Pith Number

pith:77SHJ7Q2

pith:2000:77SHJ7Q2QEYENCVBC24P7WSABP

not attested not anchored not stored refs pending

A Systematic Search for Short-term Variability of EGRET Sources

D. A. Kniffen, D. J. Thompson, D. L. Bertsch, N. J. Griffis, P. M. Wallace, R. C. Hartman, S. D. Bloom

arxiv:astro-ph/0004252 v1 · 2000-04-18 · 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{77SHJ7Q2QEYENCVBC24P7WSABP}

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	2026-07-04T16:16:19.437781Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ffe474fe1a8130468aa116b8ffda400bc54e9df96c469dc5b9163276afe19935

Aliases

arxiv: astro-ph/0004252 · arxiv_version: astro-ph/0004252v1 · doi: 10.48550/arxiv.astro-ph/0004252 · pith_short_12: 77SHJ7Q2QEYE · pith_short_16: 77SHJ7Q2QEYENCVB · pith_short_8: 77SHJ7Q2

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/77SHJ7Q2QEYENCVBC24P7WSABP \
  | 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: ffe474fe1a8130468aa116b8ffda400bc54e9df96c469dc5b9163276afe19935

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b3527e37d97b09e2e25d7553aa256c8828e21ea407adae4d5dd39a7cb1162a04",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-04-18T12:45:07Z",
    "title_canon_sha256": "25264db026cb3689e9039077571c025430c9d2ae0bfed77e0dc1e1e333d3ade2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0004252",
    "kind": "arxiv",
    "version": 1
  }
}