Marjo Leinonen
type: MusicGroup
genre: finnish hip hop
genre: finnish pop
genre: finnish rock
genre: go-go
popularity: 9
followers: 1102
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4429e107017ab5ce2ce0d353bb5cc1abbe6db998911d226bd5122ed4e912c24f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/83c4a921-20c4-4ee8-abef-5d48ee8da3fc.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/83c4a921-20c4-4ee8-abef-5d48ee8da3fc.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/83c4a921-20c4-4ee8-abef-5d48ee8da3fc
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4429e107017ab5ce2ce0d353bb5cc1abbe6db998911d226bd5122ed4e912c24f","name":"Marjo Leinonen","registered_at":"2026-06-17T11:33:10Z","symbol":"NIM1382395","token_address":"0x1fac5702267588c30fa8e30c809c44936bde5040","type":"artist","uuid":"83c4a921-20c4-4ee8-abef-5d48ee8da3fc"}
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 0x4429e107017ab5ce2ce0d353bb5cc1abbe6db998911d226bd5122ed4e912c24f. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/83c4a921-20c4-4ee8-abef-5d48ee8da3fc.json and https://artists.proofprofile.net/proofs/artist/83c4a921-20c4-4ee8-abef-5d48ee8da3fc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x4429e107017ab5ce2ce0d353bb5cc1abbe6db998911d226bd5122ed4e912c24f","name":"Marjo Leinonen","registered_at":"2026-06-17T11:33:10Z","symbol":"NIM1382395","token_address":"0x1fac5702267588c30fa8e30c809c44936bde5040","type":"artist","uuid":"83c4a921-20c4-4ee8-abef-5d48ee8da3fc"}
album: Marjo Leinonen Huff 'n' Puff
  type: MusicAlbum
  date published: 2012-09-14
album: New York Times
  type: MusicAlbum
  date published: 2018-04-20
album: Paha pysy pois
  type: MusicAlbum
  date published: 2019-12-10
album: Vanha Schäferi
  type: MusicAlbum
  date published: 2020-02-21
album: Loose Hat
  type: MusicAlbum
  date published: 2023-02-15
album: Holy Roller
  type: MusicAlbum
  date published: 2023-03-31
track: Huina Haina
track: Kaikessa Soi Blues

Huina Haina
type: MusicRecording
duration: PT3M2S
duration ms: 182160
explicit: false
by artist: Niko Ahvonen
by artist: Marjo Leinonen
in album: Ipanapa 1
  type: MusicAlbum
  date published: 2011-02-25
isrc code: FIEFE0700473
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-27T07:23:31+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbf7229cd4d0efbd7174eb2fd53f5451ad907dba6558b80dd9114f901ed865053
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FIEFE0700473
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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: 956304
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:55:08+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 0xbf7229cd4d0efbd7174eb2fd53f5451ad907dba6558b80dd9114f901ed865053. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FIEFE0700473.
  date published: 2026-07-02T03:55:08Z
audio: Huina Haina
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 117.49
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.7
  additional property: Energy
    type: PropertyValue
    value: 0.544
  additional property: Speechiness
    type: PropertyValue
    value: 0.03
  additional property: Acousticness
    type: PropertyValue
    value: 0.713
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.06
  additional property: Liveness
    type: PropertyValue
    value: 0.105
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.925
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.487
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Kaikessa Soi Blues
type: MusicRecording
duration: PT3M1S
duration ms: 181200
explicit: false
by artist: Marjo Leinonen
in album: Kaikki Paitsi Mårtenson On Turhaa
  type: MusicAlbum
  date published: 2006-01-01
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa04565f595e9ba001c229a7aa9b596ff0c2c790018c35536c70b7a204d3bdffb. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/FIEFP0600043.
  date published: 2026-07-30T09:58:01Z
audio: Kaikessa Soi Blues
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 130.931
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.539
  additional property: Energy
    type: PropertyValue
    value: 0.833
  additional property: Speechiness
    type: PropertyValue
    value: 0.03
  additional property: Acousticness
    type: PropertyValue
    value: 0.037
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.077
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.55
  additional property: Loudness (dB)
    type: PropertyValue
    value: -8.081
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: FIEFP0600043
additional property: CopyrightID
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: 960241
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T09:58:01+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FIEFP0600043
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960241
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960241
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T09:58:01+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 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