Kollda
type: MusicGroup
popularity: 2
followers: 1224
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf1979c427b963f69e3c7b50f0fae8d03bf948d762c5bd397d71fac3bf0e28689
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/75f2b323-1db0-41d2-ba33-68f752db7cbc.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/75f2b323-1db0-41d2-ba33-68f752db7cbc.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/75f2b323-1db0-41d2-ba33-68f752db7cbc
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
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 0xf1979c427b963f69e3c7b50f0fae8d03bf948d762c5bd397d71fac3bf0e28689. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/75f2b323-1db0-41d2-ba33-68f752db7cbc.json and https://artists.proofprofile.net/proofs/artist/75f2b323-1db0-41d2-ba33-68f752db7cbc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
album: Love no Copo
  type: MusicAlbum
  date published: 2018-07-02
album: Mentiras
  type: MusicAlbum
  date published: 2019-05-23
album: Mind
  type: MusicAlbum
  date published: 2019-12-04
album: Snowtome
  type: MusicAlbum
  date published: 2019-12-18
album: Duplex
  type: MusicAlbum
  date published: 2021-04-14
album: Bmw
  type: MusicAlbum
  date published: 2023-11-20
album: Vibe
  type: MusicAlbum
  date published: 2023-12-04
album: Neon
  type: MusicAlbum
  date published: 2023-12-18
album: 5Am
  type: MusicAlbum
  date published: 2023-12-20
album: Vento
  type: MusicAlbum
  date published: 2023-12-20
album: Café Amargo
  type: MusicAlbum
  date published: 2023-12-20
album: Chamadas
  type: MusicAlbum
  date published: 2023-12-20
album: Love
  type: MusicAlbum
  date published: 2023-12-20
album: Jeans
  type: MusicAlbum
  date published: 2024-01-24
album: Velar
  type: MusicAlbum
  date published: 2024-01-24
album: Fumaça
  type: MusicAlbum
  date published: 2024-01-24
album: Netflix
  type: MusicAlbum
  date published: 2024-01-24
album: Baby
  type: MusicAlbum
  date published: 2024-01-24
album: Reinicio
  type: MusicAlbum
  date published: 2024-07-01
album: Timer
  type: MusicAlbum
  date published: 2024-08-05
album: Pupila
  type: MusicAlbum
  date published: 2024-11-05
album: Alta Rotação
  type: MusicAlbum
  date published: 2024-12-18
album: Asfalto Cinzento
  type: MusicAlbum
  date published: 2025-02-17
album: Ratos
  type: MusicAlbum
  date published: 2025-04-01
  track: Ratos
    type: MusicRecording
    duration: PT2M14S
    duration ms: 134229
    explicit: true
    by artist: Kollda
    in album: Ratos
      type: MusicAlbum
      date published: 2025-04-01
    isrc code: QZMZ92523147
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-06T05:38:15+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf1fefcb886a516649018d9de55c9de4db95684261996a80b00e044aee6ae3fc3
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956891
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956891
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMZ92523147
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T07:16:32Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1fefcb886a516649018d9de55c9de4db95684261996a80b00e044aee6ae3fc3. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZMZ92523147.
      date published: 2026-07-06T07:16:32Z
    audio: Ratos
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 70.554
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.421
      additional property: Energy
        type: PropertyValue
        value: 0.346
      additional property: Speechiness
        type: PropertyValue
        value: 0.07
      additional property: Acousticness
        type: PropertyValue
        value: 0.149
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.121
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.572
      additional property: Loudness (dB)
        type: PropertyValue
        value: -13.676
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Sem Drama
  type: MusicAlbum
  date published: 2025-05-15
  track: Sem Drama
    type: MusicRecording
    duration: PT1M33S
    duration ms: 93260
    explicit: false
    by artist: Kollda
    in album: Sem Drama
      type: MusicAlbum
      date published: 2025-05-15
    isrc code: QZNJV2516315
    additional property: CopyrightID
    additional property: CopyrightStatus
    additional property: CopyrightRegisteredAt
    additional property: CopyrightChainExplorerURL
    additional property: OTSHash
    additional property: OTSBitcoinBlock
    additional property: OTSBitcoinBlockVerifyURL
    additional property: OTSVerificationAPI
    additional property: OTSTimestamp
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: Sem Drama

CopyrightID
type: PropertyValue

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-07-18T18:43:08+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xf5b57649609bffa77f10fcd50ce36b936bf8de7ce490702a194ba1ed4b2390c1

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 958601

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/958601

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJV2516315

OTSTimestamp
type: PropertyValue
value: 2026-07-18T19:27:02Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5b57649609bffa77f10fcd50ce36b936bf8de7ce490702a194ba1ed4b2390c1. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZNJV2516315.
date published: 2026-07-18T19:27:02Z

Sem Drama
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 112.07
additional property: Musical Key
  type: PropertyValue
  value: 0
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.878
additional property: Energy
  type: PropertyValue
  value: 0.351
additional property: Speechiness
  type: PropertyValue
  value: 0.096
additional property: Acousticness
  type: PropertyValue
  value: 0.008
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.093
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.404
additional property: Loudness (dB)
  type: PropertyValue
  value: -13.309
additional property: Key Name
  type: PropertyValue
  value: C
additional property: Mode Name
  type: PropertyValue
  value: Minor