Pith Number

pith:JA7NPMFB

pith:2004:JA7NPMFBZ3VCQA42TSFSRN7FIM

not attested not anchored not stored refs pending

Assessing the galaxy population out to z ~ 2 using the Hubble Deep Field South

Cathy Horellou, Duilia F. de Mello, Theresa Wiegert

arxiv:astro-ph/0407156 v1 · 2004-07-07 · 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{JA7NPMFBZ3VCQA42TSFSRN7FIM}

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	2026-07-04T16:44:16.383571Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

483ed7b0a1ceea28039a9c8b28b7e54312d87c7e71e3031acd8350061f266c40

Aliases

arxiv: astro-ph/0407156 · arxiv_version: astro-ph/0407156v1 · doi: 10.48550/arxiv.astro-ph/0407156 · pith_short_12: JA7NPMFBZ3VC · pith_short_16: JA7NPMFBZ3VCQA42 · pith_short_8: JA7NPMFB

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/JA7NPMFBZ3VCQA42TSFSRN7FIM \
  | 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: 483ed7b0a1ceea28039a9c8b28b7e54312d87c7e71e3031acd8350061f266c40

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "251850484973b0f511b23cbe41da6d35cc5884726f60f1b740ce04b69d3ba02c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-07-07T20:45:42Z",
    "title_canon_sha256": "c917cf21b5c79125998fa7a3203f5f735afc1c07faf2a64df64f7e59f60ee075"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0407156",
    "kind": "arxiv",
    "version": 1
  }
}