Pith Number

pith:XD25JQOC

pith:2018:XD25JQOCOKBAG4WNMEPG6ZS7NI

not attested not anchored not stored refs pending

Simultaneous determination of two coefficients in the Riemannian hyperbolic equation from boundary measurements

Mourad Bellassoued, Zouhour Rezig

arxiv:1805.00339 v1 · 2018-04-28 · 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{XD25JQOCOKBAG4WNMEPG6ZS7NI}

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	2026-05-18T00:17:09.861618Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b8f5d4c1c272820372cd611e6f665f6a2cbd1a506b1a86affcd29ff08cba9ae2

Aliases

arxiv: 1805.00339 · arxiv_version: 1805.00339v1 · doi: 10.48550/arxiv.1805.00339 · pith_short_12: XD25JQOCOKBA · pith_short_16: XD25JQOCOKBAG4WN · pith_short_8: XD25JQOC

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/XD25JQOCOKBAG4WNMEPG6ZS7NI \
  | 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: b8f5d4c1c272820372cd611e6f665f6a2cbd1a506b1a86affcd29ff08cba9ae2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f44f08d737b6e15d7f02f367eac035e25b8c4a77dacf9e2595caeefdf6a3174b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2018-04-28T20:34:19Z",
    "title_canon_sha256": "e0bdd72ec27e712a3836c5463411ec90db6173b79cb23ef99954ca394e7b9808"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.00339",
    "kind": "arxiv",
    "version": 1
  }
}