Pith Number

pith:2KEQH3JH

pith:2026:2KEQH3JHZLM7556TZADAINCQ66

not attested not anchored not stored refs pending

Attosecond delay metrology beyond the photon coherence time with spectrally resolved Hong-Ou-Mandel interferometry

Benjamin Sussman, Duncan England, Ebrahim Karimi, Kyle Jordan, Vincenzo Tamma, Yingwen Zhang

arxiv:2607.16849 v1 · 2026-07-18 · quant-ph · physics.optics

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2KEQH3JHZLM7556TZADAINCQ66}

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	2026-07-21T01:21:02.123167Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d28903ed27cad9fef7d3c806043450f7872a99ca644e6709e28a455f674c9c10

Aliases

arxiv: 2607.16849 · arxiv_version: 2607.16849v1 · doi: 10.48550/arxiv.2607.16849 · pith_short_12: 2KEQH3JHZLM7 · pith_short_16: 2KEQH3JHZLM7556T · pith_short_8: 2KEQH3JH

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/2KEQH3JHZLM7556TZADAINCQ66 \
  | 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: d28903ed27cad9fef7d3c806043450f7872a99ca644e6709e28a455f674c9c10

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2ee99e2471e7295b1e5e401d6a297f12da4752a497ff4e3b2fac3b36de5eb6c8",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-07-18T15:12:49Z",
    "title_canon_sha256": "a64c13d6c954e9b675fe207aaff84d9805885361ab8805fd7a736db516b66e74"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.16849",
    "kind": "arxiv",
    "version": 1
  }
}