Pith Number

pith:BU4VVHCL

pith:2013:BU4VVHCLPJT5XWYFN37SPLBFTP

not attested not anchored not stored refs pending

Isospinning hopfions

Derek Harland, Juha J\"aykk\"a, Martin Speight, Yakov Shnir

arxiv:1301.2923 v2 · 2013-01-14 · hep-th · math-ph · 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{BU4VVHCLPJT5XWYFN37SPLBFTP}

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	2026-05-18T03:12:11.880882Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0d395a9c4b7a67dbdb056eff27ac259bd2e914400710a918bbf555733f1b06ce

Aliases

arxiv: 1301.2923 · arxiv_version: 1301.2923v2 · doi: 10.48550/arxiv.1301.2923 · pith_short_12: BU4VVHCLPJT5 · pith_short_16: BU4VVHCLPJT5XWYF · pith_short_8: BU4VVHCL

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/BU4VVHCLPJT5XWYFN37SPLBFTP \
  | 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: 0d395a9c4b7a67dbdb056eff27ac259bd2e914400710a918bbf555733f1b06ce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3c2a6a78c06f80f85fe04c0e2c417b55612e0f03fc910713d9338cc6250733a1",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2013-01-14T11:17:31Z",
    "title_canon_sha256": "228b7ec752b208332ecf454d1246166da844e3240cf8f57e63f997a87b048760"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.2923",
    "kind": "arxiv",
    "version": 2
  }
}