Pith Number

pith:7IRUSQQK

pith:2000:7IRUSQQKMRICN4ZLKCFHAZFBZ5

not attested not anchored not stored refs pending

Master Equation for Hydrogen Recombination on Grain Surfaces

(3) Department of Physics, Catania, Gianfranco Vidali (3) ((1) The Racah Institute of Physics, Israel (2) Dipartimento di Metodologie Fisiche e Chimiche per l'Ingegneria, Italy, Itay Furman (1), Jerusalem, New York, Ofer Biham (1), Syracuse, Syracuse University, The Hebrew University, Universita' di Catania, USA), Valerio Pirronello (2)

arxiv:astro-ph/0012267 v1 · 2000-12-12 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7IRUSQQKMRICN4ZLKCFHAZFBZ5}

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	2026-07-04T16:17:47.269689Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa2349420a645026f32b508a7064a1cf7611c46bf0ef283f09564d4e90d679a2

Aliases

arxiv: astro-ph/0012267 · arxiv_version: astro-ph/0012267v1 · doi: 10.48550/arxiv.astro-ph/0012267 · pith_short_12: 7IRUSQQKMRIC · pith_short_16: 7IRUSQQKMRICN4ZL · pith_short_8: 7IRUSQQK

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/7IRUSQQKMRICN4ZLKCFHAZFBZ5 \
  | 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: fa2349420a645026f32b508a7064a1cf7611c46bf0ef283f09564d4e90d679a2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "81dcea545336d8b44c4aec0fbffd96368a273c5d51c9994c11e4feb43f2bce83",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-12-12T16:30:00Z",
    "title_canon_sha256": "10a337ed18ba9290cab00cf594b98400a87043ecc1152bf4c5155dbc963944ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0012267",
    "kind": "arxiv",
    "version": 1
  }
}