Pith Number

pith:2GTEL4NP

pith:2019:2GTEL4NPGYXW2VDK27BTL4PSLJ

not attested not anchored not stored refs pending

$L$-Topology via Generalised Geometric Logic

P. Jana

arxiv:1909.02106 v1 · 2019-08-25 · 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{2GTEL4NPGYXW2VDK27BTL4PSLJ}

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	2026-07-05T00:02:30.387387Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d1a645f1af362f6d546ad7c335f1f25a7d13465fc65b673727647c46e46885d8

Aliases

arxiv: 1909.02106 · arxiv_version: 1909.02106v1 · doi: 10.48550/arxiv.1909.02106 · pith_short_12: 2GTEL4NPGYXW · pith_short_16: 2GTEL4NPGYXW2VDK · pith_short_8: 2GTEL4NP

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/2GTEL4NPGYXW2VDK27BTL4PSLJ \
  | 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: d1a645f1af362f6d546ad7c335f1f25a7d13465fc65b673727647c46e46885d8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b48561159db3ced6e6b5fd925967e173480b4eee7af65178ab0f66f29a0bfc5d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2019-08-25T03:58:00Z",
    "title_canon_sha256": "ff13fcd914a25fb812d06729e4d91203b79049a21ad75024d9424e9567b844ae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.02106",
    "kind": "arxiv",
    "version": 1
  }
}