Pith Number

pith:7X4VHJHX

pith:2011:7X4VHJHXQDQVKGKJE54IL23JLX

not attested not anchored not stored refs pending

Exploiting boundary states of imperfect spin chains for high-fidelity state transfer

D. Obreschkow, K. Franke, M. Bruderer, S. Ragg, W. Belzig

arxiv:1112.4503 v2 · 2011-12-19 · 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{7X4VHJHXQDQVKGKJE54IL23JLX}

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	2026-05-18T04:02:24.888771Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fdf953a4f780e1551949277885eb695dec859687260b6aef75cfa3289f97c422

Aliases

arxiv: 1112.4503 · arxiv_version: 1112.4503v2 · doi: 10.48550/arxiv.1112.4503 · pith_short_12: 7X4VHJHXQDQV · pith_short_16: 7X4VHJHXQDQVKGKJ · pith_short_8: 7X4VHJHX

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/7X4VHJHXQDQVKGKJE54IL23JLX \
  | 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: fdf953a4f780e1551949277885eb695dec859687260b6aef75cfa3289f97c422

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "749cecf28b8a34b87b22ed98d38bba6dcaee711d1caf962d1ef77ce4e327376b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2011-12-19T21:29:42Z",
    "title_canon_sha256": "1cd72433e192ea7a2e9dee335a101b54bc77bda256e9afc40c5875f607a0d2a8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.4503",
    "kind": "arxiv",
    "version": 2
  }
}