Pith Number

pith:CETKJR2O

pith:2014:CETKJR2OBKFCZ4VJUEMWBOHUSD

not attested not anchored not stored refs pending

Geometry of surfaces associated to grassmannian sigma models

Laurent Delisle, V\'eronique Hussin, Wojtek J. Zakrzewski

arxiv:1412.1368 v1 · 2014-12-03 · math-ph · math.DG · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CETKJR2OBKFCZ4VJUEMWBOHUSD}

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	2026-05-18T01:41:23.709973Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1126a4c74e0a8a2cf2a9a11960b8f490e30e06ddb2b00f36c51ec24949ca7e54

Aliases

arxiv: 1412.1368 · arxiv_version: 1412.1368v1 · doi: 10.48550/arxiv.1412.1368 · pith_short_12: CETKJR2OBKFC · pith_short_16: CETKJR2OBKFCZ4VJ · pith_short_8: CETKJR2O

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/CETKJR2OBKFCZ4VJUEMWBOHUSD \
  | 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: 1126a4c74e0a8a2cf2a9a11960b8f490e30e06ddb2b00f36c51ec24949ca7e54

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9fe6a2aef60a18411b17dcbc1cebbd7b4d651e4c1b7dcbd5c1be5d7e4cb68941",
    "cross_cats_sorted": [
      "math.DG",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2014-12-03T15:35:49Z",
    "title_canon_sha256": "16bfaf38556e9fbdb64b98a686acecea245e7fd37a4255ad76490ff1382b0f12"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.1368",
    "kind": "arxiv",
    "version": 1
  }
}