Pith Number

pith:IA3ZOVLZ

pith:2011:IA3ZOVLZSSH7NSUIWNQYABMX5Q

not attested not anchored not stored refs pending

Luminosity Functions and Point Source Properties from Multiple Chandra Observations of M81

A. Zezas, D. Pooley, J. Homan, P. H. Sell, S. Heinz, W. H. G. Lewin

arxiv:1104.2906 v1 · 2011-04-14 · astro-ph.HE · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IA3ZOVLZSSH7NSUIWNQYABMX5Q}

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	2026-05-18T02:02:28.456561Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4037975579948ff6ca88b361800597ec3308dea72c5793ad9c3bbf3ab1e2db28

Aliases

arxiv: 1104.2906 · arxiv_version: 1104.2906v1 · doi: 10.48550/arxiv.1104.2906 · pith_short_12: IA3ZOVLZSSH7 · pith_short_16: IA3ZOVLZSSH7NSUI · pith_short_8: IA3ZOVLZ

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/IA3ZOVLZSSH7NSUIWNQYABMX5Q \
  | 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: 4037975579948ff6ca88b361800597ec3308dea72c5793ad9c3bbf3ab1e2db28

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "87a6b5808d8b64bf0eef2141827d4bb020390247a2d78d58be7297edf732cdca",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2011-04-14T20:01:46Z",
    "title_canon_sha256": "7aa26ac123d004f62d32951f94160f665159d20efab0667613ddf161c9f77260"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.2906",
    "kind": "arxiv",
    "version": 1
  }
}