Pith Number

pith:EOE35EL3

pith:2026:EOE35EL3LSKUTIFKKBJ72R2RE4

not attested not anchored not stored refs pending

Topological Classification of Non-Normalizable Vector Fields

Alessandro Pignedoli, Alexander Neuhaus, Frank-J. Meyer zu Heringdorf, Karin Everschor-Sitte, Maria Azhar, Philipp Gessler

arxiv:2607.25848 v1 · 2026-07-28 · cond-mat.other · cond-mat.soft · math-ph · math.MP · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EOE35EL3LSKUTIFKKBJ72R2RE4}

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	2026-07-29T01:26:06.429848Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2389be917b5c9549a0aa5053fd47512733b5274faaa7dd8648cb37b8bf30f947

Aliases

arxiv: 2607.25848 · arxiv_version: 2607.25848v1 · doi: 10.48550/arxiv.2607.25848 · pith_short_12: EOE35EL3LSKU · pith_short_16: EOE35EL3LSKUTIFK · pith_short_8: EOE35EL3

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/EOE35EL3LSKUTIFKKBJ72R2RE4 \
  | 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: 2389be917b5c9549a0aa5053fd47512733b5274faaa7dd8648cb37b8bf30f947

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a6c1e8e3b6a3c54899ac5a96ddc1053a32b182b8080923e0e1eeb7ee2bce4a57",
    "cross_cats_sorted": [
      "cond-mat.soft",
      "math-ph",
      "math.MP",
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.other",
    "submitted_at": "2026-07-28T15:22:37Z",
    "title_canon_sha256": "c4670b06950ea165de92287cccf7cb372e8607b7dffb22610ebe7d363b32fed9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.25848",
    "kind": "arxiv",
    "version": 1
  }
}