Pith Number

pith:INQGCXCD

pith:2010:INQGCXCDWWCDBCRP4UMZNENXVY

not attested not anchored not stored refs pending

Invariants of Relative Right and Contact Equivalences

Imran Ahmed, Maria Aparecida Soares Ruas

arxiv:1003.1746 v2 · 2010-03-08 · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{INQGCXCDWWCDBCRP4UMZNENXVY}

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	2026-05-17T23:49:18.295677Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4360615c43b584308a2fe5199691b7ae34ec7435042e2d37236715bf6c40c1a4

Aliases

arxiv: 1003.1746 · arxiv_version: 1003.1746v2 · doi: 10.48550/arxiv.1003.1746 · pith_short_12: INQGCXCDWWCD · pith_short_16: INQGCXCDWWCDBCRP · pith_short_8: INQGCXCD

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/INQGCXCDWWCDBCRP4UMZNENXVY \
  | 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: 4360615c43b584308a2fe5199691b7ae34ec7435042e2d37236715bf6c40c1a4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "50da9ad4e66be2a10074850c4f5e669cf5adac7d885ea3065bc1c51b677d215e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2010-03-08T22:36:30Z",
    "title_canon_sha256": "006b3874be783280161b6063c04e5aa7d99134ef7dc73b135add2ac3f05d8798"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1003.1746",
    "kind": "arxiv",
    "version": 2
  }
}