Pith Number

pith:2LFJ67JG

pith:2011:2LFJ67JGGPBDQSBWWTITEDDJVZ

not attested not anchored not stored refs pending

X-ray Study of Rekindled Accretion in the Classical Nova V2491 Cygni

D. Takei, H. Takahashi, J. J. Drake, J. P. Osborne, J.-U. Ness, K. Kinugasa, M. Tsujimoto, S. Kitamoto

arxiv:1102.2436 v1 · 2011-02-11 · astro-ph.HE · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2LFJ67JGGPBDQSBWWTITEDDJVZ}

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	2026-05-18T02:03:11.896618Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d2ca9f7d2633c2384836b4d1320c69ae593d8cf4d9b758563bb360f729110ec2

Aliases

arxiv: 1102.2436 · arxiv_version: 1102.2436v1 · doi: 10.48550/arxiv.1102.2436 · pith_short_12: 2LFJ67JGGPBD · pith_short_16: 2LFJ67JGGPBDQSBW · pith_short_8: 2LFJ67JG

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/2LFJ67JGGPBDQSBWWTITEDDJVZ \
  | 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: d2ca9f7d2633c2384836b4d1320c69ae593d8cf4d9b758563bb360f729110ec2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8fc9eb2214bf158c3c2884425eac2e234f0af9aacf8c043961decc565f766015",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2011-02-11T21:00:01Z",
    "title_canon_sha256": "4bf131dfd0614251e38c9aa84e52e6671f9c36d63102fb79f949d6b268e167a7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.2436",
    "kind": "arxiv",
    "version": 1
  }
}