Pith Number

pith:4WS2MSWN

pith:2007:4WS2MSWNQMX2KRQPMPHQTVI6GS

not attested not anchored not stored refs pending

Protection of entanglement from sudden death using continuous dynamical decoupling

F. F. Fanchini, R. d. J. Napolitano

arxiv:0707.4092 v2 · 2007-07-27 · 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{4WS2MSWNQMX2KRQPMPHQTVI6GS}

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	2026-05-18T02:16:29.076060Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e5a5a64acd832fa5460f63cf09d51e349f54198e4bb503a0ffcaa499ac6561f5

Aliases

arxiv: 0707.4092 · arxiv_version: 0707.4092v2 · doi: 10.48550/arxiv.0707.4092 · pith_short_12: 4WS2MSWNQMX2 · pith_short_16: 4WS2MSWNQMX2KRQP · pith_short_8: 4WS2MSWN

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/4WS2MSWNQMX2KRQPMPHQTVI6GS \
  | 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: e5a5a64acd832fa5460f63cf09d51e349f54198e4bb503a0ffcaa499ac6561f5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "97a035d75f01ee5ecc0f9bf3e9620b6a03b03036154e0eba4507d83f25aeb3e0",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2007-07-27T12:17:08Z",
    "title_canon_sha256": "5647f38005857861f7d4f5a961bf2c8ca173426a0cc70364a7db5270d9303016"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0707.4092",
    "kind": "arxiv",
    "version": 2
  }
}