Pith Number

pith:OQT7OTK3

pith:2019:OQT7OTK3LJ27YY24DVLDAWNOFK

not attested not anchored not stored refs pending

Optimal rearrangement problem and normalized obstacle problem in the fractional setting

Hayk Mikayelyan, Juli\'an Fern\'andez Bonder, Zhiwei Cheng

arxiv:1905.05415 v2 · 2019-05-14 · 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{OQT7OTK3LJ27YY24DVLDAWNOFK}

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	2026-05-17T23:45:43.964067Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7427f74d5b5a75fc635c1d563059ae2a909c92814c7e4c46319648c38e43764a

Aliases

arxiv: 1905.05415 · arxiv_version: 1905.05415v2 · doi: 10.48550/arxiv.1905.05415 · pith_short_12: OQT7OTK3LJ27 · pith_short_16: OQT7OTK3LJ27YY24 · pith_short_8: OQT7OTK3

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/OQT7OTK3LJ27YY24DVLDAWNOFK \
  | 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: 7427f74d5b5a75fc635c1d563059ae2a909c92814c7e4c46319648c38e43764a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e3d1655248a504d706728775d1e5dadff251289a3cf3e9efdf23bc54e7d4c561",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2019-05-14T06:47:53Z",
    "title_canon_sha256": "43a00fd9194a8503154239cd420b53b5e7c550dcf5fc6e6bffec3773d40f64b4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.05415",
    "kind": "arxiv",
    "version": 2
  }
}