Pith Number

pith:N2VN4UB7

pith:2013:N2VN4UB7FR4DSXEYILDI7AROHG

not attested not anchored not stored refs pending

The hunt for old novae

A. Ederoclite, C. Tappert, L. Schmidtobreick, N. Vogt

arxiv:1303.1712 v1 · 2013-03-07 · 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{N2VN4UB7FR4DSXEYILDI7AROHG}

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	2026-05-18T03:31:33.370856Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6eaade503f2c78395c9842c68f822e398ccfd540c161d94481914ee07c655855

Aliases

arxiv: 1303.1712 · arxiv_version: 1303.1712v1 · doi: 10.48550/arxiv.1303.1712 · pith_short_12: N2VN4UB7FR4D · pith_short_16: N2VN4UB7FR4DSXEY · pith_short_8: N2VN4UB7

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/N2VN4UB7FR4DSXEYILDI7AROHG \
  | 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: 6eaade503f2c78395c9842c68f822e398ccfd540c161d94481914ee07c655855

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0d9918bf6c775a65d010b1b682bca5f1dd6b7b0edfc725e499821b5f9bbce32e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-03-07T15:11:12Z",
    "title_canon_sha256": "4b083fc506d5e115880ce7ed2e336c27f92409d0cff386772f8e019432f15e21"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.1712",
    "kind": "arxiv",
    "version": 1
  }
}