Pith Number

pith:UCREKHOY

pith:2022:UCREKHOYBRX7LV2EDIT2L5XN2S

not attested not anchored not stored refs pending

Finding Label and Model Errors in Perception Data With Learned Observation Assertions

Daniel Kang, Matei Zaharia, Nikos Arechiga, Peter Bailis, Sudeep Pillai

arxiv:2201.05797 v1 · 2022-01-15 · cs.DB

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UCREKHOYBRX7LV2EDIT2L5XN2S}

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	2026-07-05T03:48:51.759972Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a0a2451dd80c6ff5d7441a27a5f6edd495390888398648afa0788de946da759b

Aliases

arxiv: 2201.05797 · arxiv_version: 2201.05797v1 · doi: 10.48550/arxiv.2201.05797 · pith_short_12: UCREKHOYBRX7 · pith_short_16: UCREKHOYBRX7LV2E · pith_short_8: UCREKHOY

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/UCREKHOYBRX7LV2EDIT2L5XN2S \
  | 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: a0a2451dd80c6ff5d7441a27a5f6edd495390888398648afa0788de946da759b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "caccd5f27664495a294c893e080ffd33d44bac966abaca3887c3966da8c918d9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2022-01-15T09:05:22Z",
    "title_canon_sha256": "da7ade9b90850b12814e733bf3f00ce9e7f65cd568a8f53d9ff184e749734e0e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2201.05797",
    "kind": "arxiv",
    "version": 1
  }
}