Pith Number

pith:PY74CRBY

pith:2018:PY74CRBYCMXL2JU6JKAFSDB7MS

not attested not anchored not stored refs pending

When photons are lying about where they have been

Izumi Tsutsui, Lev Vaidman

arxiv:1806.00695 v2 · 2018-06-02 · 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{PY74CRBYCMXL2JU6JKAFSDB7MS}

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	2026-05-18T00:08:06.669092Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e3fc14438132ebd269e4a80590c3f64b89b43782abbd4038baf24eeeb7322b0

Aliases

arxiv: 1806.00695 · arxiv_version: 1806.00695v2 · doi: 10.48550/arxiv.1806.00695 · pith_short_12: PY74CRBYCMXL · pith_short_16: PY74CRBYCMXL2JU6 · pith_short_8: PY74CRBY

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/PY74CRBYCMXL2JU6JKAFSDB7MS \
  | 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: 7e3fc14438132ebd269e4a80590c3f64b89b43782abbd4038baf24eeeb7322b0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3343497ce6be80a6dcc5e92cf5ccf2b86c75c02d43b750e0870089d796fb5e6a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2018-06-02T19:51:55Z",
    "title_canon_sha256": "0dc789ab5ed4c9c5b24d9fe97eb877236391ad5f3f5533a55ad9ab20314fb421"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.00695",
    "kind": "arxiv",
    "version": 2
  }
}