Pith Number

pith:2OUMV2AX

pith:1998:2OUMV2AXRV6QA4Q3XGWGJWKYVF

not attested not anchored not stored refs pending

"Interaction-Free" Imaging

(2) Universitaet Innsbruck), Andrew G. White (1), Jay R. Mitchell (1), Olaf Nairz (2), Paul G. Kwiat (1) ((1) Los Alamos National Laboratory

arxiv:quant-ph/9803060 v2 · 1998-03-23 · quant-ph · physics.ins-det · 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{2OUMV2AXRV6QA4Q3XGWGJWKYVF}

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.

Cited by

1 paper in Pith

Interaction-free measurement of multiple objects using a universal integrated photonic processor

Receipt and verification

First computed	2026-07-04T16:10:28.573053Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3a8cae8178d7d00721bb9ac64d958a951e56787f54d9d9a0c8afa12a015b7e5

Aliases

arxiv: quant-ph/9803060 · arxiv_version: quant-ph/9803060v2 · doi: 10.48550/arxiv.quant-ph/9803060 · pith_short_12: 2OUMV2AXRV6Q · pith_short_16: 2OUMV2AXRV6QA4Q3 · pith_short_8: 2OUMV2AX

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/2OUMV2AXRV6QA4Q3XGWGJWKYVF \
  | 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: d3a8cae8178d7d00721bb9ac64d958a951e56787f54d9d9a0c8afa12a015b7e5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f1b4d43a9a3b6be87422cf745fb941e2f8cdceac876b73e2ffa43e794cf65fcf",
    "cross_cats_sorted": [
      "physics.ins-det",
      "physics.optics"
    ],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "1998-03-23T01:57:52Z",
    "title_canon_sha256": "cda757e3c37ccaa4290a75cb5b9601702b77e6845caaa5dc58906c655483322f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/9803060",
    "kind": "arxiv",
    "version": 2
  }
}