Pith Number

pith:TAGTYR2T

pith:2011:TAGTYR2TT3TGEILL4QNDGPFJ6R

not attested not anchored not stored refs pending

Connected sums of simplicial complexes and equivariant cohomology

Tomoo Matsumura, W. Frank Moore

arxiv:1112.0157 v3 · 2011-12-01 · math.SG · math.AC · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TAGTYR2TT3TGEILL4QNDGPFJ6R}

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	2026-05-18T03:53:54.578683Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

980d3c47539ee662216be41a333ca9f441142243538f451181da7a775c5ecce4

Aliases

arxiv: 1112.0157 · arxiv_version: 1112.0157v3 · doi: 10.48550/arxiv.1112.0157 · pith_short_12: TAGTYR2TT3TG · pith_short_16: TAGTYR2TT3TGEILL · pith_short_8: TAGTYR2T

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/TAGTYR2TT3TGEILL4QNDGPFJ6R \
  | 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: 980d3c47539ee662216be41a333ca9f441142243538f451181da7a775c5ecce4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c2adae2a65f5326883c36e9132171e17e15ff99bf3b96f05b49f96ec35aa2a35",
    "cross_cats_sorted": [
      "math.AC",
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2011-12-01T12:28:44Z",
    "title_canon_sha256": "2e0fb9455ccb37414aad63656e7d928939b9acad615adb5caf0326e59b456738"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.0157",
    "kind": "arxiv",
    "version": 3
  }
}