Pith Number

pith:IUYN4MYD

pith:2018:IUYN4MYDUDSXL4SQRAYWHIRSIZ

not attested not anchored not stored refs pending

SOS lower bounds with hard constraints: think global, act local

Pravesh Kothari, Ryan O'Donnell, Tselil Schramm

arxiv:1809.01207 v1 · 2018-09-04 · cs.DS · 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{IUYN4MYDUDSXL4SQRAYWHIRSIZ}

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	2026-05-18T00:06:31.391480Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4530de3303a0e575f250883163a2324646607fca7dbe47a934324e13c3f19ea2

Aliases

arxiv: 1809.01207 · arxiv_version: 1809.01207v1 · doi: 10.48550/arxiv.1809.01207 · pith_short_12: IUYN4MYDUDSX · pith_short_16: IUYN4MYDUDSXL4SQ · pith_short_8: IUYN4MYD

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/IUYN4MYDUDSXL4SQRAYWHIRSIZ \
  | 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: 4530de3303a0e575f250883163a2324646607fca7dbe47a934324e13c3f19ea2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7209b7b0d5ec4015902d0989930cc65d331c4cd1ce1a7a6ba12c2a831f915b87",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2018-09-04T19:11:03Z",
    "title_canon_sha256": "ce617ecb474ef98d25ab62d4dc553f22d29f27ad8a0bcb86697aca379eef6099"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.01207",
    "kind": "arxiv",
    "version": 1
  }
}