Pith Number

pith:GY55FWPG

pith:2000:GY55FWPGLUEDMJ3GV4KQUPOODN

not attested not anchored not stored refs pending

Chandra High-Resolution Camera Observations of the Luminous X-Ray Source in the Starburst Galaxy M82

A.H. Prestwich, A. Zezas, D.-W. Kim, E.M. Schlegel (Harvard-Smithsonian CfA), M.J. Ward (Leicester), P. Kaaret, R.E. Kilgard, S.S. Murray

arxiv:astro-ph/0009211 v3 · 2000-09-13 · 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{GY55FWPGLUEDMJ3GV4KQUPOODN}

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	2026-07-04T16:17:09.350605Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

363bd2d9e65d08362766af150a3dce1b5ca923e4df9d6af87b5020a94026a062

Aliases

arxiv: astro-ph/0009211 · arxiv_version: astro-ph/0009211v3 · doi: 10.48550/arxiv.astro-ph/0009211 · pith_short_12: GY55FWPGLUED · pith_short_16: GY55FWPGLUEDMJ3G · pith_short_8: GY55FWPG

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/GY55FWPGLUEDMJ3GV4KQUPOODN \
  | 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: 363bd2d9e65d08362766af150a3dce1b5ca923e4df9d6af87b5020a94026a062

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c2eae2e8e613559eb0b8230012159a0e3616425bfd44c034bf39bed7129946d7",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-09-13T19:54:13Z",
    "title_canon_sha256": "d25896b928b6f85aa842b386a782f2c98617e342aca6546ca0650de018da42a3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0009211",
    "kind": "arxiv",
    "version": 3
  }
}