Pith Number

pith:T7ARZKBI

pith:2007:T7ARZKBICYY34S2RHU2E3W7GDM

not attested not anchored not stored refs pending

Human breath analysis via cavity-enhanced optical frequency comb spectroscopy

David Balslev-Clausen, Jun Ye, Matthew S. Kirchner, Michael J. Thorpe

arxiv:0708.3205 v2 · 2007-08-23 · physics.optics · physics.atom-ph · physics.chem-ph · physics.ins-det

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{T7ARZKBICYY34S2RHU2E3W7GDM}

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	2026-05-18T02:16:22.077461Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9fc11ca8281631be4b513d344ddbe61b12a9d006742516a6c201fc4ad710b9a1

Aliases

arxiv: 0708.3205 · arxiv_version: 0708.3205v2 · doi: 10.48550/arxiv.0708.3205 · pith_short_12: T7ARZKBICYY3 · pith_short_16: T7ARZKBICYY34S2R · pith_short_8: T7ARZKBI

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/T7ARZKBICYY34S2RHU2E3W7GDM \
  | 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: 9fc11ca8281631be4b513d344ddbe61b12a9d006742516a6c201fc4ad710b9a1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cd8dd064cc80bea8c99b2f28be0b72913739b9a866f259c40317fb5ba6cd7082",
    "cross_cats_sorted": [
      "physics.atom-ph",
      "physics.chem-ph",
      "physics.ins-det"
    ],
    "license": "",
    "primary_cat": "physics.optics",
    "submitted_at": "2007-08-23T16:31:58Z",
    "title_canon_sha256": "293b803077930f58ceeb691a66be8273413aacf77336d4ecdb0ffff73f368234"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0708.3205",
    "kind": "arxiv",
    "version": 2
  }
}