Pith Number

pith:VFAFFM5S

pith:2005:VFAFFM5SQ6Q3QTZCVUW7D7SJW6

not attested not anchored not stored refs pending

A possible bright blue SN in the afterglow of GRB 020305

2), (2) STScI, 3), (3) NBI, (4) U. of Leicester, (5) LBNL), A. Fruchter (2), A.J. Castro-Tirado (1), A. Levan (4), D. Bersier (2), I. Burud (2) ((1) IAA-CSIC, J. Gorosabel (1, J. Hjorth (3), J. M. Castro Cer\'on (2, J.P.U. Fynbo (3), J. Rhoads (2), P. Nugent (5)

arxiv:astro-ph/0504050 v1 · 2005-04-03 · 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{VFAFFM5SQ6Q3QTZCVUW7D7SJW6}

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	2026-07-04T15:31:18.489892Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a94052b3b287a1b84f22ad2df1fe49b78817ac33baeaf4f2a9ab86ffb9d9cdea

Aliases

arxiv: astro-ph/0504050 · arxiv_version: astro-ph/0504050v1 · doi: 10.48550/arxiv.astro-ph/0504050 · pith_short_12: VFAFFM5SQ6Q3 · pith_short_16: VFAFFM5SQ6Q3QTZC · pith_short_8: VFAFFM5S

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/VFAFFM5SQ6Q3QTZCVUW7D7SJW6 \
  | 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: a94052b3b287a1b84f22ad2df1fe49b78817ac33baeaf4f2a9ab86ffb9d9cdea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "361e1fe4020cb6ec3b51ffb2d30bd1c6fb14218f5ad3f5fd5fed3b6f07947166",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-04-03T07:33:48Z",
    "title_canon_sha256": "654384d62823243da9302b9d8f09b632e374cda0a186bc500279ba8cc380e383"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0504050",
    "kind": "arxiv",
    "version": 1
  }
}