Pith Number

pith:4CQUTVDR

pith:2026:4CQUTVDRRA2OR4O5ELS2DGM6KV

not attested not anchored not stored refs pending

Hyperspectral imaging solutions for brain tissue metabolic and haemodynamic monitoring: an updated perspective

Fr\'ed\'eric Lange, Ilias Tachtsidis, Luca Giannoni

arxiv:2603.21732 v1 · 2026-03-23 · physics.med-ph · physics.bio-ph · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4CQUTVDRRA2OR4O5ELS2DGM6KV}

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	2026-06-11T01:09:33.644565Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e0a149d4718834e8f1dd22e5a1999e5561cf4e9778efaeaa9aac7bba502f5dc0

Aliases

arxiv: 2603.21732 · arxiv_version: 2603.21732v1 · doi: 10.48550/arxiv.2603.21732 · pith_short_12: 4CQUTVDRRA2O · pith_short_16: 4CQUTVDRRA2OR4O5 · pith_short_8: 4CQUTVDR

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/4CQUTVDRRA2OR4O5ELS2DGM6KV \
  | 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: e0a149d4718834e8f1dd22e5a1999e5561cf4e9778efaeaa9aac7bba502f5dc0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "03a4e449d8decf5171d024193eece647cd969d2cc88dd69289ab159c99acf0f3",
    "cross_cats_sorted": [
      "physics.bio-ph",
      "physics.optics"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.med-ph",
    "submitted_at": "2026-03-23T09:21:11Z",
    "title_canon_sha256": "dd9f947ef7cbff904cb727b85a3dd081c2f8c172b89d347623785255bce2e1bc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2603.21732",
    "kind": "arxiv",
    "version": 1
  }
}