Pith Number

pith:CQX4ICRH

pith:2024:CQX4ICRHP3JQH4IEWUE64Z32V2

not attested not anchored not stored refs pending

An inverse hyperbolic obstacle problem

Hiroshi Takase, Mourad Choulli

arxiv:2407.05662 v3 · 2024-07-08 · 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{CQX4ICRHP3JQH4IEWUE64Z32V2}

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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.

Cited by

1 paper in Pith

An inverse obstacle problem for the magnetic Schr\"odinger equation

Receipt and verification

First computed	2026-07-05T10:36:26.287217Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

142fc40a277ed303f104b509ee677aae9c91649d0123c9046d0434c7130c3403

Aliases

arxiv: 2407.05662 · arxiv_version: 2407.05662v3 · doi: 10.48550/arxiv.2407.05662 · pith_short_12: CQX4ICRHP3JQ · pith_short_16: CQX4ICRHP3JQH4IE · pith_short_8: CQX4ICRH

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/CQX4ICRHP3JQH4IEWUE64Z32V2 \
  | 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: 142fc40a277ed303f104b509ee677aae9c91649d0123c9046d0434c7130c3403

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8a09b68876c6be580fee713cba8eb4eff1ee8e0c9c56dd32957edec3e8e25e3e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2024-07-08T06:52:58Z",
    "title_canon_sha256": "8b9d82ce73c3db1ada5a2f4e23b006431b2285514ea620806ee8bca9d23d63cd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2407.05662",
    "kind": "arxiv",
    "version": 3
  }
}