Pith Number

pith:UVPEFC3N

pith:2026:UVPEFC3N5P2SIZXOP6J3IV65WF

not attested not anchored not stored refs pending

An example of a very non-movable effective divisor

Jihao Liu

arxiv:2605.20594 v1 · 2026-05-20 · 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{UVPEFC3N5P2SIZXOP6J3IV65WF}

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	2026-05-21T01:04:43.855511Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a55e428b6debf52466ee7f93b457ddb169aafcf4d44ef79b325f9d6517b24cf8

Aliases

arxiv: 2605.20594 · arxiv_version: 2605.20594v1 · doi: 10.48550/arxiv.2605.20594 · pith_short_12: UVPEFC3N5P2S · pith_short_16: UVPEFC3N5P2SIZXO · pith_short_8: UVPEFC3N

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/UVPEFC3N5P2SIZXOP6J3IV65WF \
  | 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: a55e428b6debf52466ee7f93b457ddb169aafcf4d44ef79b325f9d6517b24cf8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d97241c3209e541c743255f982b133e165b03656b535cefd8bceea2f183da0d6",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2026-05-20T01:03:22Z",
    "title_canon_sha256": "4c41d7641cbec9bf5de729282ec9bc2b8376c000a3b8dda66cb2330a2d08cef1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.20594",
    "kind": "arxiv",
    "version": 1
  }
}