Pith Number

pith:72WRLNAN

pith:2009:72WRLNANMYA5L7MXPJCE4GAI53

not attested not anchored not stored refs pending

The Far Ultraviolet Spectral Signatures of Formaldehyde and Carbon Dioxide in Comets

(2) JHU/APL), Harold A. Weaver (2) ((1) JHU, Paul D. Feldman (1), Roxana E. Lupu (1), Stephan R. McCandliss (1)

arxiv:0905.1695 v1 · 2009-05-11 · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{72WRLNANMYA5L7MXPJCE4GAI53}

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	2026-05-18T04:29:43.058095Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fead15b40d6601d5fd977a444e1808eee2eb0a514c881bb4b31a3c83bcf422a2

Aliases

arxiv: 0905.1695 · arxiv_version: 0905.1695v1 · doi: 10.48550/arxiv.0905.1695 · pith_short_12: 72WRLNANMYA5 · pith_short_16: 72WRLNANMYA5L7MX · pith_short_8: 72WRLNAN

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/72WRLNANMYA5L7MXPJCE4GAI53 \
  | 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: fead15b40d6601d5fd977a444e1808eee2eb0a514c881bb4b31a3c83bcf422a2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ae74157a7173b62254046cc47c939e8fb5b4048965119ced351a983bf6e78737",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2009-05-11T20:02:42Z",
    "title_canon_sha256": "731c4a704463cc47e4fcc6767c4fca621a13edefb4a6de7a99626174bbc54bd2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.1695",
    "kind": "arxiv",
    "version": 1
  }
}