Nico Efstratiou
type: MusicGroup
genre: 3 step
genre: afro house
genre: organic house
popularity: 6
followers: 260
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x891cfe3334a0d2570aba3f199409f96e9a757090e8764be8cea5cb2a3b4e110a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953947
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953947
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/21e1aee5-4afa-4b67-a187-e4402ded1536.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/21e1aee5-4afa-4b67-a187-e4402ded1536.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/21e1aee5-4afa-4b67-a187-e4402ded1536
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T13:14:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x891cfe3334a0d2570aba3f199409f96e9a757090e8764be8cea5cb2a3b4e110a","name":"Nico Efstratiou","registered_at":"2026-06-16T01:20:35Z","symbol":"NIM0892605","token_address":"0xa5c83670fb14c6704915ca2754e7a10571edcf64","type":"artist","uuid":"21e1aee5-4afa-4b67-a187-e4402ded1536"}
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 0x891cfe3334a0d2570aba3f199409f96e9a757090e8764be8cea5cb2a3b4e110a. Chain 2 (Bitcoin): anchored in block 953947 (2026-06-16T13:14:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/21e1aee5-4afa-4b67-a187-e4402ded1536.json and https://artists.proofprofile.net/proofs/artist/21e1aee5-4afa-4b67-a187-e4402ded1536.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:14:26Z
  text: {"copyright_id":"0x891cfe3334a0d2570aba3f199409f96e9a757090e8764be8cea5cb2a3b4e110a","name":"Nico Efstratiou","registered_at":"2026-06-16T01:20:35Z","symbol":"NIM0892605","token_address":"0xa5c83670fb14c6704915ca2754e7a10571edcf64","type":"artist","uuid":"21e1aee5-4afa-4b67-a187-e4402ded1536"}
album: Aplos (Extended Mix)
  type: MusicAlbum
  date published: 2020-11-06
album: Peace of Mind (Extended)
  type: MusicAlbum
  date published: 2021-04-16
album: Serenity - Extended Mix
  type: MusicAlbum
  date published: 2021-05-07
album: Hummingbird
  type: MusicAlbum
  date published: 2021-05-28
album: Soma Páei
  type: MusicAlbum
  date published: 2022-07-15
album: Soma Páei (Midnight Edit)
  type: MusicAlbum
  date published: 2022-08-12
album: Pórta
  type: MusicAlbum
  date published: 2023-02-24
album: Sound Of Lunar (Camerøn Remix)
  type: MusicAlbum
  date published: 2023-03-10
album: Sound Of Lunar
  type: MusicAlbum
  date published: 2023-03-10
album: Ndibize
  type: MusicAlbum
  date published: 2024-01-12
album: Ndibize (Aytiwan Remix)
  type: MusicAlbum
  date published: 2024-01-12
album: Ndibize (Mahandana Remix)
  type: MusicAlbum
  date published: 2024-01-12
album: Ndibize (Aytiwan Remix)
  type: MusicAlbum
  date published: 2024-01-12
album: Ndibize
  type: MusicAlbum
  date published: 2024-01-26
album: Umthandazo
  type: MusicAlbum
  date published: 2024-08-30
album: The Traveler
  type: MusicAlbum
  date published: 2024-09-20
album: Africa Calls (Edit)
  type: MusicAlbum
  date published: 2024-11-08
album: Africa Calls (Remixes)
  type: MusicAlbum
  date published: 2024-12-06
album: Soul Catcher
  type: MusicAlbum
  date published: 2025-03-28
track: Isthembiso
track: Isthembiso - Nico's Midnight Edit

Isthembiso
type: MusicRecording
duration: PT2M50S
duration ms: 170000
explicit: false
by artist: Sickluv
by artist: Nico Efstratiou
by artist: MK Soulz
in album: Isthembiso
  type: MusicAlbum
  date published: 2024-02-23
isrc code: QZFYY2486536
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-22T11:22:28+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xeee5ac00fd4beaccdfe12ba8274f8abed219a96aff7854b01df2e39ddf220822
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/QZFYY2486536
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08+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: 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 0xeee5ac00fd4beaccdfe12ba8274f8abed219a96aff7854b01df2e39ddf220822. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZFYY2486536.
  date published: 2026-07-02T05:09:12Z
audio: Isthembiso
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 131.616
  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: 0.749
  additional property: Energy
    type: PropertyValue
    value: 0.769
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.061
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.01
  additional property: Liveness
    type: PropertyValue
    value: 0.177
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.188
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.482
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Isthembiso - Nico's Midnight Edit
type: MusicRecording
duration: PT2M58S
duration ms: 178032
explicit: false
by artist: Sickluv
by artist: Nico Efstratiou
by artist: MK Soulz
in album: Isthembiso (Nico's Midnight Edit)
  type: MusicAlbum
  date published: 2024-07-05
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5db1821471ae5da391430c921f1576ab4fdfea5e0be71cf418041bef232c1a42. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/GBKQU2454664.
  date published: 2026-07-30T06:39:12Z
audio: Isthembiso - Nico's Midnight Edit
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 132.971
  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: 0.79
  additional property: Energy
    type: PropertyValue
    value: 0.722
  additional property: Speechiness
    type: PropertyValue
    value: 0.051
  additional property: Acousticness
    type: PropertyValue
    value: 0.003
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.455
  additional property: Liveness
    type: PropertyValue
    value: 0.165
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.585
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.199
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: GBKQU2454664
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: 960216
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T06:39:12+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKQU2454664
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960216
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960216
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T06:39:12+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