Pith Number

pith:ZPBWQCKC

pith:2002:ZPBWQCKCGQVNEAOTV4WYUXDQLQ

not attested not anchored not stored refs pending

Chandra imaging spectroscopy of 1E 1740.7 - 2942

E. Gallo, R. Fender (University of Amsterdam)

arxiv:astro-ph/0208296 v1 · 2002-08-15 · 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{ZPBWQCKCGQVNEAOTV4WYUXDQLQ}

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	2026-07-04T16:30:38.901029Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cbc3680942342ad201d3af2d8a5c705c049a23b69049f55afbeeab55a0d84571

Aliases

arxiv: astro-ph/0208296 · arxiv_version: astro-ph/0208296v1 · doi: 10.48550/arxiv.astro-ph/0208296 · pith_short_12: ZPBWQCKCGQVN · pith_short_16: ZPBWQCKCGQVNEAOT · pith_short_8: ZPBWQCKC

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/ZPBWQCKCGQVNEAOTV4WYUXDQLQ \
  | 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: cbc3680942342ad201d3af2d8a5c705c049a23b69049f55afbeeab55a0d84571

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f6426a9bebee7d17a140d8c910d8e1c3c0d9cd342786f01371a06dede5f0cb69",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-08-15T13:32:44Z",
    "title_canon_sha256": "b4a298b086a5de0d5932f46dcc6ec1f0d4841c36a6701bea09e17374147d1953"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0208296",
    "kind": "arxiv",
    "version": 1
  }
}