Pith Number

pith:5G6344RH

pith:2005:5G6344RHSSQMGHLHA5734DWPY6

not attested not anchored not stored refs pending

A new approach to quantum backflow

Gebhard Gr\"ubl, Markus Penz, Peter Wagner, Sabine Kreidl

arxiv:quant-ph/0511109 v1 · 2005-11-11 · 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{5G6344RHSSQMGHLHA5734DWPY6}

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	2026-07-04T15:02:11.767176Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e9bdbe722794a0c31d67077fbe0ecfc79c3894d5fdf2b8b7ff42f430febec414

Aliases

arxiv: quant-ph/0511109 · arxiv_version: quant-ph/0511109v1 · doi: 10.48550/arxiv.quant-ph/0511109 · pith_short_12: 5G6344RHSSQM · pith_short_16: 5G6344RHSSQMGHLH · pith_short_8: 5G6344RH

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/5G6344RHSSQMGHLHA5734DWPY6 \
  | 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: e9bdbe722794a0c31d67077fbe0ecfc79c3894d5fdf2b8b7ff42f430febec414

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "946365736071632604b336fc59340c81321dbb746478d8542baac2a3f823c123",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2005-11-11T12:50:19Z",
    "title_canon_sha256": "93f0fffbc869d3eadbe5b01a976f80e6fa69cb57d523cd5d38752aa8c357e3d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0511109",
    "kind": "arxiv",
    "version": 1
  }
}