Pith Number

pith:5ID4NKPO

pith:2021:5ID4NKPOMSVCRGCQCASCKQR4PR

not attested not anchored not stored refs pending

Verifying Concurrent Multicopy Search Structures

Dennis Shasha, Nisarg Patel, Siddharth Krishna, Thomas Wies

arxiv:2109.05631 v1 · 2021-09-12 · cs.PL · cs.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{5ID4NKPOMSVCRGCQCASCKQR4PR}

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	2026-07-05T03:13:40.763933Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ea07c6a9ee64aa289850102425423c7c7b5eba2826608377ef621a3280591875

Aliases

arxiv: 2109.05631 · arxiv_version: 2109.05631v1 · doi: 10.48550/arxiv.2109.05631 · pith_short_12: 5ID4NKPOMSVC · pith_short_16: 5ID4NKPOMSVCRGCQ · pith_short_8: 5ID4NKPO

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/5ID4NKPOMSVCRGCQCASCKQR4PR \
  | 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: ea07c6a9ee64aa289850102425423c7c7b5eba2826608377ef621a3280591875

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "97ea72eaced5bed00d58f47c7b0197b5fa191f81e6242a36c2480c635f1123dc",
    "cross_cats_sorted": [
      "cs.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2021-09-12T23:00:16Z",
    "title_canon_sha256": "ddc86a6f2c37b05e989d5d4d781b0241af536532251468f395566357145ddd7d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.05631",
    "kind": "arxiv",
    "version": 1
  }
}