Mario Massa
type: MusicGroup
genre: avant-garde
genre: dark ambient
description: Luigi Paolo Mario Massa (29 May 1892 – 16 February 1956) was an Italian freestyle swimmer who competed in the 1908 Summer Olympics, in the 1912 Summer Olympics, and in the 1920 Summer Olympics. He was
popularity: 16
followers: 325
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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  value: 2026-06-15T08:21:23Z
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additional property: OTSVerifyInstructions
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  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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65fd0f065e9e1b2a92ffd871b462ff55d5dc60b991f9600c1ddc5821c3782b46. Chain 2 (Bitcoin): anchored in block 953762 (2026-06-15T08:21:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b9e5f5fc-011a-45a4-8887-38a1aeb79dc3.json and https://artists.proofprofile.net/proofs/artist/b9e5f5fc-011a-45a4-8887-38a1aeb79dc3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T08:21:23Z
  text: {"copyright_id":"0x65fd0f065e9e1b2a92ffd871b462ff55d5dc60b991f9600c1ddc5821c3782b46","name":"Mario Massa","registered_at":"2026-06-15T00:05:50Z","symbol":"NIM0619371","token_address":"0x8ddd8cac342bf4ece83693b03c822952d2df51fc","type":"artist","uuid":"b9e5f5fc-011a-45a4-8887-38a1aeb79dc3"}
album: Nam
  type: MusicAlbum
  date published: 2009
album: Fuori Da Le Mura (lofi mix)
  type: MusicAlbum
  date published: 2009-04-15
album: La Pietà (short edit)
  type: MusicAlbum
  date published: 2009-04-15
  track: La pietà - short edit
    type: MusicRecording
    duration: PT3M8S
    duration ms: 188015
    explicit: false
    by artist: Mario Massa
    in album: La Pietà (short edit)
      type: MusicAlbum
      date published: 2009-04-15
    genre: avant-garde
    genre: dark ambient
    isrc code: IT6LJ2300072
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    additional property: OTSTimestamp
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    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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f42664f74542dd0ff59d026465f785503bbdb10d3ec7ea11b02ff6fbdd1ad7c. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/IT6LJ2300072.
      date published: 2026-07-03T08:56:35Z
    audio: La pietà - short edit
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 74.228
      additional property: Musical Key
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        value: 2
      additional property: Mode (Major/Minor)
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        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.231
      additional property: Energy
        type: PropertyValue
        value: 0.057
      additional property: Speechiness
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        value: 0.038
      additional property: Acousticness
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        value: 0.987
      additional property: Instrumentalness
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        value: 0.914
      additional property: Liveness
        type: PropertyValue
        value: 0.097
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.066
      additional property: Loudness (dB)
        type: PropertyValue
        value: -19.826
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Felicitevolissimevolmente (lofi mix)
  type: MusicAlbum
  date published: 2009-04-15
album: Cause and Effect
  type: MusicAlbum
  date published: 2013-12-06
album: Cause and Effect
  type: MusicAlbum
  date published: 2013-12-06
album: Echi Nel Deserto (short edit)
  type: MusicAlbum
  date published: 2021-03-26
album: Old New Song (short 2)
  type: MusicAlbum
  date published: 2023-05-17
album: Melancholia (short 1)
  type: MusicAlbum
  date published: 2023-05-17
album: Walking on sea fields (short 1)
  type: MusicAlbum
  date published: 2023-05-17
album: Donnabella (short 4)
  type: MusicAlbum
  date published: 2023-05-17
album: X Cherry (short 2)
  type: MusicAlbum
  date published: 2023-05-17
album: Alessandra (short 2)
  type: MusicAlbum
  date published: 2023-05-17
album: The Rice Offering (short 1)
  type: MusicAlbum
  date published: 2023-05-17
album: Old New Song (short 1)
  type: MusicAlbum
  date published: 2023-05-17
album: Delicate
  type: MusicAlbum
  date published: 2023-05-17
album: Donnabella (short 2)
  type: MusicAlbum
  date published: 2023-05-17
album: Old New Song (short 4)
  type: MusicAlbum
  date published: 2023-05-17
album: The Rice Offering (short 2)
  type: MusicAlbum
  date published: 2023-05-17
album: Old New Song (short 3)
  type: MusicAlbum
  date published: 2023-05-17
album: Alessandra (short 1)
  type: MusicAlbum
  date published: 2023-05-17
album: X Cherry (short 1)
  type: MusicAlbum
  date published: 2023-05-17
album: Melancholia (short 2)
  type: MusicAlbum
  date published: 2023-05-17
album: Donnabella (short 1)
  type: MusicAlbum
  date published: 2023-05-17
album: Walking on sea fields (short 2)
album: Donnabella (short 3)
album: The Cherry Tree (short 2)
album: The Cherry Tree (short 3)
album: Toys I Twist (short 2)
album: The Cherry Tree (short 1)
album: Un Attimo Prima (short 2)
album: Toys I Twist (short 3)
album: Recode
album: Toys I Twist (short 1)
album: Un Attimo Prima (short 1)
album: Musica A Camere
album: Maria

Walking on sea fields (short 2)
type: MusicAlbum
date published: 2023-05-17

Donnabella (short 3)
type: MusicAlbum
date published: 2023-05-17

The Cherry Tree (short 2)
type: MusicAlbum
date published: 2024-11-22

The Cherry Tree (short 3)
type: MusicAlbum
date published: 2024-11-22

Toys I Twist (short 2)
type: MusicAlbum
date published: 2024-11-22

The Cherry Tree (short 1)
type: MusicAlbum
date published: 2024-11-22

Un Attimo Prima (short 2)
type: MusicAlbum
date published: 2024-11-22

Toys I Twist (short 3)
type: MusicAlbum
date published: 2024-11-22

Recode
type: MusicAlbum
date published: 2024-11-22

Toys I Twist (short 1)
type: MusicAlbum
date published: 2024-11-22

Un Attimo Prima (short 1)
type: MusicAlbum
date published: 2024-11-22

Musica A Camere
type: MusicAlbum
date published: 2025-03-28

Maria
type: MusicAlbum
date published: 2025-03-28