Pith Number

pith:EKA6YJCX

pith:2022:EKA6YJCXL7SJAGF7IIQDAKRS2L

not attested not anchored not stored refs pending

Robust millisecond coherence times of erbium electron spins

Haitao Zhang, Jun Yang, Shobhit Gupta, Tian Zhong, Xuntao Wu

arxiv:2207.02708 v1 · 2022-07-06 · 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{EKA6YJCXL7SJAGF7IIQDAKRS2L}

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	2026-07-05T07:00:19.115163Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2281ec24575fe49018bf4220302a32d2c3c9e2a6ee11416a8c2c1d2e48c6d0a9

Aliases

arxiv: 2207.02708 · arxiv_version: 2207.02708v1 · doi: 10.48550/arxiv.2207.02708 · pith_short_12: EKA6YJCXL7SJ · pith_short_16: EKA6YJCXL7SJAGF7 · pith_short_8: EKA6YJCX

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/EKA6YJCXL7SJAGF7IIQDAKRS2L \
  | 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: 2281ec24575fe49018bf4220302a32d2c3c9e2a6ee11416a8c2c1d2e48c6d0a9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2a732e90305bd77d6260b10867c45cdc3804cf7335349905d4bbe1f9c7706093",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2022-07-06T14:29:11Z",
    "title_canon_sha256": "1ca4886de453773cb228bc9ae7a6ede9f4f3f7be584bedfad4525d6dc8c68b20"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2207.02708",
    "kind": "arxiv",
    "version": 1
  }
}