Pith Number

pith:E3QHFOXO

pith:2000:E3QHFOXOP3FP4HIQHT4WFEDIUP

not attested not anchored not stored refs pending

A 700 year-old Pulsar in the Supernova Remnant Kes 75

E. V. Gotthelf (Columbia), G. Vasisht (JPL/Caltech), K. Torii (NASDA), M. Boylan-Kolchin(Columbia)

arxiv:astro-ph/0008097 v1 · 2000-08-06 · 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{E3QHFOXOP3FP4HIQHT4WFEDIUP}

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	2026-05-18T04:13:57.185264Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

26e072baee7ecafe1d103cf9629068a3d55b28507b40e43261a8f157e83c9b65

Aliases

arxiv: astro-ph/0008097 · arxiv_version: astro-ph/0008097v1 · doi: 10.48550/arxiv.astro-ph/0008097 · pith_short_12: E3QHFOXOP3FP · pith_short_16: E3QHFOXOP3FP4HIQ · pith_short_8: E3QHFOXO

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/E3QHFOXOP3FP4HIQHT4WFEDIUP \
  | 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: 26e072baee7ecafe1d103cf9629068a3d55b28507b40e43261a8f157e83c9b65

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "35f10f8256a706e195d4d28628efc3ef91866f6cb81f6aa8c16f2f49ae5bf4b7",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-08-06T08:54:31Z",
    "title_canon_sha256": "1ed2282b0688e4910e5b64d9bb3482459826c92fa4c6183c13b6243ddaa564a3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0008097",
    "kind": "arxiv",
    "version": 1
  }
}