Pith Number

pith:R7OO7TE2

pith:1999:R7OO7TE2LSCKV5AC6V2MK22P4W

not attested not anchored not stored refs pending

Protecting Quantum Information Encoded in Decoherence Free States Against Exchange Errors

Daniel A. Lidar, David Bacon, Julia Kempe, K. Birgitta Whaley

arxiv:quant-ph/9907096 v3 · 1999-07-29 · quant-ph · cond-mat

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{R7OO7TE2LSCKV5AC6V2MK22P4W}

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	2026-05-18T01:05:00.290333Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8fdcefcc9a5c84aaf402f574c56b4fe5a3103cfa70fffc0a34145720f612b046

Aliases

arxiv: quant-ph/9907096 · arxiv_version: quant-ph/9907096v3 · doi: 10.48550/arxiv.quant-ph/9907096 · pith_short_12: R7OO7TE2LSCK · pith_short_16: R7OO7TE2LSCKV5AC · pith_short_8: R7OO7TE2

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/R7OO7TE2LSCKV5AC6V2MK22P4W \
  | 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: 8fdcefcc9a5c84aaf402f574c56b4fe5a3103cfa70fffc0a34145720f612b046

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "713d17d46a390f5f2e297365e72260c35b520abf93e48db42d3693e352c08bed",
    "cross_cats_sorted": [
      "cond-mat"
    ],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "1999-07-29T19:51:14Z",
    "title_canon_sha256": "9d7dbb8fa505a641e89c2d62891721367c3e357be9e5b5822f0f3b364b37e100"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/9907096",
    "kind": "arxiv",
    "version": 3
  }
}