Pith Number

pith:HSOO2CO3

pith:2017:HSOO2CO36UGBORF3YKZMBW37UB

not attested not anchored not stored refs pending

Categorical formal punctured neighborhood of infinity, I

Alexander I. Efimov

arxiv:1711.00756 v1 · 2017-11-02 · math.AG · math.CT · math.KT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HSOO2CO36UGBORF3YKZMBW37UB}

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	2026-05-18T00:31:23.448632Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c9ced09dbf50c1744bbc2b2c0db7fa06e3cdad4e8fabf5c3808fcf9a9304668

Aliases

arxiv: 1711.00756 · arxiv_version: 1711.00756v1 · doi: 10.48550/arxiv.1711.00756 · pith_short_12: HSOO2CO36UGB · pith_short_16: HSOO2CO36UGBORF3 · pith_short_8: HSOO2CO3

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/HSOO2CO36UGBORF3YKZMBW37UB \
  | 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: 3c9ced09dbf50c1744bbc2b2c0db7fa06e3cdad4e8fabf5c3808fcf9a9304668

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "efc08c203ae527ec22243db2f5176274e28e55dbba3ea3a297c35a845635743e",
    "cross_cats_sorted": [
      "math.CT",
      "math.KT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2017-11-02T14:22:35Z",
    "title_canon_sha256": "e1db6180981f9c3b09fd8db522198c66c95937b38dec4a6ffbafe6c4a3aac5b9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.00756",
    "kind": "arxiv",
    "version": 1
  }
}