Pith Number

pith:2X5W4KNG

pith:2013:2X5W4KNGBAYYKBS56MRXM3Q2ZF

not attested not anchored not stored refs pending

NIR imaging spectroscopy of the inner few arcseconds of NGC 4151 with OSIRIS at Keck

Alfred Krabbe, Andreas Quirrenbach, Christof Iserlohe, James E. Larkin, Jason Weiss, Matthew Barczys, Michael W. McElwain, Shelley A. Wright

arxiv:1306.5627 v1 · 2013-06-24 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2X5W4KNGBAYYKBS56MRXM3Q2ZF}

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	2026-05-18T01:49:08.654449Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d5fb6e29a6083185065df323766e1ac9689aa2b6b5791531976d8423ce341f3e

Aliases

arxiv: 1306.5627 · arxiv_version: 1306.5627v1 · doi: 10.48550/arxiv.1306.5627 · pith_short_12: 2X5W4KNGBAYY · pith_short_16: 2X5W4KNGBAYYKBS5 · pith_short_8: 2X5W4KNG

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/2X5W4KNGBAYYKBS56MRXM3Q2ZF \
  | 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: d5fb6e29a6083185065df323766e1ac9689aa2b6b5791531976d8423ce341f3e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e36a1a2d8d7b230db8b42efec7e3087b7ed00f82b1c5b323667da4eccd0c8516",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-06-24T13:41:37Z",
    "title_canon_sha256": "d360ee9c02d1385893370cc36bc5367a0d7ce6c638df57f4426c6bbea882a627"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.5627",
    "kind": "arxiv",
    "version": 1
  }
}