Pith Number

pith:7Y4YM5QD

pith:1997:7Y4YM5QDHYCCKXBAUY3IL6JDOZ

not attested not anchored not stored refs pending

The Gaseous Extent of Galaxies and the Origin of \lya Absorption Systems. III. Hubble Space Telescope Imaging of \lya-Absorbing Galaxies at z < 1

(2) UNSW-Sydney-Australia, (3) IFCA (CSIC-UC)-Santander-Spain), H.-W. Chen(1), J. K. Webb(2), K. M. Lanzetta (1), NY-USA, X. Barcons(3) ((1) SUNY at Stony Brook

arxiv:astro-ph/9710310 v2 · 1997-10-28 · 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{7Y4YM5QDHYCCKXBAUY3IL6JDOZ}

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.

Cited by

1 paper in Pith

Revealing Cosmic Ecosystems with the Hubble Space Telescope in 2030s and Beyond

Receipt and verification

First computed	2026-07-04T16:03:19.852225Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe398676033e04255c20a63685f9237654780c6ce9df559b7002ef651269a777

Aliases

arxiv: astro-ph/9710310 · arxiv_version: astro-ph/9710310v2 · doi: 10.48550/arxiv.astro-ph/9710310 · pith_short_12: 7Y4YM5QDHYCC · pith_short_16: 7Y4YM5QDHYCCKXBA · pith_short_8: 7Y4YM5QD

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/7Y4YM5QDHYCCKXBAUY3IL6JDOZ \
  | 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: fe398676033e04255c20a63685f9237654780c6ce9df559b7002ef651269a777

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f811b5f52a1e1784f09fb8fe18aeaaebf24b36086e7237191c83e62bf9b02e27",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-10-28T01:32:13Z",
    "title_canon_sha256": "6c2e99a57e968a374b98af86b0fa5f1bb1c9528e3b75328a0d2fa878c2912554"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9710310",
    "kind": "arxiv",
    "version": 2
  }
}