Pith Number

pith:IDYZK2CJ

pith:2014:IDYZK2CJKT7SDKEDU27JUY4CFZ

not attested not anchored not stored refs pending

Multi-epoch spectropolarimetry of SN 2009ip: direct evidence for aspherical circumstellar material

Alexei V. Filippenko, Douglas C. Leonard, G. Grant Williams, Jennifer L. Hoffman, Jon C. Mauerhan, Kelsey I. Clubb, Nathan Smith, Ori D. Fox, Patrick L. Kelly, Paul S. Smith, Peter Milne

arxiv:1403.4240 v3 · 2014-03-17 · astro-ph.SR · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IDYZK2CJKT7SDKEDU27JUY4CFZ}

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	2026-05-18T01:44:00.350009Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

40f195684954ff21a883a6be9a63822e6aec088588bda9f2737eb8762432278e

Aliases

arxiv: 1403.4240 · arxiv_version: 1403.4240v3 · doi: 10.48550/arxiv.1403.4240 · pith_short_12: IDYZK2CJKT7S · pith_short_16: IDYZK2CJKT7SDKED · pith_short_8: IDYZK2CJ

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/IDYZK2CJKT7SDKEDU27JUY4CFZ \
  | 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: 40f195684954ff21a883a6be9a63822e6aec088588bda9f2737eb8762432278e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "22ab740314d9fdd75ad227053af8c75f75ee0cc21405bb46001b74d84793f564",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2014-03-17T20:00:00Z",
    "title_canon_sha256": "641a8a3d79f0ac4f7b9ae46ac64a4a5a4c5ae31a50f8fbed96fe7fcd532cfea9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.4240",
    "kind": "arxiv",
    "version": 3
  }
}