Pith Number

pith:T6IYGR4E

pith:2026:T6IYGR4E27BJS7VKTQBSMOYF56

not attested not anchored not stored refs pending

Variational Analysis of Metric Projections onto Isotone Projection Cones via Coderivatives

Le Van Hien

arxiv:2606.08386 v1 · 2026-06-07 · math.OC · math.FA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{T6IYGR4E27BJS7VKTQBSMOYF56}

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	2026-06-09T01:05:35.340376Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9f91834784d7c2997eaa9c03263b05efa35a66e3ada5d54469bae2faf633161c

Aliases

arxiv: 2606.08386 · arxiv_version: 2606.08386v1 · doi: 10.48550/arxiv.2606.08386 · pith_short_12: T6IYGR4E27BJ · pith_short_16: T6IYGR4E27BJS7VK · pith_short_8: T6IYGR4E

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/T6IYGR4E27BJS7VKTQBSMOYF56 \
  | 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: 9f91834784d7c2997eaa9c03263b05efa35a66e3ada5d54469bae2faf633161c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "64d53ff235ebcaef2707cb4f5bbdf563c144fe96183b811dc4aed2e9ba2d6fc9",
    "cross_cats_sorted": [
      "math.FA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2026-06-07T00:46:51Z",
    "title_canon_sha256": "60f5dcadd8fba46d0dacb3024413674009768dd504b4d2ea22fedb7649a967a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.08386",
    "kind": "arxiv",
    "version": 1
  }
}