Pith Number

pith:C4FXC6KI

pith:2017:C4FXC6KIA2Y2CVBKMK6HAVGLTK

not attested not anchored not stored refs pending

Spectral Methods in the Presence of Discontinuities

Erik Schnetter, Joanna Piotrowska, Jonah M. Miller

arxiv:1712.09952 v2 · 2017-12-28 · math.NA · cs.NA · gr-qc · physics.comp-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{C4FXC6KIA2Y2CVBKMK6HAVGLTK}

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	2026-06-04T19:11:22.757691Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

170b71794806b1a1542a62bc7054cb9a9756f79896480f079b86bbe091e93144

Aliases

arxiv: 1712.09952 · arxiv_version: 1712.09952v2 · doi: 10.48550/arxiv.1712.09952 · pith_short_12: C4FXC6KIA2Y2 · pith_short_16: C4FXC6KIA2Y2CVBK · pith_short_8: C4FXC6KI

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/C4FXC6KIA2Y2CVBKMK6HAVGLTK \
  | 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: 170b71794806b1a1542a62bc7054cb9a9756f79896480f079b86bbe091e93144

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cd6bd0e302da61470f64b29c8c2b6cae8ce75f9371d9b0f83f94072d08cbbf2a",
    "cross_cats_sorted": [
      "cs.NA",
      "gr-qc",
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-12-28T17:48:30Z",
    "title_canon_sha256": "f5dc529d41597bdbfab110c5b18f54605961794e56b970372831819d1ebe8f55"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.09952",
    "kind": "arxiv",
    "version": 2
  }
}