Pith Number

pith:QOHPSBNS

pith:2026:QOHPSBNSZCFHFMQQLUN3PAV7WF

not attested not anchored not stored refs pending

A Splitting Architecture for Exact Reduced Coulomb Friction

Dinesh K. Pai, Hongcheng Song, Uri M. Ascher, Ye Fan

arxiv:2607.19599 v1 · 2026-07-21 · cs.GR · cs.NA · cs.RO · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QOHPSBNSZCFHFMQQLUN3PAV7WF}

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	2026-07-23T00:23:58.653548Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

838ef905b2c88a72b2105d1bb782bfb163930824889d9e3127af6dfa4d79f5ea

Aliases

arxiv: 2607.19599 · arxiv_version: 2607.19599v1 · doi: 10.48550/arxiv.2607.19599 · pith_short_12: QOHPSBNSZCFH · pith_short_16: QOHPSBNSZCFHFMQQ · pith_short_8: QOHPSBNS

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/QOHPSBNSZCFHFMQQLUN3PAV7WF \
  | 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: 838ef905b2c88a72b2105d1bb782bfb163930824889d9e3127af6dfa4d79f5ea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b9069dec873ae26310dfff3d3576fdc3d7688bea2d22d292a5bdbc4e14190c13",
    "cross_cats_sorted": [
      "cs.NA",
      "cs.RO",
      "math.NA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.GR",
    "submitted_at": "2026-07-21T22:00:12Z",
    "title_canon_sha256": "a6d23cc85f15276cd713dc6d33aa39ce5d5f352668cb052b1114e5b1c5d311fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.19599",
    "kind": "arxiv",
    "version": 1
  }
}