Pith Number

pith:2A5L447I

pith:2026:2A5L447IBRJK5QOU275BEW3XQN

not attested not anchored not stored refs pending

Witness robustness: An operational quantifier of measurement resources via free state discrimination

Aby Philip, Alexander Streltsov, Jingsong Ao

arxiv:2607.27892 v1 · 2026-07-30 · 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{2A5L447IBRJK5QOU275BEW3XQN}

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	2026-07-31T01:34:38.170801Z
Builder	pith-number-builder-2026-05-17-v1
Signature	unsigned_v0
Schema	pith-number/v1.0

Canonical hash

d03abe73e80c52aec1d4d7fa125b778350c30769ca4b31cd2ba35dfe94b5bea3

Aliases

arxiv: 2607.27892 · arxiv_version: 2607.27892v1 · doi: 10.48550/arxiv.2607.27892 · pith_short_12: 2A5L447IBRJK · pith_short_16: 2A5L447IBRJK5QOU · pith_short_8: 2A5L447I

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/2A5L447IBRJK5QOU275BEW3XQN \
  | 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: d03abe73e80c52aec1d4d7fa125b778350c30769ca4b31cd2ba35dfe94b5bea3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d56003ecae832216daf0a410e38b7b163fddb45cbdbd305a9d9b91c9b5df8bf9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-07-30T09:08:55Z",
    "title_canon_sha256": "bd4af0ef095a36251fb0196d42e42158583279039f978320457f7c8a61ca249a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.27892",
    "kind": "arxiv",
    "version": 1
  }
}