Pith Number

pith:YNCPPVCS

pith:2019:YNCPPVCSZSA2KRTHVC7LDI5DYJ

not attested not anchored not stored refs pending

Accrete, Accrete, Accrete... Bang! (and repeat): The Remarkable Recurrent Novae

Matthew J. Darnley

arxiv:1912.13209 v2 · 2019-12-31 · astro-ph.SR · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YNCPPVCSZSA2KRTHVC7LDI5DYJ}

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	2026-07-05T00:47:40.122553Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c344f7d452cc81a54667a8beb1a3a3c24387a102914301b79c171fd79ee35c10

Aliases

arxiv: 1912.13209 · arxiv_version: 1912.13209v2 · doi: 10.48550/arxiv.1912.13209 · pith_short_12: YNCPPVCSZSA2 · pith_short_16: YNCPPVCSZSA2KRTH · pith_short_8: YNCPPVCS

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/YNCPPVCSZSA2KRTHVC7LDI5DYJ \
  | 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: c344f7d452cc81a54667a8beb1a3a3c24387a102914301b79c171fd79ee35c10

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ede91d04f0ff3b6b6b78979a163c7fbddbe2540b938ac8f29df3ac4bfb3bd39b",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-12-31T07:47:01Z",
    "title_canon_sha256": "8689bb25bcc37ef619a4b462e68a5a586adc80dadebde81a14529c24ff53c42c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.13209",
    "kind": "arxiv",
    "version": 2
  }
}