Pith Number

pith:T7U7YPYG

pith:2019:T7U7YPYGFXYEEBVW25YCF4OGIF

not attested not anchored not stored refs pending

Photoacoustics can image spreading depolarization deep in gyrencephalic brain

Adri\'an Hern\'andez-Aguilera, Edgar Santos, Janek Gr\"ohl, Lena Maier-Hein, Mildred Herrera, Thomas Kirchner, Tim Adler

arxiv:1901.02786 v2 · 2019-01-09 · physics.med-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{T7U7YPYGFXYEEBVW25YCF4OGIF}

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	2026-05-17T23:56:27.251429Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9fe9fc3f062df04206b6d77022f1c64141692d27f42c95286579a9e336b7faa8

Aliases

arxiv: 1901.02786 · arxiv_version: 1901.02786v2 · doi: 10.48550/arxiv.1901.02786 · pith_short_12: T7U7YPYGFXYE · pith_short_16: T7U7YPYGFXYEEBVW · pith_short_8: T7U7YPYG

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/T7U7YPYGFXYEEBVW25YCF4OGIF \
  | 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: 9fe9fc3f062df04206b6d77022f1c64141692d27f42c95286579a9e336b7faa8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "253df93bfd83f959fb2ab37a8b368475d87b5b754318dc0357d6e0b0afad183c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.med-ph",
    "submitted_at": "2019-01-09T15:45:40Z",
    "title_canon_sha256": "7d9c4b57916999fa0c9114c9a68e00d39f04de46a8b3463db774abd93eeed041"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.02786",
    "kind": "arxiv",
    "version": 2
  }
}