Pith Number

pith:ZP4LK3H5

pith:2016:ZP4LK3H5543C7R4ZGZE2RIFSYB

not attested not anchored not stored refs pending

The resonant boundary $Q$-curvature problem and boundary-weighted barycenters

Cheikh Birahim Ndiaye, Mohameden Ahmedou, Sadok Kallel

arxiv:1604.03745 v1 · 2016-04-13 · math.DG · 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{ZP4LK3H5543C7R4ZGZE2RIFSYB}

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	2026-05-18T01:17:11.174242Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cbf8b56cfdef362fc7993649a8a0b2c07ac83c6cea4a23c1fc00ea5fc6a8b7ab

Aliases

arxiv: 1604.03745 · arxiv_version: 1604.03745v1 · doi: 10.48550/arxiv.1604.03745 · pith_short_12: ZP4LK3H5543C · pith_short_16: ZP4LK3H5543C7R4Z · pith_short_8: ZP4LK3H5

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/ZP4LK3H5543C7R4ZGZE2RIFSYB \
  | 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: cbf8b56cfdef362fc7993649a8a0b2c07ac83c6cea4a23c1fc00ea5fc6a8b7ab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2c77eff8ed2f2007ac832e084b5b0cd2915313fc24e5df0d6fb8394429df0447",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2016-04-13T12:52:05Z",
    "title_canon_sha256": "a3623d008ee46060f95f723943821573725253ecc1d6def8793b3438d0811966"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.03745",
    "kind": "arxiv",
    "version": 1
  }
}