Pith Number

pith:GVKY6KGN

pith:2026:GVKY6KGNSH3IBID5PF36PZLUKE

not attested not anchored not stored refs pending

On Ulam's Segment Motion Problem

Dragomir Grozev, Nikolai Nikolov

arxiv:2606.23268 v1 · 2026-06-22 · math.MG · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GVKY6KGNSH3IBID5PF36PZLUKE}

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	2026-06-23T03:14:15.291498Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

35558f28cd91f680a07d7977e7e574513f3f55538dfc48d1d42e0629e07635b6

Aliases

arxiv: 2606.23268 · arxiv_version: 2606.23268v1 · doi: 10.48550/arxiv.2606.23268 · pith_short_12: GVKY6KGNSH3I · pith_short_16: GVKY6KGNSH3IBID5 · pith_short_8: GVKY6KGN

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/GVKY6KGNSH3IBID5PF36PZLUKE \
  | 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: 35558f28cd91f680a07d7977e7e574513f3f55538dfc48d1d42e0629e07635b6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a817d7ca8f7346c6e8429cbcbbdd7d8f60df5c9f7658ee71cc0c293cc0c8ba58",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2026-06-22T12:48:13Z",
    "title_canon_sha256": "4f2b560d89f3b2fa5de01e22d1a1a2b16280c4d2543e07e4f796ec9b034118fd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.23268",
    "kind": "arxiv",
    "version": 1
  }
}