Pith Number

pith:TFBZF2Y7

pith:2021:TFBZF2Y7XJCDCXWPGK2DHREBJ4

not attested not anchored not stored refs pending

Entanglement between superconducting qubits and a tardigrade

C. Hufnagel, K. H. Park, K. S. Lee, L. H. Nguyen, N. M{\o}bjerg, R. Dumke, R. P. Budoyo, T. Paterek, V. Vedral, Y. P. Tan, Y. S. Yap

arxiv:2112.07978 v2 · 2021-12-15 · quant-ph · physics.bio-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{TFBZF2Y7XJCDCXWPGK2DHREBJ4}

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	2026-07-05T05:27:16.727563Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

994392eb1fba44315ecf32b433c4814f07a342c24ee262ce4582f703015258ab

Aliases

arxiv: 2112.07978 · arxiv_version: 2112.07978v2 · doi: 10.48550/arxiv.2112.07978 · pith_short_12: TFBZF2Y7XJCD · pith_short_16: TFBZF2Y7XJCDCXWP · pith_short_8: TFBZF2Y7

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/TFBZF2Y7XJCDCXWPGK2DHREBJ4 \
  | 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: 994392eb1fba44315ecf32b433c4814f07a342c24ee262ce4582f703015258ab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dc58009235f611409427b22f33576eca93c36aacd9c03b42903bf1540cc712ab",
    "cross_cats_sorted": [
      "physics.bio-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2021-12-15T09:09:49Z",
    "title_canon_sha256": "db268b45abab4282d1e8359b8abe22c2ce93f2845f3fc9a8b28fbbca637ba312"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.07978",
    "kind": "arxiv",
    "version": 2
  }
}