Pith Number

pith:MBG7HKPF

pith:2020:MBG7HKPFDCY6UCKED6FZM465XA

not attested not anchored not stored refs pending

Decay for the Kelvin-Voigt damped wave equation: Piecewise smooth damping

Chenmin Sun, Nicolas Burq

arxiv:2007.12994 v2 · 2020-07-25 · math.AP · 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{MBG7HKPFDCY6UCKED6FZM465XA}

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	2026-07-05T03:41:57.422968Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

604df3a9e518b1ea09441f8b9673ddb835b24410c8e1e0502f4aee01fe56a633

Aliases

arxiv: 2007.12994 · arxiv_version: 2007.12994v2 · doi: 10.48550/arxiv.2007.12994 · pith_short_12: MBG7HKPFDCY6 · pith_short_16: MBG7HKPFDCY6UCKE · pith_short_8: MBG7HKPF

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/MBG7HKPFDCY6UCKED6FZM465XA \
  | 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: 604df3a9e518b1ea09441f8b9673ddb835b24410c8e1e0502f4aee01fe56a633

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5d413603bd91562a3fd2716e22f412357116ac9fe63bc6cd3abb52a9a993cdf8",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2020-07-25T18:38:10Z",
    "title_canon_sha256": "4f98b1e4302eabb3ead9093c91aadd483ef3254559924f0db16389cc0bdee32a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.12994",
    "kind": "arxiv",
    "version": 2
  }
}