Pith Number

pith:ELCEVHZD

pith:2015:ELCEVHZD6RCYBFBUBGZLXP6SDH

not attested not anchored not stored refs pending

On reconstruction of complex-valued once differentiable conductivities

Boris Vainberg, Evgeny Lakshtanov

arxiv:1511.08780 v4 · 2015-11-27 · math-ph · math.AP · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ELCEVHZD6RCYBFBUBGZLXP6SDH}

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	2026-05-18T00:33:07.336792Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

22c44a9f23f44580943409b2bbbfd219f5450efb05b0cc022ff50e062465b7bb

Aliases

arxiv: 1511.08780 · arxiv_version: 1511.08780v4 · doi: 10.48550/arxiv.1511.08780 · pith_short_12: ELCEVHZD6RCY · pith_short_16: ELCEVHZD6RCYBFBU · pith_short_8: ELCEVHZD

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/ELCEVHZD6RCYBFBUBGZLXP6SDH \
  | 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: 22c44a9f23f44580943409b2bbbfd219f5450efb05b0cc022ff50e062465b7bb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d10e2d5cbc9a151613a54d144b72cfabbd864d3ea995121b8d579dceefe0f31e",
    "cross_cats_sorted": [
      "math.AP",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2015-11-27T20:03:26Z",
    "title_canon_sha256": "5a247a83bf7ba68b55768be965f092d6d5dab0b41ddbd2aa20785fe8dc52c773"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.08780",
    "kind": "arxiv",
    "version": 4
  }
}