Pith Number

pith:WHQFOHZU

pith:2009:WHQFOHZUXI6AGA73WXMYK7F6KD

not attested not anchored not stored refs pending

Searching for planar signatures in WMAP

Armando Bernui, L. Raul Abramo, Thiago S. Pereira

arxiv:0909.5395 v1 · 2009-09-29 · 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{WHQFOHZUXI6AGA73WXMYK7F6KD}

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	2026-05-18T02:34:20.797366Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b1e0571f34ba3c0303fbb5d9857cbe50c23c7396ec8c9bc2fca36e1809911c43

Aliases

arxiv: 0909.5395 · arxiv_version: 0909.5395v1 · doi: 10.48550/arxiv.0909.5395 · pith_short_12: WHQFOHZUXI6A · pith_short_16: WHQFOHZUXI6AGA73 · pith_short_8: WHQFOHZU

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/WHQFOHZUXI6AGA73WXMYK7F6KD \
  | 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: b1e0571f34ba3c0303fbb5d9857cbe50c23c7396ec8c9bc2fca36e1809911c43

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "489a3f98153cf92ad58ee9aa25e2082e975fc8104cae6a9750f6dcc526e9f608",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-09-29T17:50:24Z",
    "title_canon_sha256": "314953938189be94fa3e364c672680e8bc9924acf5e9c7b699ae2c82931786af"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.5395",
    "kind": "arxiv",
    "version": 1
  }
}