Pith Number

pith:MRMMBZQ2

pith:2023:MRMMBZQ2ANDDPLQ5TUHEQLCWME

not attested not anchored not stored refs pending

No More Nulls!

Yisu Remy Wang

arxiv:2307.15751 v1 · 2023-07-28 · 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{MRMMBZQ2ANDDPLQ5TUHEQLCWME}

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	2026-07-05T06:35:39.653335Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6458c0e61a034637ae1d9d0e482c5661252a316f910c598f7a593e5214102e2d

Aliases

arxiv: 2307.15751 · arxiv_version: 2307.15751v1 · doi: 10.48550/arxiv.2307.15751 · pith_short_12: MRMMBZQ2ANDD · pith_short_16: MRMMBZQ2ANDDPLQ5 · pith_short_8: MRMMBZQ2

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/MRMMBZQ2ANDDPLQ5TUHEQLCWME \
  | 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: 6458c0e61a034637ae1d9d0e482c5661252a316f910c598f7a593e5214102e2d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b15f09d94652077b7632750a84c9129735dc483d484baad8ef25c0d9f62df962",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2023-07-28T18:11:11Z",
    "title_canon_sha256": "7aeadd497ae173be5e4ddadf6f2868aad05f4051f9bea4f80051b89aa5295525"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2307.15751",
    "kind": "arxiv",
    "version": 1
  }
}