Pith Number

pith:ECG3RKH2

pith:2014:ECG3RKH2U7SSGSLY4MIZ4QIF5E

not attested not anchored not stored refs pending

Solvability of Dirac type equations

Ke Zhu, Qingchun Ji

arxiv:1407.6936 v2 · 2014-07-25 · math.DG · math.SG · math.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ECG3RKH2U7SSGSLY4MIZ4QIF5E}

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	2026-05-18T01:22:43.482835Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

208db8a8faa7e5234978e3119e4105e91f8c45639a94689a3b1909796bf7d372

Aliases

arxiv: 1407.6936 · arxiv_version: 1407.6936v2 · doi: 10.48550/arxiv.1407.6936 · pith_short_12: ECG3RKH2U7SS · pith_short_16: ECG3RKH2U7SSGSLY · pith_short_8: ECG3RKH2

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/ECG3RKH2U7SSGSLY4MIZ4QIF5E \
  | 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: 208db8a8faa7e5234978e3119e4105e91f8c45639a94689a3b1909796bf7d372

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e4cd0955355048e3e16d64a29ee4de4a14122aa7c071c811b1322834abf27105",
    "cross_cats_sorted": [
      "math.SG",
      "math.SP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2014-07-25T15:26:46Z",
    "title_canon_sha256": "50b8cc1074052af896c7cdb943b4ddebbf965b805ce845ec7a9eaddff7ce8de0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.6936",
    "kind": "arxiv",
    "version": 2
  }
}