Pith Number

pith:77ZUDHPM

pith:2015:77ZUDHPMRN52QBGQK2XNHDHSI3

not attested not anchored not stored refs pending

Spectral approach to D-bar problems

C. Klein, K. McLaughlin

arxiv:1508.02363 v1 · 2015-08-10 · math.NA · nlin.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{77ZUDHPMRN52QBGQK2XNHDHSI3}

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	2026-05-18T01:35:33.429261Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fff3419dec8b7ba804d056aed38cf246e96a8d935c09fb648383d69e7615dbbe

Aliases

arxiv: 1508.02363 · arxiv_version: 1508.02363v1 · doi: 10.48550/arxiv.1508.02363 · pith_short_12: 77ZUDHPMRN52 · pith_short_16: 77ZUDHPMRN52QBGQ · pith_short_8: 77ZUDHPM

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/77ZUDHPMRN52QBGQK2XNHDHSI3 \
  | 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: fff3419dec8b7ba804d056aed38cf246e96a8d935c09fb648383d69e7615dbbe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "07ac858c3069bb9ce751d86afc456f8a10685344c8d7d99096c3febf9effbfd4",
    "cross_cats_sorted": [
      "nlin.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2015-08-10T19:21:22Z",
    "title_canon_sha256": "e789cf1fcd1216f877b5818ea2a7e20a06034915eba405ba697f068736a29e7b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.02363",
    "kind": "arxiv",
    "version": 1
  }
}