Pith Number

pith:5MMMT77Y

pith:2009:5MMMT77YKZHMWG6JIQ37SREQK5

not attested not anchored not stored refs pending

On Algorithms Based on Joint Estimation of Currents and Contrast in Microwave Tomography

Jean-Jacques Laurin, J\'er\^ome Idier, Paul-Andr\'e Barri\`ere, Yves Goussard

arxiv:0901.4723 v1 · 2009-01-29 · math.NA · cs.IT · cs.NA · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5MMMT77YKZHMWG6JIQ37SREQK5}

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	2026-06-03T23:06:10.718589Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eb18c9fff8564ecb1bc94437f944905769c0606f52408a5d19baa64b308561ce

Aliases

arxiv: 0901.4723 · arxiv_version: 0901.4723v1 · doi: 10.48550/arxiv.0901.4723 · pith_short_12: 5MMMT77YKZHM · pith_short_16: 5MMMT77YKZHMWG6J · pith_short_8: 5MMMT77Y

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/5MMMT77YKZHMWG6JIQ37SREQK5 \
  | 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: eb18c9fff8564ecb1bc94437f944905769c0606f52408a5d19baa64b308561ce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6798ac38b65127ae8d22a95a9feb8f9e47d12bc5bebdfdf746863406cc768309",
    "cross_cats_sorted": [
      "cs.IT",
      "cs.NA",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2009-01-29T17:03:35Z",
    "title_canon_sha256": "6a978360b08a71ecb92151140106aad056e6a077bf88565fcdce07cf4b12b49e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.4723",
    "kind": "arxiv",
    "version": 1
  }
}