Pith Number

pith:QFFZGI5K

pith:2016:QFFZGI5KELUYLOT3GCFKA6OROJ

not attested not anchored not stored refs pending

Quaternionic Bott-Chern cohomology and existence of HKT metrics

Mehdi Lejmi, Patrick Weber

arxiv:1605.07117 v2 · 2016-05-23 · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QFFZGI5KELUYLOT3GCFKA6OROJ}

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	2026-05-18T00:55:13.716890Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

814b9323aa22e985ba7b308aa079d17259951bd0f2ac8ec29f45ea567b1fcb74

Aliases

arxiv: 1605.07117 · arxiv_version: 1605.07117v2 · doi: 10.48550/arxiv.1605.07117 · pith_short_12: QFFZGI5KELUY · pith_short_16: QFFZGI5KELUYLOT3 · pith_short_8: QFFZGI5K

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/QFFZGI5KELUYLOT3GCFKA6OROJ \
  | 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: 814b9323aa22e985ba7b308aa079d17259951bd0f2ac8ec29f45ea567b1fcb74

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f7b8fc5cdcea91f7e64eff2bce249f995cc081cb16ff955d9aa819114f1ca83b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2016-05-23T18:01:40Z",
    "title_canon_sha256": "f201c4f883f564974932ef2ae873fe5fc51b1e734e52d8cfd2616079a0d91908"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.07117",
    "kind": "arxiv",
    "version": 2
  }
}