Pith Number

pith:Y67ZREBE

pith:2014:Y67ZREBEEQIIMJXFNJ4U7GLYD7

not attested not anchored not stored refs pending

Hints of a second explosion (a quark nova) in Cassiopeia A Supernova

Astronomy, Canada), Denis Leahy, Nico Koning (Department of Physics, Rachid Ouyed, University of Calgary

arxiv:1404.5063 v3 · 2014-04-20 · 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{Y67ZREBEEQIIMJXFNJ4U7GLYD7}

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	2026-05-18T01:43:27.047114Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c7bf98902424108626e56a794f99781ff35d662d3f6af7e615213b9c99f8efc4

Aliases

arxiv: 1404.5063 · arxiv_version: 1404.5063v3 · doi: 10.48550/arxiv.1404.5063 · pith_short_12: Y67ZREBEEQII · pith_short_16: Y67ZREBEEQIIMJXF · pith_short_8: Y67ZREBE

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/Y67ZREBEEQIIMJXFNJ4U7GLYD7 \
  | 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: c7bf98902424108626e56a794f99781ff35d662d3f6af7e615213b9c99f8efc4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1491c4b8e21e1fb14677a5afc32b12620fb45d5fb943d70669b73d88d1f836be",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2014-04-20T18:39:42Z",
    "title_canon_sha256": "e9a5026f8fc73a5bb5d0c6155f3fd502037f8db8d273257e2d2ec0f56df2fe0a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.5063",
    "kind": "arxiv",
    "version": 3
  }
}