Pith Number

pith:RK2A5R2T

pith:2003:RK2A5R2TEESDDI5QKMZ7HEINZR

not attested not anchored not stored refs pending

Camera Calibration: a USU Implementation

Kevin L. Moore, Lili Ma, YangQuan Chen

arxiv:cs/0307072 v1 · 2003-07-31 · 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{RK2A5R2TEESDDI5QKMZ7HEINZR}

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	2026-05-18T01:06:49.355876Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8ab40ec753212431a3b05333f3910dcc7c1078d94644673e9ca0523a2cb55011

Aliases

arxiv: cs/0307072 · arxiv_version: cs/0307072v1 · doi: 10.48550/arxiv.cs/0307072 · pith_short_12: RK2A5R2TEESD · pith_short_16: RK2A5R2TEESDDI5Q · pith_short_8: RK2A5R2T

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/RK2A5R2TEESDDI5QKMZ7HEINZR \
  | 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: 8ab40ec753212431a3b05333f3910dcc7c1078d94644673e9ca0523a2cb55011

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "060cd244833ebe80cb30651d759a10d572fc9248149401c9a0ed7aeba87d63cd",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "cs.CV",
    "submitted_at": "2003-07-31T19:33:48Z",
    "title_canon_sha256": "7e1b315e2a8d52901bbb6abcea6b263a1c8686c14192fb73ff328fd31606f714"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cs/0307072",
    "kind": "arxiv",
    "version": 1
  }
}