Pith Number

pith:IGDWMU7K

pith:2009:IGDWMU7KXZZZ4Q2W32S4DF6DAD

not attested not anchored not stored refs pending

Cosmological Model with a Local Void: New Supernova Constraints

Le Tuan Anh Ho, Shao Chin Cindy Ng

arxiv:0907.3578 v1 · 2009-07-21 · 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{IGDWMU7KXZZZ4Q2W32S4DF6DAD}

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	2026-05-18T02:12:55.188302Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

41876653eabe739e4356dea5c197c300e3fe519794117ab5b3d2f1a02e8a80ce

Aliases

arxiv: 0907.3578 · arxiv_version: 0907.3578v1 · doi: 10.48550/arxiv.0907.3578 · pith_short_12: IGDWMU7KXZZZ · pith_short_16: IGDWMU7KXZZZ4Q2W · pith_short_8: IGDWMU7K

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/IGDWMU7KXZZZ4Q2W32S4DF6DAD \
  | 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: 41876653eabe739e4356dea5c197c300e3fe519794117ab5b3d2f1a02e8a80ce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e8496c1615fd5a6c59cc150238968402d9860994df31dd2bb2ebb5603041b624",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-07-21T08:52:37Z",
    "title_canon_sha256": "a601296b826e66b33f1a08d49549ce5f575d4edffc7fc1186c812966cde51ce6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.3578",
    "kind": "arxiv",
    "version": 1
  }
}