Pith Number

pith:BHC4B47O

pith:2023:BHC4B47OTWGIJBHS7452NKJY4D

not attested not anchored not stored refs pending

Bright Type II Supernova 2023ixf in M101: A Quick Analysis of the Early-Stage Spectra and Near-Infrared Light Curves

Masayuki Yamanaka, Mitsugu Fujii, Takahiro Nagayama

arxiv:2306.00263 v2 · 2023-06-01 · astro-ph.SR · astro-ph.GA · 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{BHC4B47OTWGIJBHS7452NKJY4D}

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.

Cited by

1 paper in Pith

SN 2023ixf: The Closest Supernova of the Decade

Receipt and verification

First computed	2026-07-05T06:33:21.112161Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

09c5c0f3ee9d8c8484f2ff3ba6a938e0cc4e58b6ffc9328612d0e39427d2b9c6

Aliases

arxiv: 2306.00263 · arxiv_version: 2306.00263v2 · doi: 10.48550/arxiv.2306.00263 · pith_short_12: BHC4B47OTWGI · pith_short_16: BHC4B47OTWGIJBHS · pith_short_8: BHC4B47O

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/BHC4B47OTWGIJBHS7452NKJY4D \
  | 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: 09c5c0f3ee9d8c8484f2ff3ba6a938e0cc4e58b6ffc9328612d0e39427d2b9c6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7ec96bfa471418a9e6912e836c3e42fa45b7fe970d4eb2e13ebfa2e4d010c817",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2023-06-01T00:48:23Z",
    "title_canon_sha256": "ea037a7e53c32198f59dcb37f218908864c533ef3d0716bd10e0e9c44b3d1f03"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2306.00263",
    "kind": "arxiv",
    "version": 2
  }
}