Pith Number

pith:P2N7MLTN

pith:2012:P2N7MLTN4AHQZGFOFDASQ5COCF

not attested not anchored not stored refs pending

On The Expansion and Fate Of The Universe

Aldo Bonasera

arxiv:1208.5385 v1 · 2012-08-06 · physics.gen-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{P2N7MLTN4AHQZGFOFDASQ5COCF}

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	2026-05-18T01:54:57.808136Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e9bf62e6de00f0c98ae28c128744e115dc2876f8c897010d54c4e8489312193

Aliases

arxiv: 1208.5385 · arxiv_version: 1208.5385v1 · doi: 10.48550/arxiv.1208.5385 · pith_short_12: P2N7MLTN4AHQ · pith_short_16: P2N7MLTN4AHQZGFO · pith_short_8: P2N7MLTN

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/P2N7MLTN4AHQZGFOFDASQ5COCF \
  | 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: 7e9bf62e6de00f0c98ae28c128744e115dc2876f8c897010d54c4e8489312193

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3fa710f7ccce5ae7792f92b9a5d0c176ca7335782439e81b898154fa4ea150d6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.gen-ph",
    "submitted_at": "2012-08-06T14:42:46Z",
    "title_canon_sha256": "ca55c9ee410c891039e8af52de041129828b838def940884fcfb54f82d4e9fae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.5385",
    "kind": "arxiv",
    "version": 1
  }
}