Pith Number

pith:XJKIFH52

pith:2012:XJKIFH52LW4JX4LISKW43F3NI4

not attested not anchored not stored refs pending

Chandra Observations of the Collisional Ring Galaxy NGC 922

A. H. Prestwich, A. Wolter, A. Zezas, G. Trinchieri, J. L. Galache. T. Linden, R. Kilgard, T. P. Roberts, V. Kalogara

arxiv:1212.1124 v1 · 2012-12-05 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XJKIFH52LW4JX4LISKW43F3NI4}

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	2026-05-18T03:39:05.773600Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ba54829fba5db89bf16892adcd976d473d4d3b8910220f055f26eedabe705412

Aliases

arxiv: 1212.1124 · arxiv_version: 1212.1124v1 · doi: 10.48550/arxiv.1212.1124 · pith_short_12: XJKIFH52LW4J · pith_short_16: XJKIFH52LW4JX4LI · pith_short_8: XJKIFH52

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/XJKIFH52LW4JX4LISKW43F3NI4 \
  | 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: ba54829fba5db89bf16892adcd976d473d4d3b8910220f055f26eedabe705412

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "932a33d09f0820f6c58a29decfabea0c88b480c627d808c22986ba414a6e17f8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2012-12-05T18:29:42Z",
    "title_canon_sha256": "3f66606fa2e7cae52f7089bce2fa10195ebfd6a623357468656673e94a328a45"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.1124",
    "kind": "arxiv",
    "version": 1
  }
}