Pith Number

pith:4V2GWDR5

pith:2015:4V2GWDR5WZ7WTDAKSE4A6AJDIN

not attested not anchored not stored refs pending

A weighted minimum gradient problem with complete electrode model boundary conditions for conductivity imaging

Adrian Nachman, Alexandru Tamasan, Johann Veras

arxiv:1502.04731 v2 · 2015-02-16 · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4V2GWDR5WZ7WTDAKSE4A6AJDIN}

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	2026-05-18T01:15:32.649979Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e5746b0e3db67f698c0a91380f0123436b3050f9c1bc4be495300fbf2df43c91

Aliases

arxiv: 1502.04731 · arxiv_version: 1502.04731v2 · doi: 10.48550/arxiv.1502.04731 · pith_short_12: 4V2GWDR5WZ7W · pith_short_16: 4V2GWDR5WZ7WTDAK · pith_short_8: 4V2GWDR5

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/4V2GWDR5WZ7WTDAKSE4A6AJDIN \
  | 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: e5746b0e3db67f698c0a91380f0123436b3050f9c1bc4be495300fbf2df43c91

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "08a51343bcf77b2baab2a16b7cbb3c312872c2edf2541560adc499f6779a397d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2015-02-16T21:27:38Z",
    "title_canon_sha256": "91c9058943a9cd519794d1e242f6c7d8ee1105ec6ff0bcf75fd693a656e7441d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.04731",
    "kind": "arxiv",
    "version": 2
  }
}