Pith Number

pith:ONY3O4WP

pith:2025:ONY3O4WPCAJJI7MGIA2A74X7W6

not attested not anchored not stored refs pending

When does FTP become FPT?

Fedor V. Fomin, Laure Morelle, Matthias Bentert, Petr A. Golovach

arxiv:2506.17008 v1 · 2025-06-20 · cs.DS · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ONY3O4WPCAJJI7MGIA2A74X7W6}

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	2026-07-05T11:24:54.687361Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7371b772cf1012947d8640340ff2ffb79fb50b140dcc00ad2c69fcc04f99dd1d

Aliases

arxiv: 2506.17008 · arxiv_version: 2506.17008v1 · doi: 10.48550/arxiv.2506.17008 · pith_short_12: ONY3O4WPCAJJ · pith_short_16: ONY3O4WPCAJJI7MG · pith_short_8: ONY3O4WP

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/ONY3O4WPCAJJI7MGIA2A74X7W6 \
  | 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: 7371b772cf1012947d8640340ff2ffb79fb50b140dcc00ad2c69fcc04f99dd1d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "86fc3fc422a40ed57ea712322515ff6268bc7572d0596e83a40990eed4f2715e",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2025-06-20T14:05:08Z",
    "title_canon_sha256": "1b16eebb2bcda422652b2e22dfcf8ef179542382be95fc03b18c26097407e7f1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.17008",
    "kind": "arxiv",
    "version": 1
  }
}