Pith Number

pith:N3FIFREU

pith:1993:N3FIFREU4QR54SJTLDYYMDXA3P

not attested not anchored not stored refs pending

Classification and construction of unitary topological field theories in two dimensions

Bergfinnur Durhuus, Thordur Jonsson

arxiv:hep-th/9308043 v1 · 1993-08-09 · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{N3FIFREU4QR54SJTLDYYMDXA3P}

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.

Cited by

1 paper in Pith

On Atiyah-Segal axioms for Witten-type TQFTs

Receipt and verification

First computed	2026-07-04T15:56:17.236160Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6eca82c494e423de493358f1860ee0dbcff2628068fd6424f18e4501f52f945b

Aliases

arxiv: hep-th/9308043 · arxiv_version: hep-th/9308043v1 · doi: 10.48550/arxiv.hep-th/9308043 · pith_short_12: N3FIFREU4QR5 · pith_short_16: N3FIFREU4QR54SJT · pith_short_8: N3FIFREU

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/N3FIFREU4QR54SJTLDYYMDXA3P \
  | 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: 6eca82c494e423de493358f1860ee0dbcff2628068fd6424f18e4501f52f945b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c74e904d0bb0ae855a90869969750fce6c3e75137e90512d11a7a1219bf6abfc",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "1993-08-09T18:10:05Z",
    "title_canon_sha256": "6946a3f6dd20e5594ff32f0b17c6f845e375f2034f325fab95110d55cc36ba51"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/9308043",
    "kind": "arxiv",
    "version": 1
  }
}