Pith Number

pith:FQIGQCYW

pith:2014:FQIGQCYWFVYXCFLHSXPFTKJCNP

not attested not anchored not stored refs pending

Algebraic quantum kk-theory

Eugenia Ellis

arxiv:1408.1639 v2 · 2014-08-07 · math.KT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FQIGQCYWFVYXCFLHSXPFTKJCNP}

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	2026-05-17T23:48:17.741280Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c10680b162d7171156795de59a9226bcaed72cf3c928bde583e9d2c6170753d

Aliases

arxiv: 1408.1639 · arxiv_version: 1408.1639v2 · doi: 10.48550/arxiv.1408.1639 · pith_short_12: FQIGQCYWFVYX · pith_short_16: FQIGQCYWFVYXCFLH · pith_short_8: FQIGQCYW

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/FQIGQCYWFVYXCFLHSXPFTKJCNP \
  | 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: 2c10680b162d7171156795de59a9226bcaed72cf3c928bde583e9d2c6170753d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "22779955b1cff98bdf4f2e00cffd31928c23528949014b16426c0f03270b7cd7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.KT",
    "submitted_at": "2014-08-07T16:12:10Z",
    "title_canon_sha256": "d877a36ae6d82670fb4c109aa18ff3a6c1e23cbc3ff7dc55e56361b1c91f10c7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.1639",
    "kind": "arxiv",
    "version": 2
  }
}