Pith Number

pith:XF5XN32M

pith:2022:XF5XN32MPGOI4HURSPQJBQ2QMQ

not attested not anchored not stored refs pending

Optical Observations of the Nearby Type Ia Supernova 2021hpr

Bingqing Zhang, Danzengluobu, Hong Wu, Lin Du, Pinsong Zhao, Tianmeng Zhang, Yinan Zhu, Yu Zhang, Zhitong Li

arxiv:2207.08395 v1 · 2022-07-18 · astro-ph.HE · astro-ph.GA · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XF5XN32MPGOI4HURSPQJBQ2QMQ}

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	2026-07-05T04:41:04.196955Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b97b76ef4c799c8e1e9193e090c350641a46fbb8610101f2f3609a963befc791

Aliases

arxiv: 2207.08395 · arxiv_version: 2207.08395v1 · doi: 10.48550/arxiv.2207.08395 · pith_short_12: XF5XN32MPGOI · pith_short_16: XF5XN32MPGOI4HUR · pith_short_8: XF5XN32M

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/XF5XN32MPGOI4HURSPQJBQ2QMQ \
  | 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: b97b76ef4c799c8e1e9193e090c350641a46fbb8610101f2f3609a963befc791

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6eb05dd651579f522e7a876cc0800baee0d84243b3e436fcf2bd63a30599d235",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2022-07-18T06:10:42Z",
    "title_canon_sha256": "11e9d15f84e8bc52a316af366a9d0144ddc4a5ffb23cfb988a084e74d1bb6277"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2207.08395",
    "kind": "arxiv",
    "version": 1
  }
}