Pith Number

pith:ZTJWO6ZM

pith:2001:ZTJWO6ZMI37R3GYQQU54DTMKTY

not attested not anchored not stored refs pending

The 1996-1997 Fading of V651 Mon, the Binary Central Star of the Planetary Nebula NGC 2346

Daisaku Nogami (Kyoto U), Hajime Baba (NAOJ), Taichi Kato

arxiv:astro-ph/0112304 v1 · 2001-12-13 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZTJWO6ZMI37R3GYQQU54DTMKTY}

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	2026-05-18T01:40:43.621546Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ccd3677b2c46ff1d9b10853bc1cd8a9e298d38b4081aa3044561e5070812d3fd

Aliases

arxiv: astro-ph/0112304 · arxiv_version: astro-ph/0112304v1 · doi: 10.48550/arxiv.astro-ph/0112304 · pith_short_12: ZTJWO6ZMI37R · pith_short_16: ZTJWO6ZMI37R3GYQ · pith_short_8: ZTJWO6ZM

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/ZTJWO6ZMI37R3GYQQU54DTMKTY \
  | 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: ccd3677b2c46ff1d9b10853bc1cd8a9e298d38b4081aa3044561e5070812d3fd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e3e0721cabead6104e3790ac3259e16e336a38e2844897c8ea054c66ec4a3241",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-12-13T06:31:38Z",
    "title_canon_sha256": "27be8619ced6d2223d9439170e30db36d50f4f57752e36ab5c567d1386ccc81d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0112304",
    "kind": "arxiv",
    "version": 1
  }
}