Pith Number

pith:3JAN6NHV

pith:2011:3JAN6NHVOBLJGCIHL6UX3J7CNF

not attested not anchored not stored refs pending

Reconstructing conductivities with boundary corrected D-bar method

Janne P. Tamminen, Samuli Siltanen

arxiv:1109.5982 v1 · 2011-09-27 · 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{3JAN6NHVOBLJGCIHL6UX3J7CNF}

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	2026-05-18T04:12:10.910866Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

da40df34f570569309075fa97da7e26961df076a364dd917b3a95508f6feca0a

Aliases

arxiv: 1109.5982 · arxiv_version: 1109.5982v1 · doi: 10.48550/arxiv.1109.5982 · pith_short_12: 3JAN6NHVOBLJ · pith_short_16: 3JAN6NHVOBLJGCIH · pith_short_8: 3JAN6NHV

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/3JAN6NHVOBLJGCIHL6UX3J7CNF \
  | 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: da40df34f570569309075fa97da7e26961df076a364dd917b3a95508f6feca0a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f8d7a5b5fdb77b71dc256d3ed759a1ca9aa9cec840eeb1967b00059c977c9400",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2011-09-27T18:12:06Z",
    "title_canon_sha256": "5408e52806d93ec688133dbf1d5e7361031e03159981f5ebfa3b33ca45ebe29a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.5982",
    "kind": "arxiv",
    "version": 1
  }
}