Pith Number

pith:3VVHRAVY

pith:2013:3VVHRAVYUVMSAI2B6S53QUTUIK

not attested not anchored not stored refs pending

Inversion of adjunction for rational and Du Bois pairs

Karl Schwede, S\'andor J Kov\'acs

arxiv:1311.7193 v5 · 2013-11-28 · math.AG · math.AC

Open paper page JSON What is a Pith Number?

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

Receipt and verification

First computed	2026-05-18T01:10:11.150180Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dd6a7882b8a559202341f4bbb852744292b6d1c963bd1c05044b1c3e3e4f9d16

Aliases

arxiv: 1311.7193 · arxiv_version: 1311.7193v5 · doi: 10.48550/arxiv.1311.7193 · pith_short_12: 3VVHRAVYUVMS · pith_short_16: 3VVHRAVYUVMSAI2B · pith_short_8: 3VVHRAVY

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/3VVHRAVYUVMSAI2B6S53QUTUIK \
  | 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: dd6a7882b8a559202341f4bbb852744292b6d1c963bd1c05044b1c3e3e4f9d16

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0233282e42ee7e30a37941bf58eb716f2b9b8d8708d365183e9e146846e0a81a",
    "cross_cats_sorted": [
      "math.AC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2013-11-28T03:12:46Z",
    "title_canon_sha256": "8a342d52ad049b511bde904f256c72d27e05bd3f298ff3df95b690dd955adee5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.7193",
    "kind": "arxiv",
    "version": 5
  }
}