Pith Number

pith:7QOTXAHO

pith:2010:7QOTXAHOGDOFNTZYOZH33X7F5C

not attested not anchored not stored refs pending

Deep GALEX Observations of the Coma Cluster: Source Catalog and Galaxy Counts

Ann Hornschemeier, Bahram Mobasher, Bruno Milliard, Derek Hammer, Leigh Jenkins, Neal Miller, Russell Smith, Stephane Arnouts

arxiv:1004.2498 v1 · 2010-04-14 · astro-ph.GA · 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{7QOTXAHOGDOFNTZYOZH33X7F5C}

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	2026-05-18T02:08:05.486220Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc1d3b80ee30dc56cf38764fbddfe5e8a9b21c0d769eeb1ea8e11c5d124a3ad6

Aliases

arxiv: 1004.2498 · arxiv_version: 1004.2498v1 · doi: 10.48550/arxiv.1004.2498 · pith_short_12: 7QOTXAHOGDOF · pith_short_16: 7QOTXAHOGDOFNTZY · pith_short_8: 7QOTXAHO

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/7QOTXAHOGDOFNTZYOZH33X7F5C \
  | 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: fc1d3b80ee30dc56cf38764fbddfe5e8a9b21c0d769eeb1ea8e11c5d124a3ad6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db1bbee06d990b0adf1c3f97ae9ed292b4815fd104c437667c13f7e6a53eb3c9",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2010-04-14T20:10:07Z",
    "title_canon_sha256": "5eb383e408cd4b110237cb6c9f829acff2fc99bfb2291a63972dc707b857e03f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.2498",
    "kind": "arxiv",
    "version": 1
  }
}