GEMMA
type: MusicGroup
description: Gemma or GEMMA may refer to: People and fictional characters Gemma (given name), including a list of people and fictional characters with the name Gemma (surname), including a list of people with t
popularity: 3
followers: 136
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1d153d602cb56f24993baa75baecd0d19bdda7e2a57685eb6b465d8161ad77d1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953984
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953984
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2cb957d1-d961-4ae7-bc2b-3da9b25c020d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2cb957d1-d961-4ae7-bc2b-3da9b25c020d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2cb957d1-d961-4ae7-bc2b-3da9b25c020d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T18:08:34Z
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d153d602cb56f24993baa75baecd0d19bdda7e2a57685eb6b465d8161ad77d1. Chain 2 (Bitcoin): anchored in block 953984 (2026-06-16T18:08:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2cb957d1-d961-4ae7-bc2b-3da9b25c020d.json and https://artists.proofprofile.net/proofs/artist/2cb957d1-d961-4ae7-bc2b-3da9b25c020d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T18:08:34Z
album: bittersweet
  type: MusicAlbum
  date published: 2021-12-16
album: eternity
  type: MusicAlbum
  date published: 2022-10-28
  track: eternity
    type: MusicRecording
    duration: PT3M27S
    duration ms: 207153
    explicit: false
    by artist: GEMMA
    in album: eternity
      type: MusicAlbum
      date published: 2022-10-28
    isrc code: AUGBT2215898
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T00:29:01+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x04db57b78aee682c15fd07aa4af239bdb85e3bbd600f5d896c07f6b1821aec53
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956725
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956725
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUGBT2215898
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T01:12:41Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04db57b78aee682c15fd07aa4af239bdb85e3bbd600f5d896c07f6b1821aec53. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/AUGBT2215898.
      date published: 2026-07-05T01:12:41Z
    audio: eternity
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 118.992
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.643
      additional property: Energy
        type: PropertyValue
        value: 0.652
      additional property: Speechiness
        type: PropertyValue
        value: 0.028
      additional property: Acousticness
        type: PropertyValue
        value: 0.428
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.276
      additional property: Liveness
        type: PropertyValue
        value: 0.11
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.499
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.801
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: eternity (remix)
  type: MusicAlbum
  date published: 2022-11-16
album: honeydew
  type: MusicAlbum
  date published: 2023-11-01
album: change your mind
  type: MusicAlbum
  date published: 2024-02-22
album: STUCK IN LIMBO
  type: MusicAlbum
  date published: 2024-05-23
album: bittersweet
  type: MusicAlbum
  date published: 2025-02-14