Pith Number

pith:TLEHQHVT

pith:2011:TLEHQHVTYYSQY6DAE5B2DC3LRJ

not attested not anchored not stored refs pending

Cohomological Classification of Ann-categories

Nguyen Tien Quang

arxiv:1105.5187 v2 · 2011-05-26 · 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{TLEHQHVTYYSQY6DAE5B2DC3LRJ}

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	2026-05-18T03:30:28.298602Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9ac8781eb3c6250c78602743a18b6b8a4fe37c361f770a6b36b1e7911082ecb0

Aliases

arxiv: 1105.5187 · arxiv_version: 1105.5187v2 · doi: 10.48550/arxiv.1105.5187 · pith_short_12: TLEHQHVTYYSQ · pith_short_16: TLEHQHVTYYSQY6DA · pith_short_8: TLEHQHVT

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/TLEHQHVTYYSQY6DAE5B2DC3LRJ \
  | 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: 9ac8781eb3c6250c78602743a18b6b8a4fe37c361f770a6b36b1e7911082ecb0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2369f6a1161c0221f4f065b8603cd00df2c6b1c231d1be612ce3e66bbc1f49c4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CT",
    "submitted_at": "2011-05-26T01:43:45Z",
    "title_canon_sha256": "160dc3cf46b793ae49ff712c6691e1a507f0dff52ce7596041a2549e60060ad6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.5187",
    "kind": "arxiv",
    "version": 2
  }
}