Pith Number

pith:T5TTHC4Y

pith:2025:T5TTHC4Y6CZ4366B2Q4YP6SDML

not attested not anchored not stored refs pending

QMDB: Quick Merkle Database

Bryan Pellegrino, Daniel Wong, Isaac Zhang, Kelvin Wong, Mignon Li, Ryan Zarick, Thomas Kim

arxiv:2501.05262 v3 · 2025-01-09 · cs.NI · cs.DB

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{T5TTHC4Y6CZ4366B2Q4YP6SDML}

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	2026-07-05T10:08:27.400040Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9f67338b98f0b3cdfbc1d43987fa4362c4243b8a37d45904ad16a5b6d54f055f

Aliases

arxiv: 2501.05262 · arxiv_version: 2501.05262v3 · doi: 10.48550/arxiv.2501.05262 · pith_short_12: T5TTHC4Y6CZ4 · pith_short_16: T5TTHC4Y6CZ4366B · pith_short_8: T5TTHC4Y

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/T5TTHC4Y6CZ4366B2Q4YP6SDML \
  | 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: 9f67338b98f0b3cdfbc1d43987fa4362c4243b8a37d45904ad16a5b6d54f055f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aa3420ba2913d0f722f18db21da08dae21474b204a70a4eaf3c6b90e53e4cb77",
    "cross_cats_sorted": [
      "cs.DB"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NI",
    "submitted_at": "2025-01-09T14:16:43Z",
    "title_canon_sha256": "06540ce416e56d2e7043879019a1483fdc42bae7258ec977a94eec36f13c5940"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.05262",
    "kind": "arxiv",
    "version": 3
  }
}