Pith Number

pith:WZDBMCGG

pith:2023:WZDBMCGGAK342EYJBGGTQN7VID

not attested not anchored not stored refs pending

Chemical models of adenine precursors cyanamide and carbodiimide in the interstellar medium

Donghui Quan, Guoming Zhao, Jarken Esimbek, Long-Fei Chen, Runxia Li, Xia Zhang, Yan Zhou

arxiv:2303.01854 v1 · 2023-03-03 · astro-ph.GA · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WZDBMCGGAK342EYJBGGTQN7VID}

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	2026-07-05T05:47:50.037500Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b6461608c602b7cd1309098d3837f540e3a496961957b29d889695ed42a9a5ee

Aliases

arxiv: 2303.01854 · arxiv_version: 2303.01854v1 · doi: 10.48550/arxiv.2303.01854 · pith_short_12: WZDBMCGGAK34 · pith_short_16: WZDBMCGGAK342EYJ · pith_short_8: WZDBMCGG

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/WZDBMCGGAK342EYJBGGTQN7VID \
  | 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: b6461608c602b7cd1309098d3837f540e3a496961957b29d889695ed42a9a5ee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f814e3d80ec0ca9d46d3d1ada84c144e3b1c77f87050080f39a992f1d870b016",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2023-03-03T11:16:17Z",
    "title_canon_sha256": "faaf33ccb38d75b6af70ada499dceb3a657038c5ccd4b9425608c2aed2e7ec40"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2303.01854",
    "kind": "arxiv",
    "version": 1
  }
}