Pith Number

pith:LFYCAWBR

pith:2013:LFYCAWBRSLEHQLKSQ46MP6X4GJ

not attested not anchored not stored refs pending

Anybody but Hubble!

Virginia Trimble

arxiv:1307.2289 v1 · 2013-07-08 · physics.hist-ph · 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{LFYCAWBRSLEHQLKSQ46MP6X4GJ}

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	2026-05-18T03:18:52.954449Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

597020583192c8782d52873cc7fafc32607a85ff859caec1996929efcb2cebd7

Aliases

arxiv: 1307.2289 · arxiv_version: 1307.2289v1 · doi: 10.48550/arxiv.1307.2289 · pith_short_12: LFYCAWBRSLEH · pith_short_16: LFYCAWBRSLEHQLKS · pith_short_8: LFYCAWBR

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/LFYCAWBRSLEHQLKSQ46MP6X4GJ \
  | 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: 597020583192c8782d52873cc7fafc32607a85ff859caec1996929efcb2cebd7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c55899406e52ddfb65060135897fc4ce9340e99c3bff88778797fb36d5fce425",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.hist-ph",
    "submitted_at": "2013-07-08T22:24:00Z",
    "title_canon_sha256": "612dcd2e494e20c1349418fa78cb83683ffe413ce11bd6e0d58dcd3a8c36db41"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.2289",
    "kind": "arxiv",
    "version": 1
  }
}