Pith Number

pith:IV6ZPTBM

pith:2006:IV6ZPTBMUQF5CLPYWP33LWSZMY

not attested not anchored not stored refs pending

The inverse conductivity problem with an imperfectly known boundary in three dimensions

Matti Lassas, Petri Ola, Ville Kolehmainen

arxiv:math/0606640 v1 · 2006-06-26 · 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{IV6ZPTBMUQF5CLPYWP33LWSZMY}

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	2026-05-18T01:05:22.637706Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

457d97cc2ca40bd12df8b3f7b5da59662f5a3de26789bda061f4748233d7fb58

Aliases

arxiv: math/0606640 · arxiv_version: math/0606640v1 · doi: 10.48550/arxiv.math/0606640 · pith_short_12: IV6ZPTBMUQF5 · pith_short_16: IV6ZPTBMUQF5CLPY · pith_short_8: IV6ZPTBM

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/IV6ZPTBMUQF5CLPYWP33LWSZMY \
  | 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: 457d97cc2ca40bd12df8b3f7b5da59662f5a3de26789bda061f4748233d7fb58

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e31a4262a82e248897140c517873593199d651cc0d02ee09a143983ed5212bb5",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.AP",
    "submitted_at": "2006-06-26T10:30:28Z",
    "title_canon_sha256": "d0a8803f6325cad92ec5a15990b18d17036f8f4b8c3484fb6c7bb8e1e71fefb4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0606640",
    "kind": "arxiv",
    "version": 1
  }
}