Pith Number

pith:HK3QH7TZ

pith:2019:HK3QH7TZ6KYNPCQLGUBCFMUFOU

not attested not anchored not stored refs pending

Photoacoustic monitoring of blood oxygenation during neurosurgical interventions

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

arxiv:1904.11809 v1 · 2019-04-26 · 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{HK3QH7TZ6KYNPCQLGUBCFMUFOU}

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	2026-05-17T23:47:40.865794Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3ab703fe79f2b0d78a0b350222b285751dd4cd59217b8cff8c1fd745104ada28

Aliases

arxiv: 1904.11809 · arxiv_version: 1904.11809v1 · doi: 10.48550/arxiv.1904.11809 · pith_short_12: HK3QH7TZ6KYN · pith_short_16: HK3QH7TZ6KYNPCQL · pith_short_8: HK3QH7TZ

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/HK3QH7TZ6KYNPCQLGUBCFMUFOU \
  | 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: 3ab703fe79f2b0d78a0b350222b285751dd4cd59217b8cff8c1fd745104ada28

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "05f8b44a2516495537f90570fe78f3383f339793621a407667b319f8cfe33ef8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.med-ph",
    "submitted_at": "2019-04-26T12:47:43Z",
    "title_canon_sha256": "28c9c141cf41e1783012cf7bc3c585849b2e7e1b4c836921d027f6df2e9290be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.11809",
    "kind": "arxiv",
    "version": 1
  }
}