Pith Number

pith:E5MGCDA5

pith:1997:E5MGCDA5VNGCF3MEAOTA7MC7N7

not attested not anchored not stored refs pending

Faint galaxies and the X-ray background

A.J. Blair, B.J. Boyle, G.C. Stewart, I. Georgantopoulos, K.F. Gunn, O. Almaini, R.E. Griffiths, T. Shanks

arxiv:astro-ph/9711150 v2 · 1997-11-14 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E5MGCDA5VNGCF3MEAOTA7MC7N7}

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	2026-05-18T01:40:16.503532Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2758610c1dab4c22ed8403a60fb05f6fd8be54ba97725202f3b243230da3d529

Aliases

arxiv: astro-ph/9711150 · arxiv_version: astro-ph/9711150v2 · doi: 10.48550/arxiv.astro-ph/9711150 · pith_short_12: E5MGCDA5VNGC · pith_short_16: E5MGCDA5VNGCF3ME · pith_short_8: E5MGCDA5

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/E5MGCDA5VNGCF3MEAOTA7MC7N7 \
  | 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: 2758610c1dab4c22ed8403a60fb05f6fd8be54ba97725202f3b243230da3d529

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dfc2f1d2a444b2a472ebd8218ba8c32250830731ccf738dda491f823e473ec2a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-11-14T01:30:52Z",
    "title_canon_sha256": "7b14d0858f47c7d927a4da0d479ccd4a4fdaba66eeb9f1ee1e33f51339f0a494"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9711150",
    "kind": "arxiv",
    "version": 2
  }
}