Pith Number

pith:Q7UR5IFY

pith:2011:Q7UR5IFY43BVOWRGNKYMS2UV3O

not attested not anchored not stored refs pending

Perturbations of SNe Ia lightcurves, colors and spectral features by circumstellar dust

Ariel Goobar, Rahman Amanullah

arxiv:1103.1960 v2 · 2011-03-10 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q7UR5IFY43BVOWRGNKYMS2UV3O}

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	2026-05-18T02:02:55.305951Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

87e91ea0b8e6c3575a266ab0c96a95db92e1680573dfc7a96f0d3da21f2ea1b0

Aliases

arxiv: 1103.1960 · arxiv_version: 1103.1960v2 · doi: 10.48550/arxiv.1103.1960 · pith_short_12: Q7UR5IFY43BV · pith_short_16: Q7UR5IFY43BVOWRG · pith_short_8: Q7UR5IFY

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/Q7UR5IFY43BVOWRGNKYMS2UV3O \
  | 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: 87e91ea0b8e6c3575a266ab0c96a95db92e1680573dfc7a96f0d3da21f2ea1b0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6b2ca8ab41aa5eafe1d7ee488b474b8b5bbc07dd207de5c52a379c56c0cea9f1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-03-10T08:26:17Z",
    "title_canon_sha256": "2d930cc1d2dfa5d8ebca75180537b36cded035b83c412324732c67e8dff0a9c6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.1960",
    "kind": "arxiv",
    "version": 2
  }
}