Pith Number

pith:FBEM6QHF

pith:2026:FBEM6QHFKHF6J63F3UTKKFPVQY

not attested not anchored not stored refs pending

Piper: A Programmable Distributed Training System

Andy Ruan, Gilbert Bernstein, Mat Jacob, Megan Frisella, Parker Gustafson, Shubham Tiwari, Stephanie Wang, Yi Pan

arxiv:2606.11169 v1 · 2026-06-09 · cs.DC · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FBEM6QHFKHF6J63F3UTKKFPVQY}

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	2026-06-10T01:11:15.068823Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2848cf40e551cbe4fb65dd26a515f58625aa48f33c436588d7c71caf3421b972

Aliases

arxiv: 2606.11169 · arxiv_version: 2606.11169v1 · doi: 10.48550/arxiv.2606.11169 · pith_short_12: FBEM6QHFKHF6 · pith_short_16: FBEM6QHFKHF6J63F · pith_short_8: FBEM6QHF

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/FBEM6QHFKHF6J63F3UTKKFPVQY \
  | 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: 2848cf40e551cbe4fb65dd26a515f58625aa48f33c436588d7c71caf3421b972

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "84f485f771bab84b6819097b8a55761f571c2bd5e8581dc45a6634642989d29d",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DC",
    "submitted_at": "2026-06-09T17:48:41Z",
    "title_canon_sha256": "94ff30c3dbaa15d005ad80ec6daabae6897de391ec0f80f7d5895eaf9f34c9d2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.11169",
    "kind": "arxiv",
    "version": 1
  }
}