Pith Number

pith:VW3I5QDM

pith:2011:VW3I5QDMXCJ7I7XEONIEGR2AT7

not attested not anchored not stored refs pending

It's Alive! The Supernova Impostor 1961V

Schuyler D. Van Dyk (Spitzer Science Center/Caltech), Thomas Matheson (NOAO)

arxiv:1112.0299 v2 · 2011-12-01 · astro-ph.SR · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VW3I5QDMXCJ7I7XEONIEGR2AT7}

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	2026-05-18T01:59:20.230863Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

adb68ec06cb893f47ee473504347409fc1c441f4445e596008c07953a6893a46

Aliases

arxiv: 1112.0299 · arxiv_version: 1112.0299v2 · doi: 10.48550/arxiv.1112.0299 · pith_short_12: VW3I5QDMXCJ7 · pith_short_16: VW3I5QDMXCJ7I7XE · pith_short_8: VW3I5QDM

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/VW3I5QDMXCJ7I7XEONIEGR2AT7 \
  | 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: adb68ec06cb893f47ee473504347409fc1c441f4445e596008c07953a6893a46

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "34743578adef1ef581218377ce1796ea7965668ea6f7d8d55146ade22069462d",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-12-01T20:38:31Z",
    "title_canon_sha256": "221f17fe44228aade22163a5bc75e40860fb2cdda0e251f48118db23d576f31a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.0299",
    "kind": "arxiv",
    "version": 2
  }
}