Pith Number

pith:XAV2V6QL

pith:2019:XAV2V6QLJFOWAXLKNLBJBNAS75

not attested not anchored not stored refs pending

On truncated spectral regularization for an ill-posed evolution equation

M. Thamban Nair

arxiv:1907.11076 v1 · 2019-07-22 · math.AP · 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{XAV2V6QLJFOWAXLKNLBJBNAS75}

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	2026-05-17T23:39:33.565448Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b82baafa0b495d605d6a6ac290b412ff6e68a0eaff4eb778e4c40aaede8433b9

Aliases

arxiv: 1907.11076 · arxiv_version: 1907.11076v1 · doi: 10.48550/arxiv.1907.11076 · pith_short_12: XAV2V6QLJFOW · pith_short_16: XAV2V6QLJFOWAXLK · pith_short_8: XAV2V6QL

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/XAV2V6QLJFOWAXLKNLBJBNAS75 \
  | 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: b82baafa0b495d605d6a6ac290b412ff6e68a0eaff4eb778e4c40aaede8433b9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8661a6ff694f2962c3c5eed9b6fbd7a32906080ca16241f867c52f538dee7938",
    "cross_cats_sorted": [
      "math.FA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2019-07-22T18:50:52Z",
    "title_canon_sha256": "20a3cf75f5207c3f004e7dbe10482c744b1e005f152184f2a10b7015343d44aa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.11076",
    "kind": "arxiv",
    "version": 1
  }
}