Pith Number

pith:FBN7SNCO

pith:2025:FBN7SNCOGFXAVMC5IZ2VIL7SG4

not attested not anchored not stored refs pending

On 2-categories of extensions

D. Kaledin

arxiv:2505.17286 v1 · 2025-05-22 · 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{FBN7SNCOGFXAVMC5IZ2VIL7SG4}

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	2026-07-05T11:08:23.952519Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

285bf9344e316e0ab05d4675542ff2371a6a36dbe4f2288b8edbd18db5771768

Aliases

arxiv: 2505.17286 · arxiv_version: 2505.17286v1 · doi: 10.48550/arxiv.2505.17286 · pith_short_12: FBN7SNCOGFXA · pith_short_16: FBN7SNCOGFXAVMC5 · pith_short_8: FBN7SNCO

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/FBN7SNCOGFXAVMC5IZ2VIL7SG4 \
  | 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: 285bf9344e316e0ab05d4675542ff2371a6a36dbe4f2288b8edbd18db5771768

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3c93401567f1a5f53c7630a8b239ff1f869ee778b5ac0050f81b28906897663e",
    "cross_cats_sorted": [
      "math.CT",
      "math.KT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2025-05-22T21:02:32Z",
    "title_canon_sha256": "fba57949af28c1b8ce446cf624695e2c7459e2a6990b73cbf948d6fbfd7033a3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.17286",
    "kind": "arxiv",
    "version": 1
  }
}