Pith Number

pith:7B3AKMR5

pith:2014:7B3AKMR5MSU7SECV2GHFM5OIJU

not attested not anchored not stored refs pending

Computability and Complexity over the Product Topology of Real Numbers

Walid Gomaa

arxiv:1405.1590 v1 · 2014-05-07 · cs.LO · cs.CC · math.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7B3AKMR5MSU7SECV2GHFM5OIJU}

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	2026-05-18T02:52:14.837408Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f87605323d64a9f91055d18e5675c84d247b4a3fbefbe5b64a1df874e7b7aa92

Aliases

arxiv: 1405.1590 · arxiv_version: 1405.1590v1 · doi: 10.48550/arxiv.1405.1590 · pith_short_12: 7B3AKMR5MSU7 · pith_short_16: 7B3AKMR5MSU7SECV · pith_short_8: 7B3AKMR5

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/7B3AKMR5MSU7SECV2GHFM5OIJU \
  | 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: f87605323d64a9f91055d18e5675c84d247b4a3fbefbe5b64a1df874e7b7aa92

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b6cfee639d7edd490222c6ebac61e9776bc0dc9ed349b982a220d503d579768e",
    "cross_cats_sorted": [
      "cs.CC",
      "math.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2014-05-07T12:40:41Z",
    "title_canon_sha256": "a407c50732eae9d632df51d369eb8cd7a334a716eae4426f98e78ebc9623cfc7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.1590",
    "kind": "arxiv",
    "version": 1
  }
}