Pith Number

pith:UB5GP5FQ

pith:2005:UB5GP5FQUKAR5EG43VHFSXNTE2

not attested not anchored not stored refs pending

On $N$-differential graded algebras

Mauricio Angel, Rafael D\'iaz

arxiv:math/0504398 v6 · 2005-04-19 · math.DG · hep-th · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UB5GP5FQUKAR5EG43VHFSXNTE2}

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	2026-05-18T01:08:51.171168Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a07a67f4b0a2811e90dcdd4e595db326833c8ca2ab01fb189ee5118cb6727093

Aliases

arxiv: math/0504398 · arxiv_version: math/0504398v6 · doi: 10.48550/arxiv.math/0504398 · pith_short_12: UB5GP5FQUKAR · pith_short_16: UB5GP5FQUKAR5EG4 · pith_short_8: UB5GP5FQ

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/UB5GP5FQUKAR5EG43VHFSXNTE2 \
  | 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: a07a67f4b0a2811e90dcdd4e595db326833c8ca2ab01fb189ee5118cb6727093

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b2630c561cf90bc0f7c2643094e87b17ac98e2c3c13212307888e10601537965",
    "cross_cats_sorted": [
      "hep-th",
      "math-ph",
      "math.MP"
    ],
    "license": "",
    "primary_cat": "math.DG",
    "submitted_at": "2005-04-19T23:34:23Z",
    "title_canon_sha256": "bd23f2097b1fafa42381b9c20b5e0f23b9ce1a50215e6de4e313f42970267f13"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0504398",
    "kind": "arxiv",
    "version": 6
  }
}