Pith Number

pith:VPT7QQCH

pith:2012:VPT7QQCHMMIW4DNBMZKD3RJX4M

not attested not anchored not stored refs pending

Review of OCS gas-phase reactions in dark cloud chemical models

Astrid Bergeat, Jean-Christophe Loison, Kevin M. Hickson, Philippe Halvick, Valentine Wakelam

arxiv:1201.4256 v1 · 2012-01-20 · astro-ph.GA · physics.chem-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{VPT7QQCHMMIW4DNBMZKD3RJX4M}

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	2026-05-18T01:58:46.309226Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

abe7f8404763116e0da166543dc537e30ee19b2b131650c1e77cb515230026f5

Aliases

arxiv: 1201.4256 · arxiv_version: 1201.4256v1 · doi: 10.48550/arxiv.1201.4256 · pith_short_12: VPT7QQCHMMIW · pith_short_16: VPT7QQCHMMIW4DNB · pith_short_8: VPT7QQCH

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/VPT7QQCHMMIW4DNBMZKD3RJX4M \
  | 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: abe7f8404763116e0da166543dc537e30ee19b2b131650c1e77cb515230026f5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8bd987774e0977572c095669ec03fc94a82565c24ca1c0a8114c2839ce252369",
    "cross_cats_sorted": [
      "physics.chem-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-01-20T10:40:45Z",
    "title_canon_sha256": "6cff6e3b0390a495001cc10df4d3daa18f42e5774306c29da57dd803dc40784e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.4256",
    "kind": "arxiv",
    "version": 1
  }
}