Pith Number

pith:6CUPHGYX

pith:2017:6CUPHGYXBIN6SDEY3PNWZ4F2NW

not attested not anchored not stored refs pending

Quartz-enhanced photoacoustic spectroscopy as a platform for non-invasive trace gas analyser targeting breath analysis

Andre peremans, Jan C. Petersen, J-F. Focant, Laurent Lamard, Mikael Lassen, Yuyang Feng

arxiv:1704.07442 v1 · 2017-04-24 · physics.ins-det · physics.optics

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6CUPHGYXBIN6SDEY3PNWZ4F2NW}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T00:45:29.833192Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f0a8f39b170a1be90c98dbdb6cf0ba6d8bef6ed379e82e6ac657dc34122c65e1

Aliases

arxiv: 1704.07442 · arxiv_version: 1704.07442v1 · doi: 10.48550/arxiv.1704.07442 · pith_short_12: 6CUPHGYXBIN6 · pith_short_16: 6CUPHGYXBIN6SDEY · pith_short_8: 6CUPHGYX

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/6CUPHGYXBIN6SDEY3PNWZ4F2NW \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: f0a8f39b170a1be90c98dbdb6cf0ba6d8bef6ed379e82e6ac657dc34122c65e1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e7db6aaa79e0b2e85cf5b8d0ac8e54136fa45674824b66fc0f29e35e1720345",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ins-det",
    "submitted_at": "2017-04-24T20:07:22Z",
    "title_canon_sha256": "017f0ba8f3489d84062503bf3e6af37989d16b27e2dbc2a6c1c1a2ba8c61116e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.07442",
    "kind": "arxiv",
    "version": 1
  }
}