Pith Number

pith:W22VZPQJ

pith:2021:W22VZPQJS5MPHH5YKUFF5I7MYQ

not attested not anchored not stored refs pending

Grammar Index By Induced Suffix Sorting

Dominik K\"oppl, Hideo Bannai, Masayuki Takeda, Shunsuke Inenaga, Tooru Akagi, Yuto Nakashima

arxiv:2105.13744 v2 · 2021-05-28 · 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{W22VZPQJS5MPHH5YKUFF5I7MYQ}

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	2026-06-19T16:09:44.772796Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b6b55cbe099758f39fb8550a5ea3ecc407863aa018304829ee72bc4c0805c0fa

Aliases

arxiv: 2105.13744 · arxiv_version: 2105.13744v2 · doi: 10.48550/arxiv.2105.13744 · pith_short_12: W22VZPQJS5MP · pith_short_16: W22VZPQJS5MPHH5Y · pith_short_8: W22VZPQJ

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/W22VZPQJS5MPHH5YKUFF5I7MYQ \
  | 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: b6b55cbe099758f39fb8550a5ea3ecc407863aa018304829ee72bc4c0805c0fa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e5376459090b1ba538f0310ba9a4fc625f7822fb42592f851c8ba3da4adc4541",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2021-05-28T11:15:05Z",
    "title_canon_sha256": "86cf4c2871d8d2870375296296845e043212d935c839a08408e60ad15c163f55"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.13744",
    "kind": "arxiv",
    "version": 2
  }
}