Pith Number

pith:ZD6JECXJ

pith:2014:ZD6JECXJJDWRQRQMO3CJT3ALKA

not attested not anchored not stored refs pending

A Direct Computation of the Cohomology of the Braces Operad

Thomas H. Willwacher, Vasily A. Dolgushev

arxiv:1411.1685 v3 · 2014-11-06 · 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{ZD6JECXJJDWRQRQMO3CJT3ALKA}

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	2026-05-18T01:11:51.846606Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c8fc920ae948ed18460c76c499ec0b5013aea17c4bc62aea7abba97815e10a17

Aliases

arxiv: 1411.1685 · arxiv_version: 1411.1685v3 · doi: 10.48550/arxiv.1411.1685 · pith_short_12: ZD6JECXJJDWR · pith_short_16: ZD6JECXJJDWRQRQM · pith_short_8: ZD6JECXJ

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/ZD6JECXJJDWRQRQMO3CJT3ALKA \
  | 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: c8fc920ae948ed18460c76c499ec0b5013aea17c4bc62aea7abba97815e10a17

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "552c4b4bf10803d82b6d036fe9e5cfd6ecb7733c2a9dcf8d069980857a26294d",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.KT",
    "submitted_at": "2014-11-06T18:22:54Z",
    "title_canon_sha256": "f7f556123757298a640af6e41b767c453976367afc201c0c133273549c661c9e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1411.1685",
    "kind": "arxiv",
    "version": 3
  }
}