Pith Number

pith:7M6HVPNM

pith:2011:7M6HVPNMWRG52RPORJQN7WD2GK

not attested not anchored not stored refs pending

The sudden birth and sudden death of thermal fidelity in a two-qubit XY model

Hong-Biao Zhang, Li-Guo Qin, Li-Jun Tian, Ying Jiang

arxiv:1101.2128 v2 · 2011-01-11 · 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{7M6HVPNMWRG52RPORJQN7WD2GK}

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	2026-05-18T04:23:21.067891Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fb3c7abdacb44ddd45ee8a60dfd87a32bb6530bdb415f7076058dadd601387e6

Aliases

arxiv: 1101.2128 · arxiv_version: 1101.2128v2 · doi: 10.48550/arxiv.1101.2128 · pith_short_12: 7M6HVPNMWRG5 · pith_short_16: 7M6HVPNMWRG52RPO · pith_short_8: 7M6HVPNM

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/7M6HVPNMWRG52RPORJQN7WD2GK \
  | 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: fb3c7abdacb44ddd45ee8a60dfd87a32bb6530bdb415f7076058dadd601387e6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e5710f2ecbe9b9029bb99117eeb58dd3822e5320e01e5c737c2a5b93c3aa1f4",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2011-01-11T14:01:46Z",
    "title_canon_sha256": "da04c048f576df7e928f6b4771b086871bf5b68273495a5f1800ed80eb367f28"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.2128",
    "kind": "arxiv",
    "version": 2
  }
}