Pith Number

pith:5ZP52B7G

pith:2026:5ZP52B7G6SJJEE56FOHD2HK7VN

not attested not anchored not stored refs pending

Learning a directed acyclic graph with additive heteroscedastic errors

Chunlin Li, Li Chen, Xintao Xia, Yue Hu

arxiv:2605.26515 v1 · 2026-05-26 · stat.ME

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5ZP52B7G6SJJEE56FOHD2HK7VN}

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	2026-05-27T01:05:24.008642Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ee5fdd07e6f4929213be2b8e3d1d5fab7442a2493692fdd5e572dbdd20183188

Aliases

arxiv: 2605.26515 · arxiv_version: 2605.26515v1 · doi: 10.48550/arxiv.2605.26515 · pith_short_12: 5ZP52B7G6SJJ · pith_short_16: 5ZP52B7G6SJJEE56 · pith_short_8: 5ZP52B7G

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/5ZP52B7G6SJJEE56FOHD2HK7VN \
  | 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: ee5fdd07e6f4929213be2b8e3d1d5fab7442a2493692fdd5e572dbdd20183188

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "039833fe20229ebe54cb7070c19f8ecfa297a5c344c1ac4b654a47c9d3ddd5cc",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2026-05-26T03:57:58Z",
    "title_canon_sha256": "56eea48a4a031a703be1337d03a2095e26965d1d009a27e3c7d3a548bbebd039"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.26515",
    "kind": "arxiv",
    "version": 1
  }
}