Pith Number

pith:W7L54APA

pith:2021:W7L54APAQ2JAWZGUZR5QYDAQBL

not attested not anchored not stored refs pending

Local entropy theory and descriptive complexity

Felipe Garc\'ia-Ramos, Udayan B. Darji

arxiv:2107.09263 v2 · 2021-07-20 · math.DS · math.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W7L54APAQ2JAWZGUZR5QYDAQBL}

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.

Cited by

1 paper in Pith

Dynamical pair assignments

Receipt and verification

First computed	2026-07-05T06:01:09.419773Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b7d7de01e086920b64d4cc7b0c0c100adfbdc51e6ea7dab23021c377d46d5b1e

Aliases

arxiv: 2107.09263 · arxiv_version: 2107.09263v2 · doi: 10.48550/arxiv.2107.09263 · pith_short_12: W7L54APAQ2JA · pith_short_16: W7L54APAQ2JAWZGU · pith_short_8: W7L54APA

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/W7L54APAQ2JAWZGUZR5QYDAQBL \
  | 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: b7d7de01e086920b64d4cc7b0c0c100adfbdc51e6ea7dab23021c377d46d5b1e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1f85129a5022a4e276b88022f8401653c0eaa4f73f73850e069a2d5838923928",
    "cross_cats_sorted": [
      "math.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2021-07-20T05:06:19Z",
    "title_canon_sha256": "1e56c9b3f806c6a1e4357310d88c1d3eea0ddc9c46539c6d5ffa9cc5b6633622"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.09263",
    "kind": "arxiv",
    "version": 2
  }
}