Pith Number

pith:QULOPZD2

pith:2010:QULOPZD2M5IGZRCXQB7WRUB7XS

not attested not anchored not stored refs pending

Slow time behavior of the semidiscrete Perona-Malik scheme in dimension one

Maria Colombo, Massimo Gobbino

arxiv:1012.4406 v1 · 2010-12-20 · 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{QULOPZD2M5IGZRCXQB7WRUB7XS}

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	2026-05-18T04:32:54.861363Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8516e7e47a67506cc457807f68d03fbcafd513a8603448acc680e121b2c552ab

Aliases

arxiv: 1012.4406 · arxiv_version: 1012.4406v1 · doi: 10.48550/arxiv.1012.4406 · pith_short_12: QULOPZD2M5IG · pith_short_16: QULOPZD2M5IGZRCX · pith_short_8: QULOPZD2

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/QULOPZD2M5IGZRCXQB7WRUB7XS \
  | 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: 8516e7e47a67506cc457807f68d03fbcafd513a8603448acc680e121b2c552ab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9415cd9c97c0eaafa274a564d17bb2d57938a21e216453b5806010d2c3d62d0f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2010-12-20T17:07:21Z",
    "title_canon_sha256": "4421a1cb7ef75e999271b26571fc3b512665d249637476471e5062e1e530ace9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1012.4406",
    "kind": "arxiv",
    "version": 1
  }
}