Pith Number

pith:HFOY4CB3

pith:2014:HFOY4CB3QY2PURYQOMCSK626TK

not attested not anchored not stored refs pending

Twins for life? A comparative analysis of the Type Ia supernovae 2011fe and 2011by

Alexei V. Filippenko, Isaac Shivvers, Jeffrey M. Silverman, Kelsey I. Clubb, Melissa L. Graham, Mohan Ganeshalingam, Patrick L. Kelly, Ryan J. Foley, Weikang Zheng

arxiv:1408.2651 v1 · 2014-08-12 · 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{HFOY4CB3QY2PURYQOMCSK626TK}

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	2026-05-18T01:42:21.492083Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

395d8e083b8634fa47107305257b5e9a987f85350a3b607aff357700d343a981

Aliases

arxiv: 1408.2651 · arxiv_version: 1408.2651v1 · doi: 10.48550/arxiv.1408.2651 · pith_short_12: HFOY4CB3QY2P · pith_short_16: HFOY4CB3QY2PURYQ · pith_short_8: HFOY4CB3

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/HFOY4CB3QY2PURYQOMCSK626TK \
  | 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: 395d8e083b8634fa47107305257b5e9a987f85350a3b607aff357700d343a981

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "27d932a7ba9c34f5a0f878dd7d00f6959b4a7758bed5f92e3564b3adfdee8f29",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2014-08-12T08:19:23Z",
    "title_canon_sha256": "d317c4203ee0465c69a713b336fa5c60e20978530930dda1af11b03875ed2720"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.2651",
    "kind": "arxiv",
    "version": 1
  }
}