Pith Number

pith:4TDXXBWC

pith:2013:4TDXXBWCCMXD4NDTRALQKDD3CL

not attested not anchored not stored refs pending

Neat atom structures

Tarek Sayed Ahmed

arxiv:1304.0785 v1 · 2013-04-02 · 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{4TDXXBWCCMXD4NDTRALQKDD3CL}

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	2026-05-18T03:29:06.121277Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e4c77b86c2132e3e34738817050c7b12e8799cc91f29953475fb49ab337916fb

Aliases

arxiv: 1304.0785 · arxiv_version: 1304.0785v1 · doi: 10.48550/arxiv.1304.0785 · pith_short_12: 4TDXXBWCCMXD · pith_short_16: 4TDXXBWCCMXD4NDT · pith_short_8: 4TDXXBWC

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/4TDXXBWCCMXD4NDTRALQKDD3CL \
  | 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: e4c77b86c2132e3e34738817050c7b12e8799cc91f29953475fb49ab337916fb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a947f759d345472f6e4f0d920c64a4a4d3e56766ff7f91dc83be7af9a77a9454",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2013-04-02T20:13:35Z",
    "title_canon_sha256": "de7595192ea389a9515a1ea8e4bbd677d7838c356e0f9a44888fae1b7ec18337"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.0785",
    "kind": "arxiv",
    "version": 1
  }
}