Xixel Langa
type: MusicGroup
genre: afroswing
genre: smooth r&b
popularity: 4
followers: 802
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x910e3ee2ba41d6785101c16fe64865a33b25af833c5ade707ba916a61f1599ce
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954705
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954705
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f0a875f0-020f-495d-91cc-f12be08581ca.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f0a875f0-020f-495d-91cc-f12be08581ca.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f0a875f0-020f-495d-91cc-f12be08581ca
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T13:42:37Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x910e3ee2ba41d6785101c16fe64865a33b25af833c5ade707ba916a61f1599ce","name":"Xixel Langa","registered_at":"2026-06-21T12:56:18Z","symbol":"NIM1929364","token_address":"0x6d64665bfaa9ab0bee17fc48d880055a05164a4f","type":"artist","uuid":"f0a875f0-020f-495d-91cc-f12be08581ca"}
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 0x910e3ee2ba41d6785101c16fe64865a33b25af833c5ade707ba916a61f1599ce. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f0a875f0-020f-495d-91cc-f12be08581ca.json and https://artists.proofprofile.net/proofs/artist/f0a875f0-020f-495d-91cc-f12be08581ca.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T13:42:37Z
  text: {"copyright_id":"0x910e3ee2ba41d6785101c16fe64865a33b25af833c5ade707ba916a61f1599ce","name":"Xixel Langa","registered_at":"2026-06-21T12:56:18Z","symbol":"NIM1929364","token_address":"0x6d64665bfaa9ab0bee17fc48d880055a05164a4f","type":"artist","uuid":"f0a875f0-020f-495d-91cc-f12be08581ca"}
album: Inside Me
  type: MusicAlbum
  date published: 2017-02-28
album: Mahube Zenzele
  type: MusicAlbum
  date published: 2021-04-09
album: B'ava
  type: MusicAlbum
  date published: 2023-07-21
album: Maputo
  type: MusicAlbum
  date published: 2023-08-25
album: Ntumbuluku
  type: MusicAlbum
  date published: 2023-09-14
album: Vatekile
  type: MusicAlbum
  date published: 2023-10-27
track: Ainda dá para sorrir

Ainda dá para sorrir
type: MusicRecording
duration: PT4M28S
duration ms: 268480
explicit: false
by artist: Prince Solomon KalashniKov
by artist: Puzzle
by artist: Zagalote
by artist: Xixel Langa
in album: KalashniKov
  type: MusicAlbum
  date published: 2025-01-31
isrc code: QZFZ42501099
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T09:30:12+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc51a561ebc46a0e0a118435d85f76b8bc1e226cdc096b868f062bda3abdb08f4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957819
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957819
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ42501099
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-13T07:53:33+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: 957819
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-13T07:53:33+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 0xc51a561ebc46a0e0a118435d85f76b8bc1e226cdc096b868f062bda3abdb08f4. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/QZFZ42501099.
  date published: 2026-07-13T07:54:01Z
audio: Ainda dá para sorrir
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 106.266
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.552
  additional property: Energy
    type: PropertyValue
    value: 0.737
  additional property: Speechiness
    type: PropertyValue
    value: 0.367
  additional property: Acousticness
    type: PropertyValue
    value: 0.371
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.371
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.717
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.084
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Minor