Pith Number

pith:P54GAGEM

pith:1998:P54GAGEMMSTI27LS7MZRNV5Z7W

not attested not anchored not stored refs pending

The Ultraviolet Luminosity Density of the Universe from Photometric Redshifts of Galaxies in the Hubble Deep Field

A. Fernandez-Soto, K. M. Lanzetta, S. M. Pascarelle

arxiv:astro-ph/9809295 v1 · 1998-09-24 · 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{P54GAGEMMSTI27LS7MZRNV5Z7W}

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	2026-07-04T16:07:02.853003Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f7860188c64a68d7d72fb3316d7b9fdb702debbddcff129938a5a82245d9f91

Aliases

arxiv: astro-ph/9809295 · arxiv_version: astro-ph/9809295v1 · doi: 10.48550/arxiv.astro-ph/9809295 · pith_short_12: P54GAGEMMSTI · pith_short_16: P54GAGEMMSTI27LS · pith_short_8: P54GAGEM

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/P54GAGEMMSTI27LS7MZRNV5Z7W \
  | 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: 7f7860188c64a68d7d72fb3316d7b9fdb702debbddcff129938a5a82245d9f91

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "837dccfb93c387129ed1198bb8fe4a4c04226b08052563f94f107ea633b5cd91",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-09-24T00:02:10Z",
    "title_canon_sha256": "256dcf66ff7d0bc4bde8f4bf8adcb4b4bce14dec5124c15053d492171ad7515b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9809295",
    "kind": "arxiv",
    "version": 1
  }
}