Pith Number

pith:DY23HR6Q

pith:2018:DY23HR6QVRHVB3YVM7VLJ3TVTH

not attested not anchored not stored refs pending

Hilbert's tenth problem, G\"odel's incompleteness, Halting problem, a unifying perspective

Tarek Sayed Ahmed

arxiv:1812.00990 v1 · 2018-12-02 · 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{DY23HR6QVRHVB3YVM7VLJ3TVTH}

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	2026-05-17T23:59:13.522443Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1e35b3c7d0ac4f50ef1567eab4ee7599f423f9d919cbb622c69dd015079738a7

Aliases

arxiv: 1812.00990 · arxiv_version: 1812.00990v1 · doi: 10.48550/arxiv.1812.00990 · pith_short_12: DY23HR6QVRHV · pith_short_16: DY23HR6QVRHVB3YV · pith_short_8: DY23HR6Q

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/DY23HR6QVRHVB3YVM7VLJ3TVTH \
  | 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: 1e35b3c7d0ac4f50ef1567eab4ee7599f423f9d919cbb622c69dd015079738a7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "15e3baa975d2b0c25c5b00f435333ccce3f41485927852f58ae34c0e41f9dfe2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2018-12-02T09:11:08Z",
    "title_canon_sha256": "d0a3caa7b9512799f4c0a5569144f71a8dc78eed812d33814ccc15c9a42e0361"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.00990",
    "kind": "arxiv",
    "version": 1
  }
}