Pith Number

pith:QPOFZ6MW

pith:2018:QPOFZ6MWWPZDIMLDXHJ4V46KP4

not attested not anchored not stored refs pending

Higher categorical groups and the classification of topological defects and textures

Abhishodh Prakash, J.P. Ang

arxiv:1810.12965 v1 · 2018-10-30 · math-ph · hep-th · math.AT · 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{QPOFZ6MWWPZDIMLDXHJ4V46KP4}

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	2026-05-18T00:01:52.593463Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83dc5cf996b3f2343163b9d3caf3ca7f248da17af72c2c0220afbee29b050a47

Aliases

arxiv: 1810.12965 · arxiv_version: 1810.12965v1 · doi: 10.48550/arxiv.1810.12965 · pith_short_12: QPOFZ6MWWPZD · pith_short_16: QPOFZ6MWWPZDIMLD · pith_short_8: QPOFZ6MW

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/QPOFZ6MWWPZDIMLDXHJ4V46KP4 \
  | 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: 83dc5cf996b3f2343163b9d3caf3ca7f248da17af72c2c0220afbee29b050a47

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8529ab35430d4f6fc12e0020daebf8932ce4c781f5bb6c36f77405adc9e9c531",
    "cross_cats_sorted": [
      "hep-th",
      "math.AT",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2018-10-30T18:57:32Z",
    "title_canon_sha256": "159d49a737a7c1a4ce10505f599d3a7180ebf9d02225675266eddddf0f165fd0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.12965",
    "kind": "arxiv",
    "version": 1
  }
}