Pith Number

pith:77CTOVKR

pith:2011:77CTOVKRMGDFL6VWBG7MD7T3NB

not attested not anchored not stored refs pending

On Wheeler's delayed-choice Gedankenexperiment and its laboratory realization

A. S. Sanz, L. Vuskovic, M. Bozic, M. Davidovic

arxiv:1101.1511 v4 · 2011-01-07 · quant-ph · physics.atom-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{77CTOVKRMGDFL6VWBG7MD7T3NB}

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	2026-05-18T02:22:59.980090Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ffc5375551618655fab609bec1fe7b684420bcfefac1d133d8eaf4615f0945af

Aliases

arxiv: 1101.1511 · arxiv_version: 1101.1511v4 · doi: 10.48550/arxiv.1101.1511 · pith_short_12: 77CTOVKRMGDF · pith_short_16: 77CTOVKRMGDFL6VW · pith_short_8: 77CTOVKR

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/77CTOVKRMGDFL6VWBG7MD7T3NB \
  | 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: ffc5375551618655fab609bec1fe7b684420bcfefac1d133d8eaf4615f0945af

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "902face3efa9b7710a61efad93d88c1df2bd89beb8fa2cced71fdca7c351ba4e",
    "cross_cats_sorted": [
      "physics.atom-ph",
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2011-01-07T19:41:53Z",
    "title_canon_sha256": "c653dfc309a0bd4381d10e6b3ec80da880e215f48e61c02d31312a2d176ffea0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.1511",
    "kind": "arxiv",
    "version": 4
  }
}