Pith Number

pith:35HVZYLX

pith:2025:35HVZYLXZYQHVCXQUXFEX6T6UC

not attested not anchored not stored refs pending

From free-evolution to tomographic representation

Eduardo Nahmad-Achar, Julio Aberto L\'opez-Sald\'ivar, Octavio Casta\~nos, Ram\'on L\'opez-Pe\~na, Sergio Cordero, Vladimir I. Man'ko

arxiv:2508.08456 v1 · 2025-08-11 · 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{35HVZYLXZYQHVCXQUXFEX6T6UC}

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	2026-07-05T11:52:28.775118Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

df4f5ce177ce207a8af0a5ca4bfa7ea0a4e5890ccf4a57fed18549229bc053a3

Aliases

arxiv: 2508.08456 · arxiv_version: 2508.08456v1 · doi: 10.48550/arxiv.2508.08456 · pith_short_12: 35HVZYLXZYQH · pith_short_16: 35HVZYLXZYQHVCXQ · pith_short_8: 35HVZYLX

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/35HVZYLXZYQHVCXQUXFEX6T6UC \
  | 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: df4f5ce177ce207a8af0a5ca4bfa7ea0a4e5890ccf4a57fed18549229bc053a3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "47e003f4905946c0e36ce331d0d0ab5cee7f4dfe60c8bb0cdef0f4948ce5d250",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2025-08-11T20:30:21Z",
    "title_canon_sha256": "69a806f20a4e594cd5fb6fb7e463aec75224bf5d0a74f8c5c36f3db61ffb6b0f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.08456",
    "kind": "arxiv",
    "version": 1
  }
}