Pith Number

pith:MQIHWKMB

pith:2016:MQIHWKMBEHPBMM6P4ZZ2A6Y2QQ

not attested not anchored not stored refs pending

Direct inversion from partial-boundary data in electrical impedance tomography

Andreas Hauptmann, Matteo Santacesaria, Samuli Siltanen

arxiv:1605.01309 v2 · 2016-05-04 · 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{MQIHWKMBEHPBMM6P4ZZ2A6Y2QQ}

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	2026-05-18T00:46:51.868195Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

64107b298121de1633cfe673a07b1a842fa6d1d26d74d84d6516751bccdefb24

Aliases

arxiv: 1605.01309 · arxiv_version: 1605.01309v2 · doi: 10.48550/arxiv.1605.01309 · pith_short_12: MQIHWKMBEHPB · pith_short_16: MQIHWKMBEHPBMM6P · pith_short_8: MQIHWKMB

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/MQIHWKMBEHPBMM6P4ZZ2A6Y2QQ \
  | 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: 64107b298121de1633cfe673a07b1a842fa6d1d26d74d84d6516751bccdefb24

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3270377b0bbd11685469668c0d9620494e9adb841281c44a846c8fd3a6f12760",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-05-04T15:15:24Z",
    "title_canon_sha256": "e094969704e1a93b5abff34e1853115b03ac747e3f236ebd9145a90ea78c6cfc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.01309",
    "kind": "arxiv",
    "version": 2
  }
}