Pith Number

pith:MRPRKBVN

pith:2020:MRPRKBVN7YDH3YNON4BFTRAKZU

not attested not anchored not stored refs pending

Counter-propagating photon pair generation in a nonlinear waveguide

Christine Silberhorn, Christof Eigner, Harald Herrmann, Kai-Hong Luo, Marcello Massaro, Matteo Santandrea, Raimund Ricken, Vahid Ansari

arxiv:2001.10418 v1 · 2020-01-28 · 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{MRPRKBVN7YDH3YNON4BFTRAKZU}

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	2026-07-05T00:36:52.488971Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

645f1506adfe067de1ae6f0259c40acd2f303be860ca6f7ab3a53ec40ac4b176

Aliases

arxiv: 2001.10418 · arxiv_version: 2001.10418v1 · doi: 10.48550/arxiv.2001.10418 · pith_short_12: MRPRKBVN7YDH · pith_short_16: MRPRKBVN7YDH3YNO · pith_short_8: MRPRKBVN

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/MRPRKBVN7YDH3YNON4BFTRAKZU \
  | 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: 645f1506adfe067de1ae6f0259c40acd2f303be860ca6f7ab3a53ec40ac4b176

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f6a28e0a93e04334cab2b5095d05aefe07a9d17830afb7ae88e8f33c2536f632",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2020-01-28T15:43:42Z",
    "title_canon_sha256": "ed1343bb5fe6e635459854f49206fda59da7ebe8aa114a0cd5afa7dd40c07b35"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2001.10418",
    "kind": "arxiv",
    "version": 1
  }
}