Pith Number

pith:B77AAEKA

pith:2014:B77AAEKAHD3N7IP5MJEZ4COI6A

not attested not anchored not stored refs pending

Algebraisable versions of predicate topological logic

Tarek Sayed Ahmed

arxiv:1401.1156 v1 · 2014-01-06 · 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{B77AAEKAHD3N7IP5MJEZ4COI6A}

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	2026-05-18T03:03:10.778667Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ffe00114038f6dfa1fd62499e09c8f038cf86824761a064a8627a5c1d0be4a5

Aliases

arxiv: 1401.1156 · arxiv_version: 1401.1156v1 · doi: 10.48550/arxiv.1401.1156 · pith_short_12: B77AAEKAHD3N · pith_short_16: B77AAEKAHD3N7IP5 · pith_short_8: B77AAEKA

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/B77AAEKAHD3N7IP5MJEZ4COI6A \
  | 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: 0ffe00114038f6dfa1fd62499e09c8f038cf86824761a064a8627a5c1d0be4a5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "478454f009b5c391805cb761aaae8eebcb991da1da26c8d50e2776893e182e60",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2014-01-06T17:57:53Z",
    "title_canon_sha256": "e1cdba032420dd82b804298efdbe2e1c3b144e1ac61d2f4524811e0a05be33a1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.1156",
    "kind": "arxiv",
    "version": 1
  }
}