Pith Number

pith:WD3IHYKT

pith:2013:WD3IHYKTEBVFLSZSVYZ2R5WDPB

not attested not anchored not stored refs pending

Weighted Least Squares Fit of an Ellipse to Describe Complete or Spotty Diffraction Rings on a Planar 2D Detector

Michael Drakopoulos, Michael L. Hart

arxiv:1311.5430 v1 · 2013-11-21 · cond-mat.mtrl-sci

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WD3IHYKTEBVFLSZSVYZ2R5WDPB}

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	2026-05-18T03:06:33.442500Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b0f683e153206a55cb32ae33a8f6c3787b49082a536787446e395e13c5477f8b

Aliases

arxiv: 1311.5430 · arxiv_version: 1311.5430v1 · doi: 10.48550/arxiv.1311.5430 · pith_short_12: WD3IHYKTEBVF · pith_short_16: WD3IHYKTEBVFLSZS · pith_short_8: WD3IHYKT

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/WD3IHYKTEBVFLSZSVYZ2R5WDPB \
  | 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: b0f683e153206a55cb32ae33a8f6c3787b49082a536787446e395e13c5477f8b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "75868ac0ecc1d4b2a7fb0ce6f92a76e38965d8f2645f026f15c080908a650974",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2013-11-21T14:55:55Z",
    "title_canon_sha256": "ae727803a783ac91eac199d890ebebc0153835831ce68c11c7022735dfb9761a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.5430",
    "kind": "arxiv",
    "version": 1
  }
}