Pith Number

pith:7VTNDWUQ

pith:2004:7VTNDWUQSDSA7TR77C7QBTGYCK

not attested not anchored not stored refs pending

Towards a time-reversal mirror for quantum systems

Ernesto P. Danieli, Hernan L. Calvo, Horacio M. Pastawski, Luis E. F. Foa Torres

arxiv:quant-ph/0403130 v3 · 2004-03-17 · quant-ph · cond-mat.mes-hall

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7VTNDWUQSDSA7TR77C7QBTGYCK}

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	2026-05-18T01:19:06.671779Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd66d1da9090e40fce3ff8bf00ccd812a3640a4f54defab5a6e5075d515aa62e

Aliases

arxiv: quant-ph/0403130 · arxiv_version: quant-ph/0403130v3 · doi: 10.48550/arxiv.quant-ph/0403130 · pith_short_12: 7VTNDWUQSDSA · pith_short_16: 7VTNDWUQSDSA7TR7 · pith_short_8: 7VTNDWUQ

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/7VTNDWUQSDSA7TR77C7QBTGYCK \
  | 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: fd66d1da9090e40fce3ff8bf00ccd812a3640a4f54defab5a6e5075d515aa62e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2de307907eb30a8f834430662c0986c8063e583f3562129b5a7584917af37523",
    "cross_cats_sorted": [
      "cond-mat.mes-hall"
    ],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2004-03-17T23:33:23Z",
    "title_canon_sha256": "e261274f52a9407309a069dd8af04f0410a06b946e030f01e918e4267b02eac5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0403130",
    "kind": "arxiv",
    "version": 3
  }
}