Semmy Stahlhammer
type: MusicGroup
genre: chamber music
popularity: 2
followers: 114
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x58376795620881bd2a0f70b49e819bad2798e0e7407b6fc16f1e93db6c2fdedc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954631
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954631
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d0a96f37-a159-4a71-ab06-7406eb30d4a7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d0a96f37-a159-4a71-ab06-7406eb30d4a7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d0a96f37-a159-4a71-ab06-7406eb30d4a7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T02:46:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x58376795620881bd2a0f70b49e819bad2798e0e7407b6fc16f1e93db6c2fdedc","name":"Semmy Stahlhammer","registered_at":"2026-06-21T01:15:06Z","symbol":"NIM1773745","token_address":"0xd4373f1ca535eb52377fdef8a74dc23ef8cb46ee","type":"artist","uuid":"d0a96f37-a159-4a71-ab06-7406eb30d4a7"}
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 0x58376795620881bd2a0f70b49e819bad2798e0e7407b6fc16f1e93db6c2fdedc. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d0a96f37-a159-4a71-ab06-7406eb30d4a7.json and https://artists.proofprofile.net/proofs/artist/d0a96f37-a159-4a71-ab06-7406eb30d4a7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T02:46:24Z
  text: {"copyright_id":"0x58376795620881bd2a0f70b49e819bad2798e0e7407b6fc16f1e93db6c2fdedc","name":"Semmy Stahlhammer","registered_at":"2026-06-21T01:15:06Z","symbol":"NIM1773745","token_address":"0xd4373f1ca535eb52377fdef8a74dc23ef8cb46ee","type":"artist","uuid":"d0a96f37-a159-4a71-ab06-7406eb30d4a7"}
album: Svenskt Sekelskifte 1900 (CD 3 & 4)
  type: MusicAlbum
  date published: 2010-10-01
album: Swedish Turn of Century, Vol. 1
  type: MusicAlbum
  date published: 2010-10-01
album: Svenskt Sekelskifte 1900 (CD 3 & 4)
  type: MusicAlbum
  date published: 2010-10-01
album: Opera I & II
  type: MusicAlbum
  date published: 2010-10-01
album: Music for Mood and Atmosphere - Stämningsmusik
  type: MusicAlbum
  date published: 2010-10-01
album: Marimbolino
  type: MusicAlbum
  date published: 2010-10-01
album: Marimbolino
  type: MusicAlbum
  date published: 2010-10-01
album: Music for Mood and Atmosphere - Stämningsmusik
  type: MusicAlbum
  date published: 2010-10-01
album: Swedish Turn of Century, Vol. 1
  type: MusicAlbum
  date published: 2010-10-01
album: Dawn Earth
  type: MusicAlbum
  date published: 2019-03-31
album: Hands Folded
  type: MusicAlbum
  date published: 2019-04-01