Pith Number

pith:RRQQG2EK

pith:2026:RRQQG2EKHRHYRAW3A7R3NSRU7K

not attested not anchored not stored refs pending

Roles of individual pigments in ultrafast excitation dynamics of light-harvesting phycobiliproteins revealed by recombinant techniques and two-dimensional electronic spectroscopy

Masaaki Tsubouchi, Motoyasu Adachi, Ryuji Itakura, Takatoshi Fujita

arxiv:2601.20259 v2 · 2026-01-28 · physics.bio-ph · physics.chem-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{RRQQG2EKHRHYRAW3A7R3NSRU7K}

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	2026-06-04T01:08:40.649632Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8c6103688a3c4f8882db07e3b6ca34faab4eb2021d0ebae5930db498ed43a86e

Aliases

arxiv: 2601.20259 · arxiv_version: 2601.20259v2 · doi: 10.48550/arxiv.2601.20259 · pith_short_12: RRQQG2EKHRHY · pith_short_16: RRQQG2EKHRHYRAW3 · pith_short_8: RRQQG2EK

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/RRQQG2EKHRHYRAW3A7R3NSRU7K \
  | 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: 8c6103688a3c4f8882db07e3b6ca34faab4eb2021d0ebae5930db498ed43a86e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "478f7b0c9ff545493aa25648dfcebb8b9eb204c00e4d18175ae2921876d0662f",
    "cross_cats_sorted": [
      "physics.chem-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.bio-ph",
    "submitted_at": "2026-01-28T05:13:54Z",
    "title_canon_sha256": "139eaa94f96d5078cef7f316da3d4c4d77f030d0bed0c7934c923c34fb4831a2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2601.20259",
    "kind": "arxiv",
    "version": 2
  }
}