Pith Number

pith:UAJJLDTW

pith:2013:UAJJLDTWP5DWXEWJWA4KRKUY5N

not attested not anchored not stored refs pending

RAM-Efficient External Memory Sorting

Lars Arge, Mikkel Thorup

arxiv:1312.2018 v2 · 2013-12-06 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UAJJLDTWP5DWXEWJWA4KRKUY5N}

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	2026-05-18T03:05:08.372928Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a012958e767f476b92c9b038a8aa98eb6863011a284df4efc70b90c469269f11

Aliases

arxiv: 1312.2018 · arxiv_version: 1312.2018v2 · doi: 10.48550/arxiv.1312.2018 · pith_short_12: UAJJLDTWP5DW · pith_short_16: UAJJLDTWP5DWXEWJ · pith_short_8: UAJJLDTW

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/UAJJLDTWP5DWXEWJWA4KRKUY5N \
  | 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: a012958e767f476b92c9b038a8aa98eb6863011a284df4efc70b90c469269f11

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "414e55f125be762ea6275f54ff58dd7f8f72ccc1e52c37cd867042503e96e5f9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2013-12-06T21:26:44Z",
    "title_canon_sha256": "ff02b5a6fa151c098fef84097f549ec13733d3a25ca1318e15e458beb266eeb0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.2018",
    "kind": "arxiv",
    "version": 2
  }
}