Pith Number

pith:BD6OQIQK

pith:2012:BD6OQIQKEOSDCYNT5G75IPFXG6

not attested not anchored not stored refs pending

An excitation-dependent four-level model for quantum entanglement in photosynthetic systems

Agata M. Branczyk, Chi-Han Chang, Daniel F. V. James, Gregory D. Scholes

arxiv:1202.3439 v1 · 2012-02-15 · 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{BD6OQIQKEOSDCYNT5G75IPFXG6}

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	2026-05-18T04:02:13.136823Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

08fce8220a23a43161b3e9bfd43cb737ab1c062fcd82804b9f673f9a10ed9f03

Aliases

arxiv: 1202.3439 · arxiv_version: 1202.3439v1 · doi: 10.48550/arxiv.1202.3439 · pith_short_12: BD6OQIQKEOSD · pith_short_16: BD6OQIQKEOSDCYNT · pith_short_8: BD6OQIQK

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/BD6OQIQKEOSDCYNT5G75IPFXG6 \
  | 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: 08fce8220a23a43161b3e9bfd43cb737ab1c062fcd82804b9f673f9a10ed9f03

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "31131b3e4be073b01398a48db52ddef0b096bc527339a5fec6d3273a0fea2d79",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-02-15T21:00:06Z",
    "title_canon_sha256": "1f957f2cd6fd8126f7d4f8b0c0d09562900c06168ce111e461c251dd706023a7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.3439",
    "kind": "arxiv",
    "version": 1
  }
}