Pith Number

pith:DACMRV7F

pith:2017:DACMRV7FMI3YFEVDTQRIVM7JQU

not attested not anchored not stored refs pending

Spectral discretization errors in filtered subspace iteration

Jay Gopalakrishnan, Jeffrey Ovall, Luka Grubi\v{s}i\'c

arxiv:1709.06694 v4 · 2017-09-20 · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DACMRV7FMI3YFEVDTQRIVM7JQU}

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	2026-05-17T23:54:56.614902Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1804c8d7e562378292a39c228ab3e9851239aa2d180dc0a554d1944e1c0e9a3e

Aliases

arxiv: 1709.06694 · arxiv_version: 1709.06694v4 · doi: 10.48550/arxiv.1709.06694 · pith_short_12: DACMRV7FMI3Y · pith_short_16: DACMRV7FMI3YFEVD · pith_short_8: DACMRV7F

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/DACMRV7FMI3YFEVDTQRIVM7JQU \
  | 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: 1804c8d7e562378292a39c228ab3e9851239aa2d180dc0a554d1944e1c0e9a3e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c3a1bbbf37f62661403bbdb036f776505512bab0a2d61906ea1cb2c78b05ce60",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-09-20T01:23:25Z",
    "title_canon_sha256": "eb078e210d6322affdb197568f34571ff4237bb88020a5cd5d3ce8255cf23bfb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.06694",
    "kind": "arxiv",
    "version": 4
  }
}