Pith Number

pith:2QTPJW2H

pith:2026:2QTPJW2HQOUIMYYAX6XYKIOHAB

not attested not anchored not stored refs pending

Revisiting claims of extracranial biophoton detection from the human brain

Christoph Simon, Daniel Oblak, Rishabh Rishabh, Vahid Salari, Vishnu Seshan

arxiv:2603.26630 v2 · 2026-03-27 · physics.bio-ph · physics.optics · q-bio.NC

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2QTPJW2HQOUIMYYAX6XYKIOHAB}

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	2026-05-28T01:04:38.993841Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d426f4db4783a8866300bfaf8521c700661c6c6aa62f17be091e7a42fafc57db

Aliases

arxiv: 2603.26630 · arxiv_version: 2603.26630v2 · doi: 10.48550/arxiv.2603.26630 · pith_short_12: 2QTPJW2HQOUI · pith_short_16: 2QTPJW2HQOUIMYYA · pith_short_8: 2QTPJW2H

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/2QTPJW2HQOUIMYYAX6XYKIOHAB \
  | 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: d426f4db4783a8866300bfaf8521c700661c6c6aa62f17be091e7a42fafc57db

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "524f3bc0ab9a171e07ae9c74985c5ba6f3765d9f4b19b0302d6bfd2cbc2d187c",
    "cross_cats_sorted": [
      "physics.optics",
      "q-bio.NC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.bio-ph",
    "submitted_at": "2026-03-27T17:29:20Z",
    "title_canon_sha256": "be33e0143b0dfddf0ef84f6b2059eb94c746a3fd67da98081a7656e507df5a2f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2603.26630",
    "kind": "arxiv",
    "version": 2
  }
}