Pith Number

pith:NOHVPRI6

pith:2019:NOHVPRI63LCYU7AFLNQ7ZJRK62

not attested not anchored not stored refs pending

Unstable Motivic Homotopy Theory

Ben Williams, Kirsten Wickelgren

arxiv:1902.08857 v1 · 2019-02-23 · math.AT · math.AG · math.KT · math.NT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NOHVPRI63LCYU7AFLNQ7ZJRK62}

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	2026-05-17T23:52:49.668263Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b8f57c51edac58a7c055b61fca62af6adb726e8338197f647efd203bd14c971

Aliases

arxiv: 1902.08857 · arxiv_version: 1902.08857v1 · doi: 10.48550/arxiv.1902.08857 · pith_short_12: NOHVPRI63LCY · pith_short_16: NOHVPRI63LCYU7AF · pith_short_8: NOHVPRI6

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/NOHVPRI63LCYU7AFLNQ7ZJRK62 \
  | 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: 6b8f57c51edac58a7c055b61fca62af6adb726e8338197f647efd203bd14c971

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "366cab4c22953a2d98b9554f39a7dbb7fd74bb7724281e9fb59f2791784729ac",
    "cross_cats_sorted": [
      "math.AG",
      "math.KT",
      "math.NT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2019-02-23T22:19:29Z",
    "title_canon_sha256": "635bdf13eef1c257f6006c8fd3081ec5c8a9b8a79b874f1f78e8c97c54d00a43"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.08857",
    "kind": "arxiv",
    "version": 1
  }
}