Pith Number

pith:A2G6I4A6

pith:2022:A2G6I4A65SB7HSCGBYR3M5Y25M

not attested not anchored not stored refs pending

Observations of the Very Young Type Ia Supernova 2019np with Early-excess Emission

Achille Fiore, Anthony L. Piro, Bo Wang, Chengyuan Wu, Christian Vogl, Christopher R. Burns, Eric Y. Hsiao, Hanna Sai, Jicheng Zhang, Jordi Isern, Jujia Zhang, Jun Mo, K. Itagaki, Lina Tomasella, Lingzhi Wang, Maximilian D. Stritzinger, Melissa Shahbandeh, M. M. Phillips, Nancy Elias-Rosa, Peter Brown, Priscila J. Pessi, Reguitti Andrea, Sheng Yang, Stefan Schuldt, Tianmeng Zhang, Weili Lin, Wenxiong Li, Xiangyun Zeng, Xiaofeng Wang, Xinghan Zhang, Yi Yang, Yongzhi Cai, Zhitong Li

arxiv:2205.15596 v2 · 2022-05-31 · astro-ph.HE · 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{A2G6I4A65SB7HSCGBYR3M5Y25M}

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	2026-07-05T04:30:00.408573Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

068de4701eec83f3c8460e23b6771aeb0c8bfe99939dc7ae82f4bf42e1f0ade3

Aliases

arxiv: 2205.15596 · arxiv_version: 2205.15596v2 · doi: 10.48550/arxiv.2205.15596 · pith_short_12: A2G6I4A65SB7 · pith_short_16: A2G6I4A65SB7HSCG · pith_short_8: A2G6I4A6

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/A2G6I4A65SB7HSCGBYR3M5Y25M \
  | 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: 068de4701eec83f3c8460e23b6771aeb0c8bfe99939dc7ae82f4bf42e1f0ade3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "30477091f80d436ae0e6b97a78a26d6728001083f009ae55283c0bbb2eac9157",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2022-05-31T08:15:00Z",
    "title_canon_sha256": "d80cd738c14cda5e18a55acfdf9e7e8f322698619a4a7e47b0d96b07ad2816fd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2205.15596",
    "kind": "arxiv",
    "version": 2
  }
}