Pith Number

pith:QUVRIYVY

pith:2014:QUVRIYVYCDCEN7YHMVVOMAJ42H

not attested not anchored not stored refs pending

Tight lower bound for the channel assignment problem

Arkadiusz Socala

arxiv:1407.7162 v1 · 2014-07-26 · 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{QUVRIYVYCDCEN7YHMVVOMAJ42H}

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	2026-05-18T02:46:23.782870Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

852b1462b810c446ff07656ae6013cd1e5632b0286c4848d5700e95fc5b0e283

Aliases

arxiv: 1407.7162 · arxiv_version: 1407.7162v1 · doi: 10.48550/arxiv.1407.7162 · pith_short_12: QUVRIYVYCDCE · pith_short_16: QUVRIYVYCDCEN7YH · pith_short_8: QUVRIYVY

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/QUVRIYVYCDCEN7YHMVVOMAJ42H \
  | 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: 852b1462b810c446ff07656ae6013cd1e5632b0286c4848d5700e95fc5b0e283

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a3a37c3785f9a7c6a951c8983479f8835fb56ce7bad8b2c87e9f28b6f46d4cc6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2014-07-26T22:21:35Z",
    "title_canon_sha256": "d2b9a025353a81117fed1152ae22d4ac89e986837c102d1f95a66e94d4322e25"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.7162",
    "kind": "arxiv",
    "version": 1
  }
}