Pith Number

pith:PWVAUS5S

pith:2000:PWVAUS5S4NZTEDPBVOC76G3GYQ

not attested not anchored not stored refs pending

X-ray observation of the super-luminal quasar 4C+73.18 (1928+738) by ASCA

M. Gliozzi, M. Matsuoka, W. Brinkmann, W. Yuan, Y. Zhao

arxiv:astro-ph/0002518 v2 · 2000-02-29 · 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{PWVAUS5S4NZTEDPBVOC76G3GYQ}

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	2026-05-18T01:07:46.831385Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7daa0a4bb2e373320de1ab85ff1b66c4171a9df932a07a2e23a13131277c1ccb

Aliases

arxiv: astro-ph/0002518 · arxiv_version: astro-ph/0002518v2 · doi: 10.48550/arxiv.astro-ph/0002518 · pith_short_12: PWVAUS5S4NZT · pith_short_16: PWVAUS5S4NZTEDPB · pith_short_8: PWVAUS5S

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/PWVAUS5S4NZTEDPBVOC76G3GYQ \
  | 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: 7daa0a4bb2e373320de1ab85ff1b66c4171a9df932a07a2e23a13131277c1ccb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "72a6488c882d8a7589b7d13779fd41449fad9ee07310607b7749e2d1b732af97",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-02-29T10:45:08Z",
    "title_canon_sha256": "ef24d4105cf86468c206824075318e9b82fee2332e17e418483fb84ae9c40ffe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0002518",
    "kind": "arxiv",
    "version": 2
  }
}