Pith Number

pith:R4CYANXH

pith:2022:R4CYANXH7C6RVBRS2OFGHFBXZ6

not attested not anchored not stored refs pending

Pruning, cut trees, and the reconstruction problem

Hui He, Minmin Wang, Nicolas Broutin

arxiv:2210.13948 v3 · 2022-10-25 · math.PR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{R4CYANXH7C6RVBRS2OFGHFBXZ6}

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	2026-07-05T05:38:09.718872Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f058036e7f8bd1a8632d38a639437cfb6ca072921811021821574bfa6046498

Aliases

arxiv: 2210.13948 · arxiv_version: 2210.13948v3 · doi: 10.48550/arxiv.2210.13948 · pith_short_12: R4CYANXH7C6R · pith_short_16: R4CYANXH7C6RVBRS · pith_short_8: R4CYANXH

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/R4CYANXH7C6RVBRS2OFGHFBXZ6 \
  | 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: 8f058036e7f8bd1a8632d38a639437cfb6ca072921811021821574bfa6046498

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a502d5d030ec9ac864b63fbc4f18a0137236b8d99570cb460072901ed0a4116b",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "math.PR",
    "submitted_at": "2022-10-25T12:02:12Z",
    "title_canon_sha256": "2ab487bc8828d16d097f1064aaac566aa7afee42f7d7a716b48f6cfbcc97940a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2210.13948",
    "kind": "arxiv",
    "version": 3
  }
}