Pith Number

pith:IARJIKR4

pith:2022:IARJIKR4F5N2Z2TLT4ZISGI3RU

not attested not anchored not stored refs pending

Implementing the Comparison-Based External Sort

George Chernishev, Kirill Smirnov, Michael Polyntsov, Valentin Grigorev

arxiv:2207.12713 v1 · 2022-07-26 · cs.DB · cs.DS · cs.PF

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IARJIKR4F5N2Z2TLT4ZISGI3RU}

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	2026-07-05T04:43:50.432524Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4022942a3c2f5bacea6b9f3289191b8d1bbe941a65271822d2bcbc2dcd00446d

Aliases

arxiv: 2207.12713 · arxiv_version: 2207.12713v1 · doi: 10.48550/arxiv.2207.12713 · pith_short_12: IARJIKR4F5N2 · pith_short_16: IARJIKR4F5N2Z2TL · pith_short_8: IARJIKR4

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/IARJIKR4F5N2Z2TLT4ZISGI3RU \
  | 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: 4022942a3c2f5bacea6b9f3289191b8d1bbe941a65271822d2bcbc2dcd00446d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bdccf2e698d8889ef7605a92d8a0c73a57191c9f508c0ac7b1e90ab6ee2d4cef",
    "cross_cats_sorted": [
      "cs.DS",
      "cs.PF"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2022-07-26T08:00:15Z",
    "title_canon_sha256": "a2d9f3bc67d38152a7f650e000f22b74d9e50c87564f8d4d5549f629b774c9b8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2207.12713",
    "kind": "arxiv",
    "version": 1
  }
}