Pith Number

pith:RUQGG3JQ

pith:2018:RUQGG3JQJS6RTVFGTQ2KNSTNYI

not attested not anchored not stored refs pending

Longest Increasing Subsequence under Persistent Comparison Errors

Barbara Geissmann

arxiv:1808.03307 v1 · 2018-08-09 · 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{RUQGG3JQJS6RTVFGTQ2KNSTNYI}

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	2026-05-18T00:08:27.685731Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8d20636d304cbd19d4a69c34a6ca6dc218e0fb205fa06e6f269248fb71da5cd6

Aliases

arxiv: 1808.03307 · arxiv_version: 1808.03307v1 · doi: 10.48550/arxiv.1808.03307 · pith_short_12: RUQGG3JQJS6R · pith_short_16: RUQGG3JQJS6RTVFG · pith_short_8: RUQGG3JQ

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/RUQGG3JQJS6RTVFGTQ2KNSTNYI \
  | 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: 8d20636d304cbd19d4a69c34a6ca6dc218e0fb205fa06e6f269248fb71da5cd6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "106c70171b26eaedf310034d7a6d6e43631a02b20e15bb22e7435e934c5898a3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2018-08-09T19:06:40Z",
    "title_canon_sha256": "ca3771feec9c4eb36f32c55f2eca17b5357eb1b821f324e43ff9e5a61575a611"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.03307",
    "kind": "arxiv",
    "version": 1
  }
}