Pith Number

pith:R4KMVYMR

pith:2007:R4KMVYMRNAATJD4CLLNFBUICXF

not attested not anchored not stored refs pending

Grassmannian spectral shooting

Simon J.A. Malham, Veerle Ledoux, Vera Thummler

arxiv:0710.1037 v3 · 2007-10-04 · math.NA · cs.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{R4KMVYMRNAATJD4CLLNFBUICXF}

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	2026-06-03T22:06:02.714145Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f14cae1916801348f825ada50d102b97a7c5af939fbc7787844f4949d764692

Aliases

arxiv: 0710.1037 · arxiv_version: 0710.1037v3 · doi: 10.48550/arxiv.0710.1037 · pith_short_12: R4KMVYMRNAAT · pith_short_16: R4KMVYMRNAATJD4C · pith_short_8: R4KMVYMR

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/R4KMVYMRNAATJD4CLLNFBUICXF \
  | 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: 8f14cae1916801348f825ada50d102b97a7c5af939fbc7787844f4949d764692

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6f517042d709b7e207e1e567a356090db3aab2cdaa612b41411a90a4b5d522c3",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2007-10-04T15:51:44Z",
    "title_canon_sha256": "dcd132f68b2a71d9fcabc7ff3f4f414db9d8f946f3a65aeff40247874a6273f2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0710.1037",
    "kind": "arxiv",
    "version": 3
  }
}