Pith Number

pith:KG2E5UD3

pith:2001:KG2E5UD3F5VRGOH3DG3AX6GFTA

not attested not anchored not stored refs pending

Chandra and ASCA X-ray Observations of the Radio Supernova SN1979C IN NGC 4321

A. Ray (TIFR, Bombay, Cambridge, E. M. Schlegel (Harvard-Smithsonian CfA, India), MA), MD), R. Petre (NASA-GSFC Greenbelt

arxiv:astro-ph/0104447 v1 · 2001-04-27 · 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{KG2E5UD3F5VRGOH3DG3AX6GFTA}

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	2026-07-04T16:23:18.203117Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

51b44ed07b2f6b1338fb19b60bf8c59814a113e9ffe145e49fd2e4156b84c96d

Aliases

arxiv: astro-ph/0104447 · arxiv_version: astro-ph/0104447v1 · doi: 10.48550/arxiv.astro-ph/0104447 · pith_short_12: KG2E5UD3F5VR · pith_short_16: KG2E5UD3F5VRGOH3 · pith_short_8: KG2E5UD3

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/KG2E5UD3F5VRGOH3DG3AX6GFTA \
  | 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: 51b44ed07b2f6b1338fb19b60bf8c59814a113e9ffe145e49fd2e4156b84c96d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "52806fc23c8b635aca58a956f82090c25a4c88c8362a33adaaca6a141e7c532f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-04-27T14:30:25Z",
    "title_canon_sha256": "b74042dcc00c1fedc5819e425229b16e65cd20b3b79f3793df0fbea1377518eb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0104447",
    "kind": "arxiv",
    "version": 1
  }
}