Pith Number

pith:QLROTQZC

pith:2012:QLROTQZCZU5R5EFUYUKV3S6X3I

not attested not anchored not stored refs pending

Space-Time Trade-offs for Stack-Based Algorithms

Kunikiko Sadakane, Luis Barba, Matias Korman, Rodrigo Silveira, Stefan Langerman

arxiv:1208.3663 v5 · 2012-08-17 · cs.CG · 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{QLROTQZCZU5R5EFUYUKV3S6X3I}

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	2026-05-18T02:49:03.439408Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

82e2e9c322cd3b1e90b4c5155dcbd7da31666d8fe9a3cb15496a578168f595f1

Aliases

arxiv: 1208.3663 · arxiv_version: 1208.3663v5 · doi: 10.48550/arxiv.1208.3663 · pith_short_12: QLROTQZCZU5R · pith_short_16: QLROTQZCZU5R5EFU · pith_short_8: QLROTQZC

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/QLROTQZCZU5R5EFUYUKV3S6X3I \
  | 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: 82e2e9c322cd3b1e90b4c5155dcbd7da31666d8fe9a3cb15496a578168f595f1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aa3a073398813eb9f9289e7447f5ec11173feff4080dd7e9ad842d4355c7a8ba",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2012-08-17T19:39:34Z",
    "title_canon_sha256": "b91d7fa59522108b8c68a5f21d3842df8995eaff343e634486df6a66c4ac5236"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.3663",
    "kind": "arxiv",
    "version": 5
  }
}