Pith Number

pith:NP5QL6WE

pith:2011:NP5QL6WE2BP6Z35FI6MDZSV6FD

not attested not anchored not stored refs pending

Derived equivalences in n-angulated categories

Yiping Chen

arxiv:1107.2985 v2 · 2011-07-15 · math.RT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NP5QL6WE2BP6Z35FI6MDZSV6FD}

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	2026-05-18T03:58:24.693619Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6bfb05fac4d05fecefa547983ccabe28e4e12ba122f2be665b75156df2e9dc31

Aliases

arxiv: 1107.2985 · arxiv_version: 1107.2985v2 · doi: 10.48550/arxiv.1107.2985 · pith_short_12: NP5QL6WE2BP6 · pith_short_16: NP5QL6WE2BP6Z35F · pith_short_8: NP5QL6WE

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/NP5QL6WE2BP6Z35FI6MDZSV6FD \
  | 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: 6bfb05fac4d05fecefa547983ccabe28e4e12ba122f2be665b75156df2e9dc31

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a247d8c6f3cba0ff3c3c87aaf223e50246498e123319cdc39ca8b436994da0d8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RT",
    "submitted_at": "2011-07-15T03:06:29Z",
    "title_canon_sha256": "844867a61ec1831692b067c49ab07b1d2182de7a9fa935e00b9df6fa6e45794f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.2985",
    "kind": "arxiv",
    "version": 2
  }
}