Col.lectiva
type: MusicGroup
popularity: 15
followers: 405
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcc50d4d84074d6a3af45772970d21538d533940fa6d22ce8628fbf0749b68c0c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953842
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953842
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fbf1a5ac-58e8-46af-b7be-c8d0cebec179.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fbf1a5ac-58e8-46af-b7be-c8d0cebec179.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fbf1a5ac-58e8-46af-b7be-c8d0cebec179
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T22:22:30Z
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 0xcc50d4d84074d6a3af45772970d21538d533940fa6d22ce8628fbf0749b68c0c. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fbf1a5ac-58e8-46af-b7be-c8d0cebec179.json and https://artists.proofprofile.net/proofs/artist/fbf1a5ac-58e8-46af-b7be-c8d0cebec179.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T22:22:30Z
track: Quan Somrius
  type: MusicRecording
  duration: PT4M6S
  duration ms: 246266
  explicit: false
  by artist: Col.lectiva
  in album: Altres Cançons de Nadal
    type: MusicAlbum
    date published: 2000-12-01
  isrc code: ES5950200914
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-07T08:26:28+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x64260b9f9f2d9be02a3fe460fce6066704358621bdbf5152db6bbb562195eceb
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953528
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/953528
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES5950200914
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T15:41:10Z
  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 0x64260b9f9f2d9be02a3fe460fce6066704358621bdbf5152db6bbb562195eceb. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ES5950200914.
    date published: 2026-06-13T15:41:10Z
  audio: Quan Somrius
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 137.037
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.675
    additional property: Energy
      type: PropertyValue
      value: 0.685
    additional property: Speechiness
      type: PropertyValue
      value: 0.028
    additional property: Acousticness
      type: PropertyValue
      value: 0.278
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.25
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.761
    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.393
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Quan Somrius
  type: MusicRecording
  duration: PT4M6S
  duration ms: 246266
  explicit: false
  by artist: Col.lectiva
  in album: Un Altre Nadal de Cançons
    type: MusicAlbum
    date published: 2015-12-07
  isrc code: ES5950200914
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-07T08:26:28+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x64260b9f9f2d9be02a3fe460fce6066704358621bdbf5152db6bbb562195eceb
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957145
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957145
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES5950200914
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T08:56:20Z
  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 0x64260b9f9f2d9be02a3fe460fce6066704358621bdbf5152db6bbb562195eceb. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ES5950200914.
    date published: 2026-07-08T08:56:20Z
  audio: Quan Somrius
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 137.037
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.675
    additional property: Energy
      type: PropertyValue
      value: 0.686
    additional property: Speechiness
      type: PropertyValue
      value: 0.028
    additional property: Acousticness
      type: PropertyValue
      value: 0.278
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.25
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.762
    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.393
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name

Mode Name
type: PropertyValue
value: Major