Pith Number

pith:REAPWICJ

pith:2018:REAPWICJM4SXJPHOM5UTHKSSWC

not attested not anchored not stored refs pending

Combining frequency-difference and ultrasound modulated electrical impedance tomography

Bastian Harrach, Eunjung Lee, Marcel Ullrich

arxiv:1810.04392 v1 · 2018-10-10 · math.AP · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{REAPWICJM4SXJPHOM5UTHKSSWC}

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	2026-05-18T00:03:40.251556Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8900fb2049672574bcee676933aa52b0a999a945dc3863f439a39faa994744ad

Aliases

arxiv: 1810.04392 · arxiv_version: 1810.04392v1 · doi: 10.48550/arxiv.1810.04392 · pith_short_12: REAPWICJM4SX · pith_short_16: REAPWICJM4SXJPHO · pith_short_8: REAPWICJ

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/REAPWICJM4SXJPHOM5UTHKSSWC \
  | 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: 8900fb2049672574bcee676933aa52b0a999a945dc3863f439a39faa994744ad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b4a17a702e5ce9a52f93916e6c0c17030ea5688381da716b9940bc8d0ae7070d",
    "cross_cats_sorted": [
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2018-10-10T07:16:38Z",
    "title_canon_sha256": "08c8d7f2f0c53bc26ad80840d2d818b6e1e27d96dcdfac19db7007cb8346bdda"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.04392",
    "kind": "arxiv",
    "version": 1
  }
}