Pith Number

pith:OQVNM647

pith:2019:OQVNM647HEO4N6WUXA5ETIPN4J

not attested not anchored not stored refs pending

Conjugation Spaces are Cohomologically Pure

Jerome Scherer, Nicolas Ricka, Wolfgang Pitsch

arxiv:1908.03088 v3 · 2019-08-08 · 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{OQVNM647HEO4N6WUXA5ETIPN4J}

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	2026-07-05T02:13:42.161690Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

742ad67b9f391dc6fad4b83a49a1ede27b7cd4fbced157bd93d153d19166de09

Aliases

arxiv: 1908.03088 · arxiv_version: 1908.03088v3 · doi: 10.48550/arxiv.1908.03088 · pith_short_12: OQVNM647HEO4 · pith_short_16: OQVNM647HEO4N6WU · pith_short_8: OQVNM647

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/OQVNM647HEO4N6WUXA5ETIPN4J \
  | 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: 742ad67b9f391dc6fad4b83a49a1ede27b7cd4fbced157bd93d153d19166de09

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b914a16b86b8c573b9ec1e290b32d887454aa853f8c10a2b864b4e959d017fe8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2019-08-08T14:15:13Z",
    "title_canon_sha256": "62f58dbf76db90a5aa0453167d1c6b301bbde08fe370bc0795ff3ddef6084706"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.03088",
    "kind": "arxiv",
    "version": 3
  }
}