Pith Number

pith:K3BDGWPF

pith:2017:K3BDGWPFSCBTCM7H6OC2FPIKR5

not attested not anchored not stored refs pending

Inverse problem for the Helmholtz equation with Cauchy data: reconstruction with conditional well-posedness driven iterative regularization

Eva Sincich, Florian Faucher, Giovanni Alessandrini, Maarten V. de Hoop, Romina Gaburro

arxiv:1712.00398 v3 · 2017-12-01 · 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{K3BDGWPFSCBTCM7H6OC2FPIKR5}

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	2026-05-17T23:44:22.864409Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

56c23359e590833133e7f385a2bd0a8f5be32aaf24c4b2a6a966cbee75c4a349

Aliases

arxiv: 1712.00398 · arxiv_version: 1712.00398v3 · doi: 10.48550/arxiv.1712.00398 · pith_short_12: K3BDGWPFSCBT · pith_short_16: K3BDGWPFSCBTCM7H · pith_short_8: K3BDGWPF

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/K3BDGWPFSCBTCM7H6OC2FPIKR5 \
  | 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: 56c23359e590833133e7f385a2bd0a8f5be32aaf24c4b2a6a966cbee75c4a349

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "594a0e589d7bb386fbfe4c4b32fe9a9dc61e159f9be32e60c0830e882bb0bff3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2017-12-01T16:46:04Z",
    "title_canon_sha256": "628d0b576e4e55a0f35938eb7069ad4e4a71cd3f55591606eacc9e6e04843e17"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.00398",
    "kind": "arxiv",
    "version": 3
  }
}