Pith Number

pith:ZWME3VIQ

pith:2017:ZWME3VIQZCOTUAYGEQWI7JILZM

not attested not anchored not stored refs pending

A Comment on "Asking photons where they have been in plain language"

Lev Vaidman

arxiv:1703.03615 v1 · 2017-03-10 · 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{ZWME3VIQZCOTUAYGEQWI7JILZM}

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	2026-05-18T00:48:58.532542Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cd984dd510c89d3a0306242c8fa50bcb2445eb92d0dcd561f276f550fe4884d3

Aliases

arxiv: 1703.03615 · arxiv_version: 1703.03615v1 · doi: 10.48550/arxiv.1703.03615 · pith_short_12: ZWME3VIQZCOT · pith_short_16: ZWME3VIQZCOTUAYG · pith_short_8: ZWME3VIQ

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/ZWME3VIQZCOTUAYGEQWI7JILZM \
  | 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: cd984dd510c89d3a0306242c8fa50bcb2445eb92d0dcd561f276f550fe4884d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aa9c6f0d3cfbc27cad5f83ffbb16c536a7cd265fb8c5ee13333fda5cf8645186",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2017-03-10T10:31:04Z",
    "title_canon_sha256": "827ac387fdd0dfdb416e748a19a4e4735cd221ad14384878889b386edff1ef45"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.03615",
    "kind": "arxiv",
    "version": 1
  }
}