Pith Number

pith:O7GYPSPF

pith:2015:O7GYPSPFEXI4MRSVSGMZLA5DEB

not attested not anchored not stored refs pending

Finding Non-Zero Stable Fixed Points of the Weighted Kuramoto model is NP-hard

Richard Taylor

arxiv:1502.06688 v1 · 2015-02-24 · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{O7GYPSPFEXI4MRSVSGMZLA5DEB}

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	2026-05-18T02:26:29.424563Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

77cd87c9e525d1c6465591999583a3204f38003e700357a4d05be025f739243b

Aliases

arxiv: 1502.06688 · arxiv_version: 1502.06688v1 · doi: 10.48550/arxiv.1502.06688 · pith_short_12: O7GYPSPFEXI4 · pith_short_16: O7GYPSPFEXI4MRSV · pith_short_8: O7GYPSPF

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/O7GYPSPFEXI4MRSVSGMZLA5DEB \
  | 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: 77cd87c9e525d1c6465591999583a3204f38003e700357a4d05be025f739243b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "562fc2e8f83728ef518ce1b148988000d7daba079353dea7509516d788cb81f1",
    "cross_cats_sorted": [
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2015-02-24T05:18:43Z",
    "title_canon_sha256": "47b9171ab39f2e32d5a84f6c706aad1f7e2257298206663a766111c44d53fb00"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.06688",
    "kind": "arxiv",
    "version": 1
  }
}