Pith Number

pith:N5GQDTTM

pith:2017:N5GQDTTMQJIUWHWCA6IRYSHF7M

not attested not anchored not stored refs pending

Contact manifolds, Lagrangian Grassmannians and PDEs

Gianni Manno, Giovanni Moreno, Katja Sagerschnig, Olimjon Eshkobilov

arxiv:1708.02718 v2 · 2017-08-09 · 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{N5GQDTTMQJIUWHWCA6IRYSHF7M}

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	2026-05-18T00:36:21.793872Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6f4d01ce6c82514b1ec207911c48e5fb329a090d9e71ff8443908034750c1de9

Aliases

arxiv: 1708.02718 · arxiv_version: 1708.02718v2 · doi: 10.48550/arxiv.1708.02718 · pith_short_12: N5GQDTTMQJIU · pith_short_16: N5GQDTTMQJIUWHWC · pith_short_8: N5GQDTTM

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/N5GQDTTMQJIUWHWCA6IRYSHF7M \
  | 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: 6f4d01ce6c82514b1ec207911c48e5fb329a090d9e71ff8443908034750c1de9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3d5cdbcf6ece41e78a57ecc78b7d485e4b53095bc2d2947980ec9561a39f4921",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2017-08-09T04:56:57Z",
    "title_canon_sha256": "5c5fa88cbb124fb47e5ec621af84c0209a2e6095e3ae42b4c923168fec5239f8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.02718",
    "kind": "arxiv",
    "version": 2
  }
}