Pith Number

pith:BUEI4CEF

pith:2001:BUEI4CEFLPUDPRWFH4JUOAE5W4

not attested not anchored not stored refs pending

Cepheid Calibration of the Peak Brightness of SNe Ia. XI. SN 1998aq in NGC 3982

A. E. Dolphin, Allan Sandage, A. Saha, F. D. Macchetto, G. A. Tammann, J. Christensen, N. Panagia

arxiv:astro-ph/0107391 v1 · 2001-07-19 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BUEI4CEFLPUDPRWFH4JUOAE5W4}

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	2026-07-04T15:39:47.347186Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0d088e08855be837c6c53f1347009db722a5504a9a3f0b40517ed1f9c973dc18

Aliases

arxiv: astro-ph/0107391 · arxiv_version: astro-ph/0107391v1 · doi: 10.48550/arxiv.astro-ph/0107391 · pith_short_12: BUEI4CEFLPUD · pith_short_16: BUEI4CEFLPUDPRWF · pith_short_8: BUEI4CEF

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/BUEI4CEFLPUDPRWFH4JUOAE5W4 \
  | 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: 0d088e08855be837c6c53f1347009db722a5504a9a3f0b40517ed1f9c973dc18

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "97bb2c174b73aad29d505cde5dded624605fd3e5a3c872c8c2e8933abf2c754a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-07-19T22:50:24Z",
    "title_canon_sha256": "4db454e49e07566f854d093968516339b1bad917e12bd38eff8502e7ac100f1e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0107391",
    "kind": "arxiv",
    "version": 1
  }
}