Pith Number

pith:KEWPHQKI

pith:2015:KEWPHQKIEXBQGV36I5SZMSVYZI

not attested not anchored not stored refs pending

Squeezing with classical Hamiltonians

Tom\'a\v{s} Opatrn\'y

arxiv:1508.04553 v1 · 2015-08-19 · 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{KEWPHQKIEXBQGV36I5SZMSVYZI}

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	2026-05-18T01:31:31.396201Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

512cf3c14825c303577e4765964ab8ca223d1aafc821db9902c379db2c1caaeb

Aliases

arxiv: 1508.04553 · arxiv_version: 1508.04553v1 · doi: 10.48550/arxiv.1508.04553 · pith_short_12: KEWPHQKIEXBQ · pith_short_16: KEWPHQKIEXBQGV36 · pith_short_8: KEWPHQKI

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/KEWPHQKIEXBQGV36I5SZMSVYZI \
  | 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: 512cf3c14825c303577e4765964ab8ca223d1aafc821db9902c379db2c1caaeb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fa4b1bddfc7e188b9c5bf9f5b8d7218543914dd283984c3f666449f14cc5867e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-08-19T07:49:08Z",
    "title_canon_sha256": "3d95c508a950e0af1770e438b036a1b8a80fd224a76d087771d20f89341f9287"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.04553",
    "kind": "arxiv",
    "version": 1
  }
}