Pith Number

pith:V4FSFPYM

pith:2009:V4FSFPYMYJRHK6B4VSNULOGS3X

not attested not anchored not stored refs pending

Google Earth Physics

Anderson Ribeiro de Souza, Carlos Eduardo Aguiar

arxiv:0907.3333 v1 · 2009-07-20 · physics.pop-ph · physics.ed-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{V4FSFPYMYJRHK6B4VSNULOGS3X}

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	2026-05-18T03:20:57.453660Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

af0b22bf0cc26275783cac9b45b8d2ddd8b1e1befad85b4b7463c4036186501b

Aliases

arxiv: 0907.3333 · arxiv_version: 0907.3333v1 · doi: 10.48550/arxiv.0907.3333 · pith_short_12: V4FSFPYMYJRH · pith_short_16: V4FSFPYMYJRHK6B4 · pith_short_8: V4FSFPYM

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/V4FSFPYMYJRHK6B4VSNULOGS3X \
  | 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: af0b22bf0cc26275783cac9b45b8d2ddd8b1e1befad85b4b7463c4036186501b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6e1670a15a7678d19cc23866c5a01a006724877ff62073a01c29c36729e714f8",
    "cross_cats_sorted": [
      "physics.ed-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.pop-ph",
    "submitted_at": "2009-07-20T02:33:04Z",
    "title_canon_sha256": "658365377e7db646caff46165f5e7f26c684fe37ffaf10ff9924c49f9f96680f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.3333",
    "kind": "arxiv",
    "version": 1
  }
}