Pith Number

pith:4PLT7FWZ

pith:2018:4PLT7FWZDDDF4RTMEOM5CCO4RB

not attested not anchored not stored refs pending

Commuting Hamiltonian flows of curves in real space forms

Albert Chern, Felix Kn\"oppel, Franz Pedit, Ulrich Pinkall

arxiv:1809.01394 v2 · 2018-09-05 · 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{4PLT7FWZDDDF4RTMEOM5CCO4RB}

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	2026-05-18T00:06:15.800057Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e3d73f96d918c65e466c2399d109dc886e35dbd1afe3f1530d6a04e97709e447

Aliases

arxiv: 1809.01394 · arxiv_version: 1809.01394v2 · doi: 10.48550/arxiv.1809.01394 · pith_short_12: 4PLT7FWZDDDF · pith_short_16: 4PLT7FWZDDDF4RTM · pith_short_8: 4PLT7FWZ

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/4PLT7FWZDDDF4RTMEOM5CCO4RB \
  | 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: e3d73f96d918c65e466c2399d109dc886e35dbd1afe3f1530d6a04e97709e447

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "84edf7e8bb2d989d8ce72fac307c2661f7396af28f434ad8b4fc60d78a0151d0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2018-09-05T09:06:39Z",
    "title_canon_sha256": "ad318f39718343328249628bf64762f411b9ab35ed920d2745b38a07c0d3d1dd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.01394",
    "kind": "arxiv",
    "version": 2
  }
}