Pith Number

pith:WGN6R5JA

pith:2008:WGN6R5JA5VF7PYCNLHOYE2JW6D

not attested not anchored not stored refs pending

Are galaxies extending?

Jae-Weon Lee

arxiv:0805.2877 v4 · 2008-05-19 · astro-ph · hep-th

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WGN6R5JA5VF7PYCNLHOYE2JW6D}

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	2026-07-04T17:14:13.002544Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b19be8f520ed4bf7e04d59dd826936f0f249ad31648cc2c31e52c2b0a536776d

Aliases

arxiv: 0805.2877 · arxiv_version: 0805.2877v4 · doi: 10.48550/arxiv.0805.2877 · pith_short_12: WGN6R5JA5VF7 · pith_short_16: WGN6R5JA5VF7PYCN · pith_short_8: WGN6R5JA

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/WGN6R5JA5VF7PYCNLHOYE2JW6D \
  | 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: b19be8f520ed4bf7e04d59dd826936f0f249ad31648cc2c31e52c2b0a536776d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "05a36dcf04ad3df2110859813e2d0837ae47908b2511426e0df322fa352c5c13",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-05-19T14:47:20Z",
    "title_canon_sha256": "61c7d8d9a92b1d87dd011de1cfe94f09790eb0fc8fd2175cb598ae2ba3ecf7ab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0805.2877",
    "kind": "arxiv",
    "version": 4
  }
}