Pith Number

pith:QLEOPC55

pith:2017:QLEOPC556XGFWEGJT3CHEW7UQ2

not attested not anchored not stored refs pending

Labeled homology of higher-dimensional automata

Thomas Kahl

arxiv:1703.07826 v2 · 2017-03-22 · math.AT · cs.FL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QLEOPC556XGFWEGJT3CHEW7UQ2}

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	2026-05-18T00:23:23.346715Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

82c8e78bbdf5cc5b10c99ec4725bf48684383d8005224176317b62e813665e95

Aliases

arxiv: 1703.07826 · arxiv_version: 1703.07826v2 · doi: 10.48550/arxiv.1703.07826 · pith_short_12: QLEOPC556XGF · pith_short_16: QLEOPC556XGFWEGJ · pith_short_8: QLEOPC55

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/QLEOPC556XGFWEGJT3CHEW7UQ2 \
  | 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: 82c8e78bbdf5cc5b10c99ec4725bf48684383d8005224176317b62e813665e95

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "15c889bcfaf9e73a007f2b5dbbd2acab853ccfad2b8d5524c8c89a7a67ac3551",
    "cross_cats_sorted": [
      "cs.FL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2017-03-22T19:18:10Z",
    "title_canon_sha256": "2aadea98002afc54f60602623d5140897911ff82c80101ba738711b848aea3d4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.07826",
    "kind": "arxiv",
    "version": 2
  }
}