Pith Number

pith:ZPSIQSFJ

pith:2017:ZPSIQSFJDKUQOQUDTACC63HV2V

not attested not anchored not stored refs pending

On 'categories' of quantum field theories

Yuji Tachikawa

arxiv:1712.09456 v1 · 2017-12-26 · math-ph · hep-th · 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{ZPSIQSFJDKUQOQUDTACC63HV2V}

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	2026-05-18T00:27:08.351049Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cbe48848a91aa907428398042f6cf5d56d9ba6487958f302cf296545758f660f

Aliases

arxiv: 1712.09456 · arxiv_version: 1712.09456v1 · doi: 10.48550/arxiv.1712.09456 · pith_short_12: ZPSIQSFJDKUQ · pith_short_16: ZPSIQSFJDKUQOQUD · pith_short_8: ZPSIQSFJ

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/ZPSIQSFJDKUQOQUDTACC63HV2V \
  | 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: cbe48848a91aa907428398042f6cf5d56d9ba6487958f302cf296545758f660f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b3244bd559c3e3b3e885cf621b1b65c03ad521c7a094924ebb509833fbdddaee",
    "cross_cats_sorted": [
      "hep-th",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2017-12-26T23:41:22Z",
    "title_canon_sha256": "fcc374db325e0798fa537971fcdbaf537cbc0e9857980b825cfb44ee70cfedf2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.09456",
    "kind": "arxiv",
    "version": 1
  }
}