Pith Number

pith:UCH4ML6E

pith:2012:UCH4ML6EUICRYI2DSUQHADKEI2

not attested not anchored not stored refs pending

Homological Algebra for Superalgebras of Differentiable Functions

David Carchedi, Dmitry Roytenberg

arxiv:1212.3745 v1 · 2012-12-16 · math.AG · math.AT · math.DG · math.QA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UCH4ML6EUICRYI2DSUQHADKEI2}

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	2026-05-18T03:38:22.494432Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a08fc62fc4a2051c23439520700d4446ac37d98d51260d89c00fa1c3d2bce5d1

Aliases

arxiv: 1212.3745 · arxiv_version: 1212.3745v1 · doi: 10.48550/arxiv.1212.3745 · pith_short_12: UCH4ML6EUICR · pith_short_16: UCH4ML6EUICRYI2D · pith_short_8: UCH4ML6E

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/UCH4ML6EUICRYI2DSUQHADKEI2 \
  | 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: a08fc62fc4a2051c23439520700d4446ac37d98d51260d89c00fa1c3d2bce5d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "37a1151969c49c5978a2f544290f1b68fabc2057c6059bca901cf7649b4576cd",
    "cross_cats_sorted": [
      "math.AT",
      "math.DG",
      "math.QA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2012-12-16T02:56:30Z",
    "title_canon_sha256": "d81dadd1fcf6c6bf95f4c5ccbee787182149c61009dd1d48db598e08b392aac8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.3745",
    "kind": "arxiv",
    "version": 1
  }
}