Pith Number

pith:U7YBI2IB

pith:2012:U7YBI2IBIXGSGVOIVPVZGMIOMB

not attested not anchored not stored refs pending

Computational ghost imaging versus imaging laser radar for 3D imaging

Jeffrey H. Shapiro, Nicholas D. Hardy

arxiv:1212.3253 v2 · 2012-12-13 · 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{U7YBI2IBIXGSGVOIVPVZGMIOMB}

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	2026-05-18T01:52:38.681902Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a7f014690145cd2355c8abeb93310e60537eaf7c4469e16795a853deb1d91ff1

Aliases

arxiv: 1212.3253 · arxiv_version: 1212.3253v2 · doi: 10.48550/arxiv.1212.3253 · pith_short_12: U7YBI2IBIXGS · pith_short_16: U7YBI2IBIXGSGVOI · pith_short_8: U7YBI2IB

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/U7YBI2IBIXGSGVOIVPVZGMIOMB \
  | 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: a7f014690145cd2355c8abeb93310e60537eaf7c4469e16795a853deb1d91ff1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "84e58621dbae3fa7391a441b1f6fe57f8bc320985a9c8631656aaa17d22a5da7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2012-12-13T18:24:40Z",
    "title_canon_sha256": "80b6376690def5363f8fdc8529c0f36484e4f429c38115edbf5a6704cca16300"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.3253",
    "kind": "arxiv",
    "version": 2
  }
}