Pith Number

pith:A7VFLQ2Q

pith:2011:A7VFLQ2QMKX4VXL673IQ7DBTUU

not attested not anchored not stored refs pending

Comparative Analysis of Peculiar Type Ia 1991bg-like Supernovae Spectra

Brandon Doull, E. Baron

arxiv:1105.3328 v1 · 2011-05-17 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{A7VFLQ2QMKX4VXL673IQ7DBTUU}

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	2026-05-18T02:01:57.308234Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

07ea55c35062afcadd7efed10f8c33a5272978e5105855e374231380e45c6796

Aliases

arxiv: 1105.3328 · arxiv_version: 1105.3328v1 · doi: 10.48550/arxiv.1105.3328 · pith_short_12: A7VFLQ2QMKX4 · pith_short_16: A7VFLQ2QMKX4VXL6 · pith_short_8: A7VFLQ2Q

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/A7VFLQ2QMKX4VXL673IQ7DBTUU \
  | 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: 07ea55c35062afcadd7efed10f8c33a5272978e5105855e374231380e45c6796

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b1a3b644b41b3fb46816aea5dfe5079b52e93e21e33a165823ea702c7d8837f6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-05-17T10:04:12Z",
    "title_canon_sha256": "508a8b689355c9e620abae5c75e693a6bc14b3b421de5fa96b9b7c4905422b39"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.3328",
    "kind": "arxiv",
    "version": 1
  }
}