Pith Number

pith:35U4DL4V

pith:2012:35U4DL4VX76O2L5CSTJENOC6HG

not attested not anchored not stored refs pending

Creating universes with thick walls

Andreas Albrecht, Andrew Ulvestad

arxiv:1202.5936 v1 · 2012-02-27 · 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{35U4DL4VX76O2L5CSTJENOC6HG}

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	2026-05-18T03:55:01.491637Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

df69c1af95bffced2fa294d246b85e398007f9084aad2ff1aa71c0de92185a4b

Aliases

arxiv: 1202.5936 · arxiv_version: 1202.5936v1 · doi: 10.48550/arxiv.1202.5936 · pith_short_12: 35U4DL4VX76O · pith_short_16: 35U4DL4VX76O2L5C · pith_short_8: 35U4DL4V

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/35U4DL4VX76O2L5CSTJENOC6HG \
  | 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: df69c1af95bffced2fa294d246b85e398007f9084aad2ff1aa71c0de92185a4b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4911dc086e44b7ecb315d49b8a69dcfd2d3fc3d4e99c9313d4b695c8d84e31c0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2012-02-27T14:00:58Z",
    "title_canon_sha256": "d54079f235305c5f6f692ddc6d36d8b52f9a4260514b398618d26b0327fea541"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.5936",
    "kind": "arxiv",
    "version": 1
  }
}