Pith Number

pith:Q7DNTRLB

pith:2021:Q7DNTRLBF5FTTWUN7DXFRZOPDV

not attested not anchored not stored refs pending

ORCEA: Object Recognition by Continuous Evidence Assimilation

Oded Cohen

arxiv:2105.04807 v1 · 2021-05-11 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q7DNTRLBF5FTTWUN7DXFRZOPDV}

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	2026-07-05T02:39:24.451038Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

87c6d9c5612f4b39da8df8ee58e5cf1d4b64bc68b3f3cedcfb11b949b4b58fab

Aliases

arxiv: 2105.04807 · arxiv_version: 2105.04807v1 · doi: 10.48550/arxiv.2105.04807 · pith_short_12: Q7DNTRLBF5FT · pith_short_16: Q7DNTRLBF5FTTWUN · pith_short_8: Q7DNTRLB

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/Q7DNTRLBF5FTTWUN7DXFRZOPDV \
  | 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: 87c6d9c5612f4b39da8df8ee58e5cf1d4b64bc68b3f3cedcfb11b949b4b58fab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "576a36cd79301197665f4d38353c1e4594b14ae607ee34ceb700b563029ed757",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-05-11T06:38:55Z",
    "title_canon_sha256": "3e6f89546a0ed65ff4d4c2a9201378cadb632430c86ccc65f4d6b550257690b4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.04807",
    "kind": "arxiv",
    "version": 1
  }
}