Pith Number

pith:OQ6F6H7D

pith:2014:OQ6F6H7DXEPFRHPM2EERTB7SLN

not attested not anchored not stored refs pending

On Bott-Chern cohomology and formality

Adriano Tomassini, Daniele Angella

arxiv:1411.6037 v2 · 2014-11-21 · math.DG · math.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OQ6F6H7DXEPFRHPM2EERTB7SLN}

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	2026-05-18T01:35:35.204647Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

743c5f1fe3b91e589decd1091987f25b67d7723ca2fc1c5a06f2600f957c8696

Aliases

arxiv: 1411.6037 · arxiv_version: 1411.6037v2 · doi: 10.48550/arxiv.1411.6037 · pith_short_12: OQ6F6H7DXEPF · pith_short_16: OQ6F6H7DXEPFRHPM · pith_short_8: OQ6F6H7D

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/OQ6F6H7DXEPFRHPM2EERTB7SLN \
  | 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: 743c5f1fe3b91e589decd1091987f25b67d7723ca2fc1c5a06f2600f957c8696

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f4a59d9e13eb7010e70fec9532722b9243da6c3a6703ffc54ded0fa87d0e49a4",
    "cross_cats_sorted": [
      "math.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2014-11-21T21:54:47Z",
    "title_canon_sha256": "a5dff15d0ac9e93069fb07e281aa6eca9d5313994f72386e905fc2d3b6c1b475"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1411.6037",
    "kind": "arxiv",
    "version": 2
  }
}