Pith Number

pith:UCBPYIFM

pith:2021:UCBPYIFMPJFDAY2YUFBZ6JEZAP

not attested not anchored not stored refs pending

Optimal parent Hamiltonians for time-dependent states

Antonio Mezzacapo, Davide Rattacaso, Gianluca Passarelli, Procolo Lucignano, Rosario Fazio

arxiv:2105.10187 v1 · 2021-05-21 · 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{UCBPYIFMPJFDAY2YUFBZ6JEZAP}

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	2026-07-05T03:10:08.998291Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a082fc20ac7a4a306358a1439f249903f07beb418bc57aa6c5b57d58fdafff0c

Aliases

arxiv: 2105.10187 · arxiv_version: 2105.10187v1 · doi: 10.48550/arxiv.2105.10187 · pith_short_12: UCBPYIFMPJFD · pith_short_16: UCBPYIFMPJFDAY2Y · pith_short_8: UCBPYIFM

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/UCBPYIFMPJFDAY2YUFBZ6JEZAP \
  | 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: a082fc20ac7a4a306358a1439f249903f07beb418bc57aa6c5b57d58fdafff0c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1b2de33a68b32c6b307f83cd5d4bf1f85ecfdf93ac4133a8aff109dc9267614f",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2021-05-21T07:54:55Z",
    "title_canon_sha256": "69013c0ec892aacdb9c60b43a28a9e249c6c19bfa48c70afee4669bc0b186a89"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.10187",
    "kind": "arxiv",
    "version": 1
  }
}