Pith Number

pith:33REUXNY

pith:2013:33REUXNYMQL4MYCVIMRX5VW3US

not attested not anchored not stored refs pending

Numerical Optical Centroid Measurements

J\"org Evers, Qurrat-ul-Ain Gulfam

arxiv:1301.0774 v1 · 2013-01-04 · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{33REUXNYMQL4MYCVIMRX5VW3US}

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	2026-05-18T00:53:21.385181Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dee24a5db86417c6605543237ed6dba4823f4d462a7278c7f7ce2326b7b476cf

Aliases

arxiv: 1301.0774 · arxiv_version: 1301.0774v1 · doi: 10.48550/arxiv.1301.0774 · pith_short_12: 33REUXNYMQL4 · pith_short_16: 33REUXNYMQL4MYCV · pith_short_8: 33REUXNY

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/33REUXNYMQL4MYCVIMRX5VW3US \
  | 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: dee24a5db86417c6605543237ed6dba4823f4d462a7278c7f7ce2326b7b476cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b6850d3a6ce5245bf057097bf74a7196e293d7344616c47b9a7e021ec62817e3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-01-04T17:23:55Z",
    "title_canon_sha256": "142f660e1195fc56a1571f7ebb77321da5be5cb55c803af5a30fe5290810d081"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.0774",
    "kind": "arxiv",
    "version": 1
  }
}