Pith Number

pith:Q5VUD6A7

pith:2016:Q5VUD6A7UXVVPSN6UKB5YOUCNZ

not attested not anchored not stored refs pending

A shape-derivative approach to some PDE model in image restoration

Carla Baroncini, Julian Fernandez Bonder

arxiv:1612.08955 v2 · 2016-12-28 · 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{Q5VUD6A7UXVVPSN6UKB5YOUCNZ}

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	2026-05-18T00:26:46.610097Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

876b41f81fa5eb57c9bea283dc3a826e54b6cdaee26d5a1440cc606faac26037

Aliases

arxiv: 1612.08955 · arxiv_version: 1612.08955v2 · doi: 10.48550/arxiv.1612.08955 · pith_short_12: Q5VUD6A7UXVV · pith_short_16: Q5VUD6A7UXVVPSN6 · pith_short_8: Q5VUD6A7

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/Q5VUD6A7UXVVPSN6UKB5YOUCNZ \
  | 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: 876b41f81fa5eb57c9bea283dc3a826e54b6cdaee26d5a1440cc606faac26037

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "59b01d8afefe5e0abdd7ed0b78c9ee3f25df005e45fe0c269744237d489f9517",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2016-12-28T19:20:02Z",
    "title_canon_sha256": "5d706f2f5627724ad2b21dd73cea9b2fc36b446b29c545edba5aa33b677609d8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.08955",
    "kind": "arxiv",
    "version": 2
  }
}