Pith Number

pith:BFSM53HD

pith:2003:BFSM53HDTEXNH5VTDH5Y7C22WN

not attested not anchored not stored refs pending

SN 2002cx: The Most Peculiar Known Type Ia Supernova

(2) Caltech, 3), (3) CfA, (4) STSCI, 5), (5) UCD, (6) UCSC, (7) SIRTF), Alexei V. Filippenko (1), Chris Fassnacht (4, Edo Berger (2), Gordon Squires (7) ((1) UCB, Graeme H. Smith (6), Michael L. Calkins (3), Perry Berlind (3), Peter Challis (3), Robert A. Simcoe (2), Robert P. Kirshner (3), Ryan Chornock (1), Saurabh Jha (1, Thomas Matheson (3), Wallace L. W. Sargent (2), Weidong Li (1)

arxiv:astro-ph/0301428 v1 · 2003-01-22 · 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{BFSM53HDTEXNH5VTDH5Y7C22WN}

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	2026-05-18T01:07:33.909344Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0964ceece3992ed3f6b319fb8f8b5ab355c5b5fcc30dd94681cac23361895be3

Aliases

arxiv: astro-ph/0301428 · arxiv_version: astro-ph/0301428v1 · doi: 10.48550/arxiv.astro-ph/0301428 · pith_short_12: BFSM53HDTEXN · pith_short_16: BFSM53HDTEXNH5VT · pith_short_8: BFSM53HD

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/BFSM53HDTEXNH5VTDH5Y7C22WN \
  | 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: 0964ceece3992ed3f6b319fb8f8b5ab355c5b5fcc30dd94681cac23361895be3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4af1f6d018647938524a4fb409aa966efd83b1c1ca12d75c3317912fff539926",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-01-22T02:18:43Z",
    "title_canon_sha256": "5eb3bca9ca3167a672f07b17f78f288a2b006e38ea5bbd9bd0604d9c0127bfbb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0301428",
    "kind": "arxiv",
    "version": 1
  }
}