Pith Number

pith:KCSDG4TB

pith:2014:KCSDG4TBHKYVVMGYNV3DJONFAG

not attested not anchored not stored refs pending

A remarkable recurrent nova in M31 - The optical observations

(2) European Space Astronomy Centre, (3) Department of Astronomy, (4) Astronomical Institute, Academy of Sciences, A. W. Shafter (3), Czech Republic), J.-U. Ness (2), K. Hornoch (4), Liverpool John Moores University, Madrid, M. F. Bode (1), M. Henze (2), M. J. Darnley (1), Ondrejov, San Diego State University, S. C. Williams (1), Spain, UK, US, V. Votruba (4) ((1) Astrophysics Research Institute

arxiv:1401.2905 v2 · 2014-01-13 · 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{KCSDG4TBHKYVVMGYNV3DJONFAG}

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	2026-05-18T01:45:26.104377Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

50a43372613ab15ab0d86d7634b9a5019a92905248502972ec8de8ecf21e5517

Aliases

arxiv: 1401.2905 · arxiv_version: 1401.2905v2 · doi: 10.48550/arxiv.1401.2905 · pith_short_12: KCSDG4TBHKYV · pith_short_16: KCSDG4TBHKYVVMGY · pith_short_8: KCSDG4TB

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/KCSDG4TBHKYVVMGYNV3DJONFAG \
  | 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: 50a43372613ab15ab0d86d7634b9a5019a92905248502972ec8de8ecf21e5517

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7fe9bfd485ee52391381a8e73cbe3ae68b74e77c07a1f6b7a59a50aa7a1a9375",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2014-01-13T16:31:07Z",
    "title_canon_sha256": "96e90daf056ac44fab29a2ef580f6680fa52b5eb7974ae26cd47fb649efc10bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.2905",
    "kind": "arxiv",
    "version": 2
  }
}