Pith Number

pith:ME5WQCIP

pith:2026:ME5WQCIP4PFQGQSYKI5AXDFAQG

not attested not anchored not stored refs pending

Beyond Reprojection Error: Camera Calibration with 3D Targets

Andreas Weinmann, Arjan Kuijper, Dennis Ruppel, Hasan Kutlu, Kai A. Neumann, Martin Knuth, Pedro Santos

arxiv:2608.05066 v1 · 2026-08-05 · 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{ME5WQCIP4PFQGQSYKI5AXDFAQG}

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	2026-08-06T01:48:16.187665Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

613b68090fe3cb034258523a0b8ca081a1fb8ae6f8499e2b35cb905080357bd9

Aliases

arxiv: 2608.05066 · arxiv_version: 2608.05066v1 · doi: 10.48550/arxiv.2608.05066 · pith_short_12: ME5WQCIP4PFQ · pith_short_16: ME5WQCIP4PFQGQSY · pith_short_8: ME5WQCIP

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/ME5WQCIP4PFQGQSYKI5AXDFAQG \
  | 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: 613b68090fe3cb034258523a0b8ca081a1fb8ae6f8499e2b35cb905080357bd9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e42204f079dfbfae53d896ca9af693d686ef42fcba9a23277a5342ca890bdea9",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2026-08-05T17:12:21Z",
    "title_canon_sha256": "b13cb7ab6eb1d28a85923f6e36cc148d5c54ba9c7f48910b5048d4b00175f6d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2608.05066",
    "kind": "arxiv",
    "version": 1
  }
}