Pith Number

pith:POAY6SDS

pith:2011:POAY6SDSGQOE2KPTDO74WSHYLA

not attested not anchored not stored refs pending

Topological Representation of Geometric Theories

Henrik Forssell

arxiv:1109.0699 v2 · 2011-09-04 · math.LO · math.CT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{POAY6SDSGQOE2KPTDO74WSHYLA}

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	2026-05-18T03:19:44.245805Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7b818f4872341c4d29f31bbfcb48f8582f26071b73e91d711c2e1c5c31ecb193

Aliases

arxiv: 1109.0699 · arxiv_version: 1109.0699v2 · doi: 10.48550/arxiv.1109.0699 · pith_short_12: POAY6SDSGQOE · pith_short_16: POAY6SDSGQOE2KPT · pith_short_8: POAY6SDS

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/POAY6SDSGQOE2KPTDO74WSHYLA \
  | 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: 7b818f4872341c4d29f31bbfcb48f8582f26071b73e91d711c2e1c5c31ecb193

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "59aa22304bb44f0a29f7713e32931b2f2bf50e8e87008940ced01e8d6c958240",
    "cross_cats_sorted": [
      "math.CT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2011-09-04T11:35:10Z",
    "title_canon_sha256": "1957a7f5db1808aee6c4c49b8f3792e3412d9af812dd071c2b4c60a3d3761980"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.0699",
    "kind": "arxiv",
    "version": 2
  }
}