Pith Number

pith:WDIBK3E6

pith:2015:WDIBK3E6SZSIOAZXP5DETDAUBV

not attested not anchored not stored refs pending

Discrete geodesics and cellular automata

Gilles Dowek, Pablo Arrighi

arxiv:1507.06836 v2 · 2015-07-24 · cs.DM · 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{WDIBK3E6SZSIOAZXP5DETDAUBV}

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	2026-05-18T01:23:33.452437Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b0d0156c9e96648703377f46498c140d66f551201f78bbedb0d3d18253166e91

Aliases

arxiv: 1507.06836 · arxiv_version: 1507.06836v2 · doi: 10.48550/arxiv.1507.06836 · pith_short_12: WDIBK3E6SZSI · pith_short_16: WDIBK3E6SZSIOAZX · pith_short_8: WDIBK3E6

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/WDIBK3E6SZSIOAZXP5DETDAUBV \
  | 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: b0d0156c9e96648703377f46498c140d66f551201f78bbedb0d3d18253166e91

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a7543884e14682ea765e93d6cd76cd40c68228f0409af62e65e69688dd625665",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2015-07-24T13:20:01Z",
    "title_canon_sha256": "a4c8a843dc7ea1b1fca16e3ece3f4362af0cb0ce3ed18cd8714733cc54194338"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.06836",
    "kind": "arxiv",
    "version": 2
  }
}