Pith Number

pith:XAL2BQTZ

pith:2019:XAL2BQTZCQ46O6QT6KTKOAWBPD

not attested not anchored not stored refs pending

MTFS: Merkle-Tree-Based File System

Jia Kan, Kyeong Soo Kim

arxiv:1902.09100 v2 · 2019-02-25 · cs.NI · cs.CR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XAL2BQTZCQ46O6QT6KTKOAWBPD}

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	2026-05-17T23:48:41.615606Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b817a0c2791439e77a13f2a6a702c178dabe8c7260119ea35a38fbe994ba2fc3

Aliases

arxiv: 1902.09100 · arxiv_version: 1902.09100v2 · doi: 10.48550/arxiv.1902.09100 · pith_short_12: XAL2BQTZCQ46 · pith_short_16: XAL2BQTZCQ46O6QT · pith_short_8: XAL2BQTZ

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/XAL2BQTZCQ46O6QT6KTKOAWBPD \
  | 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: b817a0c2791439e77a13f2a6a702c178dabe8c7260119ea35a38fbe994ba2fc3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "51300bca6d50da2cb6217300de996e9ddd205d4ba8276e80da1cf7e853650b59",
    "cross_cats_sorted": [
      "cs.CR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NI",
    "submitted_at": "2019-02-25T06:08:48Z",
    "title_canon_sha256": "c4411b80f4f75b6c697e7906e15d6822beff6fdc91dd8ec1dfacc6a741e9ec6f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.09100",
    "kind": "arxiv",
    "version": 2
  }
}