Pith Number

pith:V5AVCEQS

pith:2014:V5AVCEQSXVPX6W47P6K5I6B3QI

not attested not anchored not stored refs pending

Optimal Time Random Access to Grammar-Compressed Strings in Small Space

Patrick Hagge Cording

arxiv:1410.4701 v4 · 2014-10-17 · 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{V5AVCEQSXVPX6W47P6K5I6B3QI}

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	2026-05-18T02:28:47.490947Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

af41511212bd5f7f5b9f7f95d4783b822aebd01dd9aa27198ad73945cf022441

Aliases

arxiv: 1410.4701 · arxiv_version: 1410.4701v4 · doi: 10.48550/arxiv.1410.4701 · pith_short_12: V5AVCEQSXVPX · pith_short_16: V5AVCEQSXVPX6W47 · pith_short_8: V5AVCEQS

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/V5AVCEQSXVPX6W47P6K5I6B3QI \
  | 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: af41511212bd5f7f5b9f7f95d4783b822aebd01dd9aa27198ad73945cf022441

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "87da05781a87895ae1c8a7e46707a98bd0da7147ef349005b9f1d57e457d23f0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2014-10-17T11:59:45Z",
    "title_canon_sha256": "003015b0084fda82c0eb7b6c9dca85518926864b0141150ccda15ef835802ba5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1410.4701",
    "kind": "arxiv",
    "version": 4
  }
}