Pith Number

pith:K47SYQA2

pith:2019:K47SYQA2KOVOA2OR2GSNP3B45W

not attested not anchored not stored refs pending

Cache-Friendly Search Trees; or, In Which Everything Beats std::set

Brian Zhang, Jeffrey Barratt

arxiv:1907.01631 v1 · 2019-07-02 · cs.DS · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{K47SYQA2KOVOA2OR2GSNP3B45W}

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	2026-05-17T23:41:35.705052Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

573f2c401a53aae069d1d1a4d7ec3ced8fda69f5a1ac1c7008f50b6100e5b615

Aliases

arxiv: 1907.01631 · arxiv_version: 1907.01631v1 · doi: 10.48550/arxiv.1907.01631 · pith_short_12: K47SYQA2KOVO · pith_short_16: K47SYQA2KOVOA2OR · pith_short_8: K47SYQA2

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/K47SYQA2KOVOA2OR2GSNP3B45W \
  | 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: 573f2c401a53aae069d1d1a4d7ec3ced8fda69f5a1ac1c7008f50b6100e5b615

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "843f5ed4451bcb02b3e9ffceb21659e84c4b63baf36d9d98785dbcb213bcd699",
    "cross_cats_sorted": [
      "cs.IR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2019-07-02T20:55:47Z",
    "title_canon_sha256": "004dbf0e2be11d78ffc30a9a2eaf7e20ef09895f6b147a6ab5a971defa9bdcc2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.01631",
    "kind": "arxiv",
    "version": 1
  }
}