Pith Number

pith:Q5ZYICYP

pith:2015:Q5ZYICYP72RKUXH6NWVBA323D7

not attested not anchored not stored refs pending

A simple sufficient condition for triviality of obstruction in the orbifold construction for subfactors

Toshihiko Masuda

arxiv:1504.02554 v1 · 2015-04-10 · math.OA · math.CT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q5ZYICYP72RKUXH6NWVBA323D7}

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	2026-05-18T02:19:07.385605Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8773840b0ffea2aa5cfe6daa106f5b1ff5701c38834af986fe7c7daa580e1947

Aliases

arxiv: 1504.02554 · arxiv_version: 1504.02554v1 · doi: 10.48550/arxiv.1504.02554 · pith_short_12: Q5ZYICYP72RK · pith_short_16: Q5ZYICYP72RKUXH6 · pith_short_8: Q5ZYICYP

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/Q5ZYICYP72RKUXH6NWVBA323D7 \
  | 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: 8773840b0ffea2aa5cfe6daa106f5b1ff5701c38834af986fe7c7daa580e1947

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "be9c4adf152b7d279c9c976b6900c1656f089f86f482a4624cd4d4ef25935b21",
    "cross_cats_sorted": [
      "math.CT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2015-04-10T05:37:46Z",
    "title_canon_sha256": "a3e54441d8af34d4147c6a445e888738cca4eafbdf8bf42de39804ce1b80eb70"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.02554",
    "kind": "arxiv",
    "version": 1
  }
}