Pith Number

pith:SX5YOAZR

pith:2000:SX5YOAZRWTW22KVXRMGKDWGYYF

not attested not anchored not stored refs pending

If P \neq NP then Some Strongly Noninvertible Functions are Invertible

J\"org Rothe, Kari Pasanen, Lane A. Hemaspaandra

arxiv:cs/0010011 v1 · 2000-10-06 · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SX5YOAZRWTW22KVXRMGKDWGYYF}

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	2026-05-18T01:09:08.440466Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

95fb870331b4edad2ab78b0ca1d8d8c153f909000cce89dd7bde5550533aa1c4

Aliases

arxiv: cs/0010011 · arxiv_version: cs/0010011v1 · doi: 10.48550/arxiv.cs/0010011 · pith_short_12: SX5YOAZRWTW2 · pith_short_16: SX5YOAZRWTW22KVX · pith_short_8: SX5YOAZR

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/SX5YOAZRWTW22KVXRMGKDWGYYF \
  | 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: 95fb870331b4edad2ab78b0ca1d8d8c153f909000cce89dd7bde5550533aa1c4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4da7f40d69344e8100b1862bcddf5974cf346d6a1e10e5bbe8da3904de4319db",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "cs.CC",
    "submitted_at": "2000-10-06T18:45:21Z",
    "title_canon_sha256": "d0a0b51d2b5fce89a7d4b966b1b2218c17d82e43bc472d46d60308505992ff03"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cs/0010011",
    "kind": "arxiv",
    "version": 1
  }
}