Pith Number

pith:7DTSWSEZ

pith:1996:7DTSWSEZPX3JMSDVS2OLUAT363

not attested not anchored not stored refs pending

Implications for optical identifications of QSO absorption systems from galaxy evolution models

Germany), Klaus J. Fricke (Universitaets-Sternwarte Goettingen, Ulrich Lindner, Uta Fritze - von Alvensleben

arxiv:astro-ph/9604107 v1 · 1996-04-18 · 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{7DTSWSEZPX3JMSDVS2OLUAT363}

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	2026-05-18T01:07:41.012575Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8e72b48997df6964875969cba027bf6dc2324c03d70a8c10d501f69f026a886

Aliases

arxiv: astro-ph/9604107 · arxiv_version: astro-ph/9604107v1 · doi: 10.48550/arxiv.astro-ph/9604107 · pith_short_12: 7DTSWSEZPX3J · pith_short_16: 7DTSWSEZPX3JMSDV · pith_short_8: 7DTSWSEZ

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/7DTSWSEZPX3JMSDVS2OLUAT363 \
  | 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: f8e72b48997df6964875969cba027bf6dc2324c03d70a8c10d501f69f026a886

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c16735981a5a397f59450b84415ca890a4636325e7cea967e1461bb8eeea8f72",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1996-04-18T15:22:43Z",
    "title_canon_sha256": "4c653845fd9fb743a4238b98011261833f850494b75898b5788d983af8ca7eca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9604107",
    "kind": "arxiv",
    "version": 1
  }
}