Pith Number

pith:OYMLEMDG

pith:2011:OYMLEMDG7U4MKIPUOKCADH3S33

not attested not anchored not stored refs pending

Double complexes and vanishing of Novikov cohomology

Thomas Huettemann

arxiv:1108.5942 v3 · 2011-08-30 · math.KT · 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{OYMLEMDG7U4MKIPUOKCADH3S33}

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	2026-05-18T03:40:16.400783Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7618b23066fd38c521f47284019f72dee76c35bc4b9dae964874104db3b1c2b3

Aliases

arxiv: 1108.5942 · arxiv_version: 1108.5942v3 · doi: 10.48550/arxiv.1108.5942 · pith_short_12: OYMLEMDG7U4M · pith_short_16: OYMLEMDG7U4MKIPU · pith_short_8: OYMLEMDG

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/OYMLEMDG7U4MKIPUOKCADH3S33 \
  | 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: 7618b23066fd38c521f47284019f72dee76c35bc4b9dae964874104db3b1c2b3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "13ae960ad8296bc76f892e52563748dc8ffaf2b3fde27b6bd1cbbbd8e436fc36",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.KT",
    "submitted_at": "2011-08-30T12:48:18Z",
    "title_canon_sha256": "935a467b45b399409b56a3daa934a1b0369acaa43cfb3b23a8ca9144a5cd1bc8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.5942",
    "kind": "arxiv",
    "version": 3
  }
}