Pith Number

pith:D7ZHBKE6

pith:2018:D7ZHBKE6SZDA5JJJYDLRTC2LR2

not attested not anchored not stored refs pending

A direct linear inversion for discontinuous elastic parameters recovery from internal displacement information only

Elie Bretin, Habib Ammari, Laurent Seppecher, Pierre Millien

arxiv:1806.03147 v1 · 2018-06-08 · math.AP · 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{D7ZHBKE6SZDA5JJJYDLRTC2LR2}

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	2026-05-18T00:13:49.490838Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ff270a89e96460ea529c0d7198b4b8eb0a8014eefa5a28c5fc853eca0dcaef9

Aliases

arxiv: 1806.03147 · arxiv_version: 1806.03147v1 · doi: 10.48550/arxiv.1806.03147 · pith_short_12: D7ZHBKE6SZDA · pith_short_16: D7ZHBKE6SZDA5JJJ · pith_short_8: D7ZHBKE6

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/D7ZHBKE6SZDA5JJJYDLRTC2LR2 \
  | 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: 1ff270a89e96460ea529c0d7198b4b8eb0a8014eefa5a28c5fc853eca0dcaef9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "af078caddab635a6396b1f506dfbcf3e8e375221f1db6a05261a48d275fd06a0",
    "cross_cats_sorted": [
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2018-06-08T13:36:45Z",
    "title_canon_sha256": "41c70bd960bac4a3f2b5da60ce4a179efeb9e4e032d5aec9c2074d8fa55799e1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.03147",
    "kind": "arxiv",
    "version": 1
  }
}