Pith Number

pith:GNPI3QWW

pith:2015:GNPI3QWWGT7RRGP67SGWQJVKPW

not attested not anchored not stored refs pending

Constraints on Type IIn Supernova Progenitor Outbursts from the Lick Observatory Supernova Search

Alexei V. Filippenko, Christopher Bilinski, G. Grant Williams, Nathan Smith, Weidong Li, Weikang Zheng

arxiv:1503.04252 v1 · 2015-03-13 · 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{GNPI3QWWGT7RRGP67SGWQJVKPW}

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	2026-05-18T02:23:25.681625Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

335e8dc2d634ff1899fefc8d6826aa7d811694773195276b21c55cf33ab0f942

Aliases

arxiv: 1503.04252 · arxiv_version: 1503.04252v1 · doi: 10.48550/arxiv.1503.04252 · pith_short_12: GNPI3QWWGT7R · pith_short_16: GNPI3QWWGT7RRGP6 · pith_short_8: GNPI3QWW

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/GNPI3QWWGT7RRGP67SGWQJVKPW \
  | 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: 335e8dc2d634ff1899fefc8d6826aa7d811694773195276b21c55cf33ab0f942

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f46de62f698f14935e53e1fbacaca6bd19ea09d495197bb1aec792df58c7f461",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-03-13T23:46:39Z",
    "title_canon_sha256": "323ac3332625dc29794fe005f4a171504bc40ecb79e6a5a086b8c938a3132d9a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.04252",
    "kind": "arxiv",
    "version": 1
  }
}