Pith Number

pith:GVTMMSDK

pith:2016:GVTMMSDKWPDDXRJFLITFJAKXX4

not attested not anchored not stored refs pending

Experimental investigation of Popper's proposed ghost-diffraction experiment

Ebrahim Karimi, Eliot Bolduc, Jonathan Leach, Kevin Pich\'e, Robert W. Boyd

arxiv:1612.06826 v1 · 2016-12-20 · quant-ph · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GVTMMSDKWPDDXRJFLITFJAKXX4}

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	2026-05-18T00:35:24.120987Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3566c6486ab3c63bc5255a26548157bf0efc9d1903f3f5626caa1de3a4afa12a

Aliases

arxiv: 1612.06826 · arxiv_version: 1612.06826v1 · doi: 10.48550/arxiv.1612.06826 · pith_short_12: GVTMMSDKWPDD · pith_short_16: GVTMMSDKWPDDXRJF · pith_short_8: GVTMMSDK

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/GVTMMSDKWPDDXRJFLITFJAKXX4 \
  | 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: 3566c6486ab3c63bc5255a26548157bf0efc9d1903f3f5626caa1de3a4afa12a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e4ace6080b143d32406e689be8c0cf5a73958048adaeb14c11620958a869341e",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2016-12-20T20:02:52Z",
    "title_canon_sha256": "ec001cd6da9f3b1a5877fb57e6de799ba667fa3dc1cfebeb1b542b5ef704f46e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.06826",
    "kind": "arxiv",
    "version": 1
  }
}