Pith Number

pith:7DDFERFY

pith:2022:7DDFERFYNOWYPSWGCOUVVOS24Q

not attested not anchored not stored refs pending

Observation of polarization singularities and topological textures in sound waves

E. Brasselet, F. Nori, J. L. Ealo, K. Volke-Sepulveda, K. Y. Bliokh, M. A. Alonso, R. D. Muelas-Hurtado

arxiv:2210.03976 v1 · 2022-10-08 · physics.class-ph · physics.flu-dyn

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7DDFERFYNOWYPSWGCOUVVOS24Q}

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	2026-07-05T05:18:40.167503Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8c65244b86bad87cac613a95aba5ae421be80f53f06753cd566e213aeadd727

Aliases

arxiv: 2210.03976 · arxiv_version: 2210.03976v1 · doi: 10.48550/arxiv.2210.03976 · pith_short_12: 7DDFERFYNOWY · pith_short_16: 7DDFERFYNOWYPSWG · pith_short_8: 7DDFERFY

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/7DDFERFYNOWYPSWGCOUVVOS24Q \
  | 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: f8c65244b86bad87cac613a95aba5ae421be80f53f06753cd566e213aeadd727

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0afb45844309e35235b9b1271eb9e0019f89d0dc08431cd0806109001e9523bb",
    "cross_cats_sorted": [
      "physics.flu-dyn"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.class-ph",
    "submitted_at": "2022-10-08T09:16:45Z",
    "title_canon_sha256": "c3a53e445eae04d7b85074815bd3bbb5d7b8dccc79c7c6990f5f16f90a204d8d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2210.03976",
    "kind": "arxiv",
    "version": 1
  }
}