Pith Number

pith:K4FB44K4

pith:2015:K4FB44K4AHIYOBLI2JAMYVV4EE

not attested not anchored not stored refs pending

The January 2015 outburst of a red nova in M31

Alexander Kurtenkov, Allen W. Shafter, Andon Kostov, Azamat F. Valeev, Elena A. Barsukova, Evgeni P. Ovcharov, Kamil Hornoch, Klaas Wiersema, Kriszti\'an S\'arneczky, Kriszti\'an Vida, L\'aszl\'o Moln\'ar, Martin Henze, Maximilian Stritzinger, Peter Pessev, Petko Nedialkov, Rosa Victoria Mu\~noz Dimitrova, Sergei Fabrika, Stefan Geier, Stefano Valenti, Toma Tomov, Vasil N. Popov, Vitaly P. Goranskij

arxiv:1505.07808 v1 · 2015-05-28 · 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{K4FB44K4AHIYOBLI2JAMYVV4EE}

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.

Cited by

1 paper in Pith

Red novae, their progenitors, and remnants

Receipt and verification

First computed	2026-05-18T01:49:31.077464Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

570a1e715c01d1870568d240cc56bc213ee4a01e8d82600e9789deaee9072681

Aliases

arxiv: 1505.07808 · arxiv_version: 1505.07808v1 · doi: 10.48550/arxiv.1505.07808 · pith_short_12: K4FB44K4AHIY · pith_short_16: K4FB44K4AHIYOBLI · pith_short_8: K4FB44K4

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/K4FB44K4AHIYOBLI2JAMYVV4EE \
  | 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: 570a1e715c01d1870568d240cc56bc213ee4a01e8d82600e9789deaee9072681

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c4bfea8bff7cb5bbfc62f1998042a6cf056c375ed6cc02bce786281be9f117cb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-05-28T19:18:38Z",
    "title_canon_sha256": "c643ff4db340f02b7016791f9d14a682f300a4a2306f77847aca251222f999b5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.07808",
    "kind": "arxiv",
    "version": 1
  }
}