Pith Number

pith:YYF2HI2A

pith:2007:YYF2HI2A6WHNKOBTOU3YSYYG7Q

not attested not anchored not stored refs pending

Fidelity enhancement by logical qubit encoding

Chandrasekhar Ramanathan, Colm A. Ryan, David G. Cory, Jonathan S. Hodges, Michael J. Ditty, Michael K. Henry, Raymond Laflamme

arxiv:0705.4119 v2 · 2007-05-28 · 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{YYF2HI2A6WHNKOBTOU3YSYYG7Q}

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	2026-07-04T17:03:59.721393Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c60ba3a340f58ed538337537896306fc3048927cc3b7cc6bba571a5be0214201

Aliases

arxiv: 0705.4119 · arxiv_version: 0705.4119v2 · doi: 10.48550/arxiv.0705.4119 · pith_short_12: YYF2HI2A6WHN · pith_short_16: YYF2HI2A6WHNKOBT · pith_short_8: YYF2HI2A

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/YYF2HI2A6WHNKOBTOU3YSYYG7Q \
  | 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: c60ba3a340f58ed538337537896306fc3048927cc3b7cc6bba571a5be0214201

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d0c3bfe01295e8b120277bb9d0c906a4fcf24b200460fc86405deafa89bc40a1",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2007-05-28T22:27:23Z",
    "title_canon_sha256": "2ef75c4cc7c52be71ef0bbbfd0ecaca5d7403dae52ea1712c627eafab9b4d662"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0705.4119",
    "kind": "arxiv",
    "version": 2
  }
}