Pith Number

pith:OCDRE2PX

pith:2019:OCDRE2PXX564HP3NEQQBCP6D7N

not attested not anchored not stored refs pending

Looking Back at Postgres

Joseph M. Hellerstein

arxiv:1901.01973 v1 · 2019-01-07 · 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{OCDRE2PXX564HP3NEQQBCP6D7N}

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.

Cited by

1 paper in Pith

An Approach Based on Bayesian Networks for Query Selectivity Estimation

Receipt and verification

First computed	2026-05-17T23:56:48.969902Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

70871269f7bf7dc3bf6d2420113fc3fb77bdb2fbdf09eaca1db75f32c23b4117

Aliases

arxiv: 1901.01973 · arxiv_version: 1901.01973v1 · doi: 10.48550/arxiv.1901.01973 · pith_short_12: OCDRE2PXX564 · pith_short_16: OCDRE2PXX564HP3N · pith_short_8: OCDRE2PX

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/OCDRE2PXX564HP3NEQQBCP6D7N \
  | 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: 70871269f7bf7dc3bf6d2420113fc3fb77bdb2fbdf09eaca1db75f32c23b4117

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f9c066fa9b184e9da36945f5174b279735b36b0f6f5420eeea010410062cc65c",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2019-01-07T18:59:51Z",
    "title_canon_sha256": "84ab16b838e0664c83e622f2e5df82cadf680a13586ee5ece2eca1b6bc074f88"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.01973",
    "kind": "arxiv",
    "version": 1
  }
}