Pith Number

pith:X3ZZ3YFS

pith:2009:X3ZZ3YFSRQWV5WVMTNXRLXTZDQ

not attested not anchored not stored refs pending

Measuring Measurement: Theory and Practice

A. Feito, H. Coldenstrodt-Ronge, I.A. Walmsley, J. Eisert, J.S. Lundeen, M.B. Plenio

arxiv:0906.3440 v1 · 2009-06-18 · 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{X3ZZ3YFSRQWV5WVMTNXRLXTZDQ}

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	2026-07-04T15:51:58.817925Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bef39de0b28c2d5edaac9b6f15de791c2862b13f167f184035c4ece8de8c3259

Aliases

arxiv: 0906.3440 · arxiv_version: 0906.3440v1 · doi: 10.48550/arxiv.0906.3440 · pith_short_12: X3ZZ3YFSRQWV · pith_short_16: X3ZZ3YFSRQWV5WVM · pith_short_8: X3ZZ3YFS

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/X3ZZ3YFSRQWV5WVMTNXRLXTZDQ \
  | 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: bef39de0b28c2d5edaac9b6f15de791c2862b13f167f184035c4ece8de8c3259

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0844e307aacfcf8e08731c4ce5f80b5fc82b66adf2d5bfe6d3c718eecbf5d871",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-06-18T18:08:23Z",
    "title_canon_sha256": "9fb4816e414549416fce59167343076018af60403094ed204a656150c578a7dd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.3440",
    "kind": "arxiv",
    "version": 1
  }
}