Pith Number

pith:HIUGOAIQ

pith:2019:HIUGOAIQFDUAJPAZ6IOPZGD5WT

not attested not anchored not stored refs pending

Schema Validation and Evolution for Graph Databases

Alastair Green, Angela Bonifati, Eugenia Oshurko, Hannes Voigt, Peter Furniss, Russ Harmer

arxiv:1902.06427 v1 · 2019-02-18 · 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{HIUGOAIQFDUAJPAZ6IOPZGD5WT}

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	2026-05-17T23:53:45.545311Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3a2867011028e804bc19f21cfc987db4cfa5a83776a815f67d639234ea03b9c9

Aliases

arxiv: 1902.06427 · arxiv_version: 1902.06427v1 · doi: 10.48550/arxiv.1902.06427 · pith_short_12: HIUGOAIQFDUA · pith_short_16: HIUGOAIQFDUAJPAZ · pith_short_8: HIUGOAIQ

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/HIUGOAIQFDUAJPAZ6IOPZGD5WT \
  | 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: 3a2867011028e804bc19f21cfc987db4cfa5a83776a815f67d639234ea03b9c9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "049459e5df922abe95c84d47a0cb2747780dbc7fbf0c82d1a5e8d2dc4660db77",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2019-02-18T07:17:26Z",
    "title_canon_sha256": "a8915eb76783dd1e91cd3cab0f6d590deaa865dcfe038b9d4d5417bbc9ce1df2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.06427",
    "kind": "arxiv",
    "version": 1
  }
}