Pith Number

pith:ON4KCDL3

pith:2012:ON4KCDL3X7R3MIRNAMLUMPTFQI

not attested not anchored not stored refs pending

Undoing a quantum measurement

Daniel Nigg, Esteban A. Martinez, Julio T. Barreiro, Markus Hennrich, Matthias F. Brandl, Michael Chwalla, Philipp Schindler, Rainer Blatt, Thomas Monz

arxiv:1211.1791 v1 · 2012-11-08 · 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{ON4KCDL3X7R3MIRNAMLUMPTFQI}

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	2026-05-18T01:53:18.159073Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7378a10d7bbfe3b6222d0317463e65822ee458c596ac00e09979e641e1dc1d72

Aliases

arxiv: 1211.1791 · arxiv_version: 1211.1791v1 · doi: 10.48550/arxiv.1211.1791 · pith_short_12: ON4KCDL3X7R3 · pith_short_16: ON4KCDL3X7R3MIRN · pith_short_8: ON4KCDL3

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/ON4KCDL3X7R3MIRNAMLUMPTFQI \
  | 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: 7378a10d7bbfe3b6222d0317463e65822ee458c596ac00e09979e641e1dc1d72

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "896b85541a1642088d137ea5cf06e699daf810cd0749b4349cd5bded5ca11895",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-11-08T08:34:18Z",
    "title_canon_sha256": "3947db8e270ec7cfa9d32385f1a501281f965fa388611b4f2584028fd7afdc18"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.1791",
    "kind": "arxiv",
    "version": 1
  }
}