Pith Number

pith:XRN5INQ2

pith:2012:XRN5INQ26DBKI2EYQXTDANAZY5

not attested not anchored not stored refs pending

On the relevance of polyynyl-substituted PAHs to astrophysics

C. B\"orger, C. J\"ager, F. Huisken, G. Rouill\'e, G. Theumer, H.-J. Kn\"olker, I. Bauer, M. Steglich, R. Czerwonka, Th. Henning, Y. Carpentier

arxiv:1204.0887 v1 · 2012-04-04 · 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{XRN5INQ26DBKI2EYQXTDANAZY5}

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	2026-05-18T02:54:39.777194Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bc5bd4361af0c2a4689885e6303419c774b7b7f06872b02105d7251b2fce47cf

Aliases

arxiv: 1204.0887 · arxiv_version: 1204.0887v1 · doi: 10.48550/arxiv.1204.0887 · pith_short_12: XRN5INQ26DBK · pith_short_16: XRN5INQ26DBKI2EY · pith_short_8: XRN5INQ2

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/XRN5INQ26DBKI2EYQXTDANAZY5 \
  | 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: bc5bd4361af0c2a4689885e6303419c774b7b7f06872b02105d7251b2fce47cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "765f6c26b7a66cfb8cd5aff17c2fd1977b0aa2db3682086c988ac1d76f25a94f",
    "cross_cats_sorted": [
      "physics.chem-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-04-04T08:28:15Z",
    "title_canon_sha256": "d080c4da16698bbecb84623053ad5ff3ee919f7e271d879072eac7302b7c6622"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.0887",
    "kind": "arxiv",
    "version": 1
  }
}