Pith Number

pith:WV6R5F7V

pith:2019:WV6R5F7VW7BY7DSVZREAUYORFP

not attested not anchored not stored refs pending

Sparse reconstruction of log-conductivity in current density impedance tomography

Madhu Gupta, Rohit Kumar Mishra, Souvik Roy

arxiv:1903.11251 v3 · 2019-03-27 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WV6R5F7VW7BY7DSVZREAUYORFP}

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	2026-07-05T01:13:52.654994Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b57d1e97f5b7c38f8e55cc480a61d12be43b03db86fdf8a55cc11f56e1be6969

Aliases

arxiv: 1903.11251 · arxiv_version: 1903.11251v3 · doi: 10.48550/arxiv.1903.11251 · pith_short_12: WV6R5F7VW7BY · pith_short_16: WV6R5F7VW7BY7DSV · pith_short_8: WV6R5F7V

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/WV6R5F7VW7BY7DSVZREAUYORFP \
  | 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: b57d1e97f5b7c38f8e55cc480a61d12be43b03db86fdf8a55cc11f56e1be6969

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "de14908aba8a5219586717080b8c22747d8cf90d669ea30f4446b19fab02b71c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2019-03-27T05:14:36Z",
    "title_canon_sha256": "3489702e7bd914a177f9356d4fa79f7bb8bca52fe5312efb29aafbfed15a45b5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.11251",
    "kind": "arxiv",
    "version": 3
  }
}