Pith Number

pith:IVSKC7OE

pith:2012:IVSKC7OEAKMFL2H4Z5IMKOKDO4

not attested not anchored not stored refs pending

Noninvadability implies noncoexistence for a class of cancellative systems

Jan M. Swart

arxiv:1211.7178 v2 · 2012-11-30 · math.PR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IVSKC7OEAKMFL2H4Z5IMKOKDO4}

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	2026-05-18T03:30:25.331334Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4564a17dc4029855e8fccf50c5394377068e5df1d3f7a269e74c2e879e1771a7

Aliases

arxiv: 1211.7178 · arxiv_version: 1211.7178v2 · doi: 10.48550/arxiv.1211.7178 · pith_short_12: IVSKC7OEAKMF · pith_short_16: IVSKC7OEAKMFL2H4 · pith_short_8: IVSKC7OE

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/IVSKC7OEAKMFL2H4Z5IMKOKDO4 \
  | 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: 4564a17dc4029855e8fccf50c5394377068e5df1d3f7a269e74c2e879e1771a7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "966d12217a8b188e30088d0cba51e237918dcc8fdb13ec3a199d4b797721e19a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.PR",
    "submitted_at": "2012-11-30T08:16:28Z",
    "title_canon_sha256": "e95eecf1ea1f91183549302278827d8920472987a798bda913177bf50b8b4bc4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.7178",
    "kind": "arxiv",
    "version": 2
  }
}