Pith Number

pith:U4VCSMLX

pith:2013:U4VCSMLX4I7PECYPKTYQRWFP4F

not attested not anchored not stored refs pending

Astrochemistry: Synthesis and Modelling

Eric Herbst, Herma M. Cuppen, Valentine Wakelam

arxiv:1309.7792 v1 · 2013-09-30 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U4VCSMLX4I7PECYPKTYQRWFP4F}

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	2026-05-18T03:11:48.267876Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a72a293177e23ef20b0f54f108d8afe15fde8eef67d396033ce51759f50e522d

Aliases

arxiv: 1309.7792 · arxiv_version: 1309.7792v1 · doi: 10.48550/arxiv.1309.7792 · pith_short_12: U4VCSMLX4I7P · pith_short_16: U4VCSMLX4I7PECYP · pith_short_8: U4VCSMLX

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/U4VCSMLX4I7PECYPKTYQRWFP4F \
  | 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: a72a293177e23ef20b0f54f108d8afe15fde8eef67d396033ce51759f50e522d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8395286bd18271d85dfe9683c0fcb86ea0fa69707e1c169aabc521a71b01f11f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-09-30T10:35:33Z",
    "title_canon_sha256": "f80a05fb13a4978e43dcc6c1d20c1c144ca2ce9da41aa4506c26764fc7460806"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.7792",
    "kind": "arxiv",
    "version": 1
  }
}