Pith Number

pith:ILQRQL2H

pith:2012:ILQRQL2HO5XM7XLKT3XKUPNBIG

not attested not anchored not stored refs pending

The changing rotational excitation of C_3 in comet 9P/Tempel 1 during Deep Impact

Hy Spinrad, Imke de Pater, M\'at\'e \'Ad\'amkovics

arxiv:1207.1346 v1 · 2012-07-05 · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ILQRQL2HO5XM7XLKT3XKUPNBIG}

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	2026-05-18T01:56:34.189669Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

42e1182f47776ecfdd6a9eeeaa3da141a5c87defee1ffb77856ccd97e2307716

Aliases

arxiv: 1207.1346 · arxiv_version: 1207.1346v1 · doi: 10.48550/arxiv.1207.1346 · pith_short_12: ILQRQL2HO5XM · pith_short_16: ILQRQL2HO5XM7XLK · pith_short_8: ILQRQL2H

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/ILQRQL2HO5XM7XLKT3XKUPNBIG \
  | 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: 42e1182f47776ecfdd6a9eeeaa3da141a5c87defee1ffb77856ccd97e2307716

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c9ca60e5ac13ee09fe8075d4f022f5a20357379675d84df4c78dfbe3e09f2ceb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2012-07-05T19:58:00Z",
    "title_canon_sha256": "bd55f097b9be576c4bec4380966a7b701a208e965542845471d048c80727b56c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.1346",
    "kind": "arxiv",
    "version": 1
  }
}