Pith Number

pith:OS6VRH4L

pith:2018:OS6VRH4LFGHIEQOZS4DAEEA7SQ

not attested not anchored not stored refs pending

Inverse coefficients problem for a magnetohydrodynamics system

Xinchi Huang

arxiv:1806.07575 v1 · 2018-06-20 · 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{OS6VRH4LFGHIEQOZS4DAEEA7SQ}

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	2026-05-18T00:12:47.308328Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

74bd589f8b298e8241d9970602101f9411915c0e09de000c627bc521f870358c

Aliases

arxiv: 1806.07575 · arxiv_version: 1806.07575v1 · doi: 10.48550/arxiv.1806.07575 · pith_short_12: OS6VRH4LFGHI · pith_short_16: OS6VRH4LFGHIEQOZ · pith_short_8: OS6VRH4L

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/OS6VRH4LFGHIEQOZS4DAEEA7SQ \
  | 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: 74bd589f8b298e8241d9970602101f9411915c0e09de000c627bc521f870358c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "273a1b70b0b8986b2a167dba4f321c4e4aff83b4e20644884fe4e0a3140451bc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2018-06-20T07:01:50Z",
    "title_canon_sha256": "abdec124f34ba8007f82384ecfaeb0e8445f46943f9eed9a8479299361ac1de3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.07575",
    "kind": "arxiv",
    "version": 1
  }
}