Pith Number

pith:YSUD75MV

pith:2008:YSUD75MVVA355GYBBATLNPCNBG

not attested not anchored not stored refs pending

Homological Dimensions in Cotorsion Pairs

Lidia Angeleri Hugel, Octavio Mendoza Hernandez

arxiv:0808.1585 v1 · 2008-08-11 · math.RA · 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{YSUD75MVVA355GYBBATLNPCNBG}

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	2026-07-04T15:13:34.317646Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c4a83ff595a837de9b010826b6bc4d09827f08334668d6993bb4494ca543a4c0

Aliases

arxiv: 0808.1585 · arxiv_version: 0808.1585v1 · doi: 10.48550/arxiv.0808.1585 · pith_short_12: YSUD75MVVA35 · pith_short_16: YSUD75MVVA355GYB · pith_short_8: YSUD75MV

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/YSUD75MVVA355GYBBATLNPCNBG \
  | 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: c4a83ff595a837de9b010826b6bc4d09827f08334668d6993bb4494ca543a4c0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6b3c81eb28aaff99f12e46dba9f02bfea4ec08d85925be68f22d15996e71e5c1",
    "cross_cats_sorted": [
      "math.RT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2008-08-11T21:16:56Z",
    "title_canon_sha256": "a891cb231d0647459f22358209b59ad3c927a1da29a124fb40476d7b3f5084c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0808.1585",
    "kind": "arxiv",
    "version": 1
  }
}