Pith Number

pith:7WVTOZL4

pith:2013:7WVTOZL4CBVDH2MXYQD2B3D4C3

not attested not anchored not stored refs pending

The Calderon problem in transversally anisotropic geometries

David Dos Santos Ferreira, Matti Lassas, Mikko Salo, Yaroslav Kurylev

arxiv:1305.1273 v2 · 2013-05-06 · math.AP · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7WVTOZL4CBVDH2MXYQD2B3D4C3}

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	2026-05-18T02:52:12.673777Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fdab37657c106a33e997c407a0ec7c16c6399945eeb9b0f86367df2d7d0727d5

Aliases

arxiv: 1305.1273 · arxiv_version: 1305.1273v2 · doi: 10.48550/arxiv.1305.1273 · pith_short_12: 7WVTOZL4CBVD · pith_short_16: 7WVTOZL4CBVDH2MX · pith_short_8: 7WVTOZL4

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/7WVTOZL4CBVDH2MXYQD2B3D4C3 \
  | 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: fdab37657c106a33e997c407a0ec7c16c6399945eeb9b0f86367df2d7d0727d5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c3d1c3c7ec297905b75c4fa778bf1831fd8600e8ced79882e45701bbd8136bc2",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2013-05-06T18:40:56Z",
    "title_canon_sha256": "fdd2fa1c0b121cd6d580c78ca802dd688841d066589f515cf57a08050aae6301"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.1273",
    "kind": "arxiv",
    "version": 2
  }
}