Pith Number

pith:R4AWQM4R

pith:2021:R4AWQM4RZBWALDUFOJORPKP3S3

not attested not anchored not stored refs pending

Climbing the Fock ladder: Advancing multiphoton state generation

B. Brecht, C. Silberhorn, I. Dhand, J. Sperling, J. Tiedau, M. B. Plenio, M. Engelkemeier, S. Barkhofen

arxiv:2105.03720 v1 · 2021-05-08 · 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{R4AWQM4RZBWALDUFOJORPKP3S3}

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	2026-07-05T02:38:38.346582Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f01683391c86c058e85725d17a9fb96d761687dac6b7c4a4b3d4b38e50c1b2c

Aliases

arxiv: 2105.03720 · arxiv_version: 2105.03720v1 · doi: 10.48550/arxiv.2105.03720 · pith_short_12: R4AWQM4RZBWA · pith_short_16: R4AWQM4RZBWALDUF · pith_short_8: R4AWQM4R

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/R4AWQM4RZBWALDUFOJORPKP3S3 \
  | 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: 8f01683391c86c058e85725d17a9fb96d761687dac6b7c4a4b3d4b38e50c1b2c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "328dce937beceb1154eae699716ad8b75cc9de93fe7ded2b8fbc1a92aabe261c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2021-05-08T15:38:56Z",
    "title_canon_sha256": "cf9b8fa1e7a43dc3178fc8726c21b8bc30458b749c3559c27442627d6f96b5d3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.03720",
    "kind": "arxiv",
    "version": 1
  }
}