Pith Number

pith:X2AKEKPP

pith:2009:X2AKEKPPFWDVG4TWDGD5GEOXCF

not attested not anchored not stored refs pending

Quantum entanglement in photosynthetic light harvesting complexes

Akihito Ishizaki, Graham R. Fleming, K. Birgitta Whaley, Mohan Sarovar

arxiv:0905.3787 v2 · 2009-05-23 · quant-ph · physics.bio-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{X2AKEKPPFWDVG4TWDGD5GEOXCF}

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	2026-05-18T02:13:37.918758Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

be80a229ef2d875372761987d311d7114c823e75d160b14de77a69fd935a6b2c

Aliases

arxiv: 0905.3787 · arxiv_version: 0905.3787v2 · doi: 10.48550/arxiv.0905.3787 · pith_short_12: X2AKEKPPFWDV · pith_short_16: X2AKEKPPFWDVG4TW · pith_short_8: X2AKEKPP

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/X2AKEKPPFWDVG4TWDGD5GEOXCF \
  | 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: be80a229ef2d875372761987d311d7114c823e75d160b14de77a69fd935a6b2c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "33b558d2feb430b7fccbc68d34d70e296e77581e328a542af5886603d606ea3a",
    "cross_cats_sorted": [
      "physics.bio-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-05-23T04:14:56Z",
    "title_canon_sha256": "08a433a655108ec52943d7993a22a2a1a57680fa74ef96f0a2b11e871eb88572"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.3787",
    "kind": "arxiv",
    "version": 2
  }
}