Pith Number

pith:PHHOJQKA

pith:2010:PHHOJQKA7RIEBEZFDKNX5O6YZE

not attested not anchored not stored refs pending

The emergence of geometry: a two-dimensional toy model

Daniel Puigdom\`enech, Dom\`enec Espriu, Jorge Alfaro

arxiv:1004.3664 v1 · 2010-04-21 · hep-th · 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{PHHOJQKA7RIEBEZFDKNX5O6YZE}

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	2026-05-18T03:45:40.337946Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

79cee4c140fc504093251a9b7ebbd8c906679dd893272a7fcc8d46565c33be3d

Aliases

arxiv: 1004.3664 · arxiv_version: 1004.3664v1 · doi: 10.48550/arxiv.1004.3664 · pith_short_12: PHHOJQKA7RIE · pith_short_16: PHHOJQKA7RIEBEZF · pith_short_8: PHHOJQKA

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/PHHOJQKA7RIEBEZFDKNX5O6YZE \
  | 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: 79cee4c140fc504093251a9b7ebbd8c906679dd893272a7fcc8d46565c33be3d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "11312ad28ccb3ab2612a2f4163822a8ea81237ca496ba6791f7dc98f1b97e066",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2010-04-21T10:00:07Z",
    "title_canon_sha256": "b4b3efb277b6dba5d8e60e2c76c4f92f370790f078fe75b3476942cd23d9adc9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.3664",
    "kind": "arxiv",
    "version": 1
  }
}