Pith Number

pith:QFF4KBXL

pith:2017:QFF4KBXLL3J65SLNZ25YIHTE4S

not attested not anchored not stored refs pending

On Deformations of Gorenstein-projective modules over Nakayama and triangular matrix algebras

Jose A. Velez-Marulanda

arxiv:1709.05391 v5 · 2017-09-15 · math.RT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QFF4KBXLL3J65SLNZ25YIHTE4S}

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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	2026-05-17T23:50:38.852436Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

814bc506eb5ed3eec96dcebb841e64e4a4b276dd4979037c877bbc046ee721d8

Aliases

arxiv: 1709.05391 · arxiv_version: 1709.05391v5 · doi: 10.48550/arxiv.1709.05391 · pith_short_12: QFF4KBXLL3J6 · pith_short_16: QFF4KBXLL3J65SLN · pith_short_8: QFF4KBXL

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/QFF4KBXLL3J65SLNZ25YIHTE4S \
  | 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: 814bc506eb5ed3eec96dcebb841e64e4a4b276dd4979037c877bbc046ee721d8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d8761009113ca121bcfbe13ed9fc43a5cddc494246e8712d56cd0f6e384346b1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RT",
    "submitted_at": "2017-09-15T20:29:27Z",
    "title_canon_sha256": "026042cabe4f0bdd64212e9fca78d14b501f8046cc5e88a311b9c95dba507045"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.05391",
    "kind": "arxiv",
    "version": 5
  }
}