"}
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 0xa6a3472a1fc0e827b2a6984fe75a46dad7b631b1d1b27a407e9f9e7239294ccd. Chain 2 (Bitcoin): anchored in block 953939 (2026-06-16T11:40:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2077863d-a0e8-462d-9923-596122e0989e.json and https://artists.proofprofile.net/proofs/artist/2077863d-a0e8-462d-9923-596122e0989e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T11:40:13Z
  text: {"copyright_id":"0xa6a3472a1fc0e827b2a6984fe75a46dad7b631b1d1b27a407e9f9e7239294ccd","name":"Cobla Montgrins","registered_at":"2026-06-16T00:56:30Z","symbol":"NIM0886859","token_address":"0xac0520329967319d0dcfd154d70e3f0f8358aed9","type":"artist","uuid":"2077863d-a0e8-462d-9923-596122e0989e"}
album: Música Catalana Contemporània
  type: MusicAlbum
  date published: 1990-06-16
album: Sardanes A Artés
  type: MusicAlbum
  date published: 1991-06-17
album: Sardanes A Sant Joan De Les Abadesses
  type: MusicAlbum
  date published: 1997-08-02
album: Sardanes del Mestre Manel Balasch
  type: MusicAlbum
  date published: 1997-09-22
album: El Ball dels Pabordes
  type: MusicAlbum
  date published: 1997-09-26
album: Sardanes de compositors de la Terra Alta
  type: MusicAlbum
  date published: 1997-09-29
album: Sempre Sardanes
  type: MusicAlbum
  date published: 1998
album: Sardanes a Olesa
  type: MusicAlbum
  date published: 1998-10-04
album: Sempre Sardanes - Album 1
  type: MusicAlbum
  date published: 1999
album: Per Cireres, Sant Climent
  type: MusicAlbum
  date published: 1999-11-04
album: Els nostres compositors
  type: MusicAlbum
  date published: 2003
album: Sardanova
  type: MusicAlbum
  date published: 2005-01-01
album: Sardanova
  type: MusicAlbum
  date published: 2005-01-01
album: Sempre Sardanes - Album 4
  type: MusicAlbum
  date published: 2006
album: Jordi Molina (Sardanes)
  type: MusicAlbum
  date published: 2007-01-01
album: Jordi Molina (Sardanes)
  type: MusicAlbum
  date published: 2007-01-01
album: Cobla Montgrins: 150 anys de la Tenora
  type: MusicAlbum
  date published: 2008
album: Sempre Sardanes Àlbum 6
  type: MusicAlbum
  date published: 2008-04-15
album: Somni Entre Muntanyes
  type: MusicAlbum
  date published: 2008-05-04
album: Sardanes a Palamós / Ballant Sardanes a Palamós (Vol. 8 / Vol. 3)
  type: MusicAlbum
  date published: 2009-01-01
album: Sardanes a Palamós / Ballant Sardanes a Palamós (Vol. 8 / Vol. 3)
  type: MusicAlbum
  date published: 2009-01-01
album: Sardanes a Palamós (Vol. 9)
  type: MusicAlbum
  date published: 2010-04-12
album: Sardanes a Palamós / Ballant Sardanes a Palamós (Vol. 10 / Vol. 4)
  type: MusicAlbum
  date published: 2011-04-12
album: Sardanes a Palamós / Ballant Sardanes a Palamós (Vol. 10 / Vol. 4)
  type: MusicAlbum
  date published: 2011-04-12
album: Reptes Extrems
  type: MusicAlbum
  date published: 2021-07-09
album: Arran d'onada
  type: MusicAlbum
  date published: 2021-10-21
album: Sa Roncadora
  type: MusicAlbum
  date published: 2021-12-18
album: Cobla Virtuosa - Sardanes Obligades
  type: MusicAlbum
  date published: 2022-08-12
album: Cobla a 4 Veus: Un Viatge Musical
  type: MusicAlbum
  date published: 2024-12-16
album: 140 Anys de Sardanes
  type: MusicAlbum
  date published: 2024-12-16
track: Com he Fet Sempre

Com he Fet Sempre
type: MusicRecording
duration: PT3M33S
duration ms: 213211
explicit: false
by artist: Quico Pi de la Serra
by artist: Cobla Montgrins
in album: Com he Fet Sempre
  type: MusicAlbum
  date published: 2009
isrc code: QM6N22481879
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcf45944c21f5a84fe26c8a9b9db8f195b338286fd6cb9c1eb9a1c139caccc14c
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N22481879
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T18:39:05Z
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: 957073
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-07T18:39:05+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 0xcf45944c21f5a84fe26c8a9b9db8f195b338286fd6cb9c1eb9a1c139caccc14c. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QM6N22481879.
  date published: 2026-07-07T18:39:05Z
audio: Com he Fet Sempre
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 121.114
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.488
  additional property: Energy
    type: PropertyValue
    value: 0.389
  additional property: Speechiness
    type: PropertyValue
    value: 0.031
  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0.004
  additional property: Liveness
    type: PropertyValue
    value: 0.097
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.472
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.237
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major