Pith Number

pith:JYCYOBI5

pith:2003:JYCYOBI5LJKSUPDYH3IU4B2ZHP

not attested not anchored not stored refs pending

The H-alpha Light Curves and Spatial Distribution of Novae in M81

James D. Neill, Michael M. Shara

arxiv:astro-ph/0311327 v3 · 2003-11-13 · 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{JYCYOBI5LJKSUPDYH3IU4B2ZHP}

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	2026-05-18T04:35:35.832961Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4e0587051d5a552a3c783ed14e07593bc8673d92c63af9a00137299488d0c4a0

Aliases

arxiv: astro-ph/0311327 · arxiv_version: astro-ph/0311327v3 · doi: 10.48550/arxiv.astro-ph/0311327 · pith_short_12: JYCYOBI5LJKS · pith_short_16: JYCYOBI5LJKSUPDY · pith_short_8: JYCYOBI5

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/JYCYOBI5LJKSUPDYH3IU4B2ZHP \
  | 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: 4e0587051d5a552a3c783ed14e07593bc8673d92c63af9a00137299488d0c4a0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a09707b137d658aa8211ad3d934678f2f670e442b41d49f052a192e0583b6cb0",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-11-13T20:16:34Z",
    "title_canon_sha256": "faf3cde0f5e153366f3222bf5beeaa8ffbae867e53ad4da84d807187beb297fd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0311327",
    "kind": "arxiv",
    "version": 3
  }
}