Pith Number

pith:VTNQQF4J

pith:2021:VTNQQF4JOIZKAVXBMRC7AAGYXC

not attested not anchored not stored refs pending

Systems Astrochemistry: A New Doctrine for Experimental Studies

Duncan V. Mifsud, James S. Urquhart, Nigel J. Mason, Perry A. Hailey

arxiv:2107.02924 v1 · 2021-07-06 · astro-ph.EP · astro-ph.GA · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VTNQQF4JOIZKAVXBMRC7AAGYXC}

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	2026-07-05T03:51:07.978812Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

acdb0817897232a056e16445f000d8b8bb711dfa6fac820dc26c683789cf64fd

Aliases

arxiv: 2107.02924 · arxiv_version: 2107.02924v1 · doi: 10.48550/arxiv.2107.02924 · pith_short_12: VTNQQF4JOIZK · pith_short_16: VTNQQF4JOIZKAVXB · pith_short_8: VTNQQF4J

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/VTNQQF4JOIZKAVXBMRC7AAGYXC \
  | 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: acdb0817897232a056e16445f000d8b8bb711dfa6fac820dc26c683789cf64fd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "725b30654eec4b02213d43d6c2909ebe18eff5e2fa3df96c1749cb4904c5c185",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.IM"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2021-07-06T22:20:19Z",
    "title_canon_sha256": "1309c272bca41f657c58978b339f90fddc85978df93706186c36fc17dcbf8947"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.02924",
    "kind": "arxiv",
    "version": 1
  }
}