Pith Number

pith:SQX6YVAC

pith:2019:SQX6YVACH4VU2PX3EDG5O3XPCE

not attested not anchored not stored refs pending

Chern-Ricci curvatures, holomorphic sectional curvature and Hermitian metrics

Haojie Chen, Lingling Chen, Xiaolan Nie

arxiv:1905.02950 v1 · 2019-05-08 · math.DG · math.CV

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

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	2026-05-17T23:46:44.930773Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

942fec54023f2b4d3efb20cdd76eef1122802df3bde8cb348d5a1dbee612ec78

Aliases

arxiv: 1905.02950 · arxiv_version: 1905.02950v1 · doi: 10.48550/arxiv.1905.02950 · pith_short_12: SQX6YVACH4VU · pith_short_16: SQX6YVACH4VU2PX3 · pith_short_8: SQX6YVAC

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/SQX6YVACH4VU2PX3EDG5O3XPCE \
  | 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: 942fec54023f2b4d3efb20cdd76eef1122802df3bde8cb348d5a1dbee612ec78

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "570b203b036a82117f779bea1607563cf6e9fa52d027fc3f6c1763604be1eaf7",
    "cross_cats_sorted": [
      "math.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2019-05-08T08:05:30Z",
    "title_canon_sha256": "b23d108f780669744d8ade10ef507f60cc4e2a7bb9fdb60db9ec8738b56aedbf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.02950",
    "kind": "arxiv",
    "version": 1
  }
}