Pith Number

pith:TIJH3WBC

pith:2023:TIJH3WBCVU7LGUXTPLEWYUSSHB

not attested not anchored not stored refs pending

Photometry and spectroscopy of the Type Icn supernova 2021ckj: The diverse properties of the ejecta and circumstellar matter of Type Icn SNe

A. Pastorello, A. Reguitti, C. Inserra, C. P. Guti\'errez, D. R. Young, E. A. Magnier, E. Kankare, H. Gao, H. Kuncarayakti, J. P. Anderson, K. Maeda, K. Uno, L. Ferrari, L. Galbany, L. Tomasella, M. Gromadzki, S. A. Sim, S. J. Smartt, S. Mattila, T. E. M\"uller-Bravo, T. Moore, T. Nagao, T.-W. Chen

arxiv:2303.07721 v1 · 2023-03-14 · 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{TIJH3WBCVU7LGUXTPLEWYUSSHB}

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	2026-07-05T06:06:15.165100Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9a127dd822ad3eb352f37ac96c5252386eccf4fd0f3aa6ba938237922410800a

Aliases

arxiv: 2303.07721 · arxiv_version: 2303.07721v1 · doi: 10.48550/arxiv.2303.07721 · pith_short_12: TIJH3WBCVU7L · pith_short_16: TIJH3WBCVU7LGUXT · pith_short_8: TIJH3WBC

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/TIJH3WBCVU7LGUXTPLEWYUSSHB \
  | 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: 9a127dd822ad3eb352f37ac96c5252386eccf4fd0f3aa6ba938237922410800a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "80cc29a83d8f3f9e8680cb3e2ea2262283842e57808bb580687bfe4d9b61624f",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2023-03-14T09:10:42Z",
    "title_canon_sha256": "ae3143e3efb8db753d2582a3e4ed141cad656c576134362d750ec8d4e59e0a97"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2303.07721",
    "kind": "arxiv",
    "version": 1
  }
}