Pith Number

pith:FLF3B2UN

pith:1997:FLF3B2UNK6CPXD5MGFWVDUQZ7T

not attested not anchored not stored refs pending

Can the Universe Create Itself?

III, J. Richard Gott, Li-Xin Li

arxiv:astro-ph/9712344 v1 · 1997-12-30 · astro-ph · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FLF3B2UNK6CPXD5MGFWVDUQZ7T}

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	2026-05-18T03:47:42.638451Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2acbb0ea8d5784fb8fac316d51d219fcdf29b57217fa055e84a89d85f011c08a

Aliases

arxiv: astro-ph/9712344 · arxiv_version: astro-ph/9712344v1 · doi: 10.48550/arxiv.astro-ph/9712344 · pith_short_12: FLF3B2UNK6CP · pith_short_16: FLF3B2UNK6CPXD5M · pith_short_8: FLF3B2UN

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/FLF3B2UNK6CPXD5MGFWVDUQZ7T \
  | 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: 2acbb0ea8d5784fb8fac316d51d219fcdf29b57217fa055e84a89d85f011c08a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f391480de2ee83c11742552ce6b52402933d9d8ad34433907433aea3fd5838ea",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-12-30T17:53:32Z",
    "title_canon_sha256": "7eed337cb39d72ccc99b9b8ca1b306f16cef55713b12072c9b8e148211bfcb0a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9712344",
    "kind": "arxiv",
    "version": 1
  }
}