Pith Number

pith:ECDYQYCT

pith:2016:ECDYQYCT2V7RXA7CUNTMCHICMV

not attested not anchored not stored refs pending

Primal-dual method to the minimized surface regularization for image restoration

Yuping Duan, Zhi-Feng Pang

arxiv:1605.09113 v1 · 2016-05-30 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ECDYQYCT2V7RXA7CUNTMCHICMV}

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	2026-05-18T01:13:22.086508Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2087886053d57f1b83e2a366c11d0265470a3c13af6b614e5992372d9acc9e7d

Aliases

arxiv: 1605.09113 · arxiv_version: 1605.09113v1 · doi: 10.48550/arxiv.1605.09113 · pith_short_12: ECDYQYCT2V7R · pith_short_16: ECDYQYCT2V7RXA7C · pith_short_8: ECDYQYCT

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/ECDYQYCT2V7RXA7CUNTMCHICMV \
  | 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: 2087886053d57f1b83e2a366c11d0265470a3c13af6b614e5992372d9acc9e7d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "87dbaee44d3a96e3109129b7ce796d40d9c9aedbe27c94f2ae00350150b8b605",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2016-05-30T06:30:54Z",
    "title_canon_sha256": "0dca8943597fbf59d42e6e78a5a9fa395a0925ae4506ade37344c3f95f254a75"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.09113",
    "kind": "arxiv",
    "version": 1
  }
}