Pith Number

pith:BNCK6BSR

pith:2019:BNCK6BSRFBGON7AL2PLB7MNIXF

not attested not anchored not stored refs pending

Involution algebroids: a generalisation of Lie algebroids for tangent categories

Benjamin MacAdam, Matthew Burke

arxiv:1904.06594 v3 · 2019-04-13 · math.CT · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BNCK6BSRFBGON7AL2PLB7MNIXF}

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	2026-05-17T23:46:25.694384Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0b44af0651284ce6fc0bd3d61fb1a8b94a2251ad691642009074c4186771bc92

Aliases

arxiv: 1904.06594 · arxiv_version: 1904.06594v3 · doi: 10.48550/arxiv.1904.06594 · pith_short_12: BNCK6BSRFBGO · pith_short_16: BNCK6BSRFBGON7AL · pith_short_8: BNCK6BSR

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/BNCK6BSRFBGON7AL2PLB7MNIXF \
  | 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: 0b44af0651284ce6fc0bd3d61fb1a8b94a2251ad691642009074c4186771bc92

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3f20a29638395e8f9a4c20ffc06c773f41a5d06cb25c16e0f2f707295c9a5c47",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CT",
    "submitted_at": "2019-04-13T22:06:23Z",
    "title_canon_sha256": "ddabfd6776e6925fa01210d88823aa874c2ae7caa8050d83ecbf9e63c05e32af"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.06594",
    "kind": "arxiv",
    "version": 3
  }
}