Pith Number

pith:HFF2KB7J

pith:2019:HFF2KB7JQ2B4NU2ZKKGZYR6OY4

not attested not anchored not stored refs pending

Purification Hamiltonians

Arturo Z\'u\~niga-Segundo, H\'ector M. Moya-Cessa, Jorge A. Anaya-Contreras

arxiv:1903.05670 v1 · 2019-03-13 · 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{HFF2KB7JQ2B4NU2ZKKGZYR6OY4}

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	2026-05-17T23:51:16.618134Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

394ba507e98683c6d359528d9c47cec72af86181d4859c7c63c3fcfe5b2f403c

Aliases

arxiv: 1903.05670 · arxiv_version: 1903.05670v1 · doi: 10.48550/arxiv.1903.05670 · pith_short_12: HFF2KB7JQ2B4 · pith_short_16: HFF2KB7JQ2B4NU2Z · pith_short_8: HFF2KB7J

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/HFF2KB7JQ2B4NU2ZKKGZYR6OY4 \
  | 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: 394ba507e98683c6d359528d9c47cec72af86181d4859c7c63c3fcfe5b2f403c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "91366c76d209edf3217a76c6d9dda3dcce65b08424fde3039a006276d6a8dcb7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2019-03-13T18:38:27Z",
    "title_canon_sha256": "4afcc8bc2674af57675a5ced3e2acce55e62b5a17545c9d72366e87a77854dfa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.05670",
    "kind": "arxiv",
    "version": 1
  }
}