Pith Number

pith:U6UL4FC6

pith:2011:U6UL4FC6QHLIADT6TQICVZHCCP

not attested not anchored not stored refs pending

Codes as fractals and noncommutative spaces

Christopher Perez, Matilde Marcolli

arxiv:1107.5782 v1 · 2011-07-28 · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U6UL4FC6QHLIADT6TQICVZHCCP}

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	2026-05-18T04:16:41.324406Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a7a8be145e81d6800e7e9c102ae4e213fa045f105117307223e2edf005ffec6c

Aliases

arxiv: 1107.5782 · arxiv_version: 1107.5782v1 · doi: 10.48550/arxiv.1107.5782 · pith_short_12: U6UL4FC6QHLI · pith_short_16: U6UL4FC6QHLIADT6 · pith_short_8: U6UL4FC6

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/U6UL4FC6QHLIADT6TQICVZHCCP \
  | 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: a7a8be145e81d6800e7e9c102ae4e213fa045f105117307223e2edf005ffec6c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cd68a205d32500278f92ae4c8472dc2d28be4e89b1abd829e2f2562fd6457105",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2011-07-28T17:59:09Z",
    "title_canon_sha256": "8e0fa99f3007d13dee0482d5db2a5042d1bb18933bc8e54dbf9f2782455f80ad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.5782",
    "kind": "arxiv",
    "version": 1
  }
}