Pith Number

pith:FDT6O2CC

pith:2025:FDT6O2CCNZAJOJFRCBCSFUY5MH

not attested not anchored not stored refs pending

Searching for a physical description relative to a quantum system

Henrique A. R. Knopki, Renato M. Angelo

arxiv:2509.04186 v1 · 2025-09-04 · 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{FDT6O2CCNZAJOJFRCBCSFUY5MH}

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	2026-07-05T12:04:55.008561Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

28e7e768426e409724b1104522d31d61dd4a33a13c78e2f8bdb70a57159ff9fb

Aliases

arxiv: 2509.04186 · arxiv_version: 2509.04186v1 · doi: 10.48550/arxiv.2509.04186 · pith_short_12: FDT6O2CCNZAJ · pith_short_16: FDT6O2CCNZAJOJFR · pith_short_8: FDT6O2CC

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/FDT6O2CCNZAJOJFRCBCSFUY5MH \
  | 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: 28e7e768426e409724b1104522d31d61dd4a33a13c78e2f8bdb70a57159ff9fb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8024b32432729935cad69a0b759af7393d8d6823e80a7fb51b48b334aab18dc3",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2025-09-04T13:03:37Z",
    "title_canon_sha256": "971191df32fb4e9204e491419275ec03b3ec6fd0e6ae2a21580ca9fe3ea82b02"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2509.04186",
    "kind": "arxiv",
    "version": 1
  }
}