Pith Number

pith:O2S6VGR3

pith:2007:O2S6VGR3G7DAPOZF5Z44JKDFXP

not attested not anchored not stored refs pending

Comparative Direct Analysis of Type Ia Supernova Spectra. IV. Postmaximum

Christopher Bruner, David Branch, David J. Jeffery, E. Baron, Jerod Parrent, Joshua Harrison, M. A. Troxel, Melissa Keithley, V. Stanishev

arxiv:0712.2436 v1 · 2007-12-14 · 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{O2S6VGR3G7DAPOZF5Z44JKDFXP}

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	2026-07-04T17:07:15.200145Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

76a5ea9a3b37c607bb25ee79c4a865bbc11862a8caee9a375c1a632d25907421

Aliases

arxiv: 0712.2436 · arxiv_version: 0712.2436v1 · doi: 10.48550/arxiv.0712.2436 · pith_short_12: O2S6VGR3G7DA · pith_short_16: O2S6VGR3G7DAPOZF · pith_short_8: O2S6VGR3

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/O2S6VGR3G7DAPOZF5Z44JKDFXP \
  | 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: 76a5ea9a3b37c607bb25ee79c4a865bbc11862a8caee9a375c1a632d25907421

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ac371dcfc74344e19424de5a2e34a47f8c2f0b71f3a657a74a7de828c985b9e1",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-12-14T19:43:42Z",
    "title_canon_sha256": "fdb439843429f94408fed4aa88cd76257eed11f550227ea8ce9ea5e1ea094bf4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0712.2436",
    "kind": "arxiv",
    "version": 1
  }
}