Pith Number

pith:WATAX6J2

pith:2022:WATAX6J2FE5ASLUO4FEUQT745Z

not attested not anchored not stored refs pending

A Taxonomy of Schema Changes for NoSQL Databases

Alberto Hern\'andez Chill\'on, Diego Sevilla Ruiz, Jes\'us Garc\'ia Molina, Meike Klettke

arxiv:2205.11660 v1 · 2022-05-23 · 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{WATAX6J2FE5ASLUO4FEUQT745Z}

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	2026-07-05T04:26:06.100302Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b0260bf93a293a092e8ee149484ffcee4069b022a2baaa679b8157843002cbff

Aliases

arxiv: 2205.11660 · arxiv_version: 2205.11660v1 · doi: 10.48550/arxiv.2205.11660 · pith_short_12: WATAX6J2FE5A · pith_short_16: WATAX6J2FE5ASLUO · pith_short_8: WATAX6J2

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/WATAX6J2FE5ASLUO4FEUQT745Z \
  | 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: b0260bf93a293a092e8ee149484ffcee4069b022a2baaa679b8157843002cbff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e3f2e12801d07a6b9515be4d85803a0fede28c688f880d50b08d85d3767060bf",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2022-05-23T22:51:05Z",
    "title_canon_sha256": "11fbc3915c93fdade19af9d26516a87a4989c3bf42cbba69db352ee7a66ba768"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2205.11660",
    "kind": "arxiv",
    "version": 1
  }
}