Pith Number

pith:P2U6PCFH

pith:2016:P2U6PCFHXWHGG4QLNYRRTQQP6V

not attested not anchored not stored refs pending

Subnatural-linewidth biphotons from a Doppler-broadened hot atomic vapor cell

Chi Shu, Lingbang Zhu, M. M. T. Loy, Peng Chen, Shengwang Du, Tsz Kiu Aaron Chow, Yanhong Xiao

arxiv:1602.08561 v1 · 2016-02-27 · 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{P2U6PCFHXWHGG4QLNYRRTQQP6V}

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	2026-05-18T01:03:40.772436Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ea9e788a7bd8e63720b6e2319c20ff54b418be0845b56d6442e9b749c547eeb

Aliases

arxiv: 1602.08561 · arxiv_version: 1602.08561v1 · doi: 10.48550/arxiv.1602.08561 · pith_short_12: P2U6PCFHXWHG · pith_short_16: P2U6PCFHXWHGG4QL · pith_short_8: P2U6PCFH

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/P2U6PCFHXWHGG4QLNYRRTQQP6V \
  | 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: 7ea9e788a7bd8e63720b6e2319c20ff54b418be0845b56d6442e9b749c547eeb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a2e0c3751f4593e0c7b839c2710b6291fb597dcb65aafcb7d2921a06b2cb0ed9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2016-02-27T07:06:40Z",
    "title_canon_sha256": "800df585535cc545db39e1a47a99a6dd212f459493d31427f89b0904cf86c509"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.08561",
    "kind": "arxiv",
    "version": 1
  }
}