Pith Number

pith:665LCIUG

pith:2023:665LCIUG3OQEPBRMBRRFBLCQHA

not attested not anchored not stored refs pending

The dusty red supergiant progenitor and the local environment of the Type II SN 2023ixf in M101

Ji-Feng Liu, Justyn R. Maund, Ning-Chen Sun, Rui-Ning Zhao, Yu Zhang, Ze-xi Niu

arxiv:2308.04677 v2 · 2023-08-09 · astro-ph.SR · 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{665LCIUG3OQEPBRMBRRFBLCQHA}

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	2026-07-05T06:46:07.381142Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f7bab12286dba047862c0c6250ac503821ad3ca286aab2333853f69e377aec1e

Aliases

arxiv: 2308.04677 · arxiv_version: 2308.04677v2 · doi: 10.48550/arxiv.2308.04677 · pith_short_12: 665LCIUG3OQE · pith_short_16: 665LCIUG3OQEPBRM · pith_short_8: 665LCIUG

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/665LCIUG3OQEPBRMBRRFBLCQHA \
  | 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: f7bab12286dba047862c0c6250ac503821ad3ca286aab2333853f69e377aec1e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b0bcc2909b7ad5659a7f57feffd4f02a6428c0e00832fd102404c1bca6045b6d",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2023-08-09T03:13:34Z",
    "title_canon_sha256": "7456d4ece7840413d8f89c4ccfc5b4a4b9e1b82d4fbc17be86dfae7dc9f67242"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2308.04677",
    "kind": "arxiv",
    "version": 2
  }
}