Pith Number

pith:RE463E6O

pith:2011:RE463E6OPIDU73C6RDFJS34IMR

not attested not anchored not stored refs pending

Spectral Tetris Fusion Frame Constructions

Andreas Heinecke, Matthew Fickus, Peter G. Casazza, Yang Wang, Zhengfang Zhou

arxiv:1108.4061 v2 · 2011-08-19 · 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{RE463E6OPIDU73C6RDFJS34IMR}

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	2026-05-18T02:00:50.251638Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8939ed93ce7a074fec5e88ca996f88644393babc719bd4ebc6c42253d15f8b5e

Aliases

arxiv: 1108.4061 · arxiv_version: 1108.4061v2 · doi: 10.48550/arxiv.1108.4061 · pith_short_12: RE463E6OPIDU · pith_short_16: RE463E6OPIDU73C6 · pith_short_8: RE463E6O

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/RE463E6OPIDU73C6RDFJS34IMR \
  | 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: 8939ed93ce7a074fec5e88ca996f88644393babc719bd4ebc6c42253d15f8b5e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "282a6fe0a675a6e31a32086023b5025e47fbe44a73a9c271c8d7d69e6dea592a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2011-08-19T22:06:08Z",
    "title_canon_sha256": "b00cdc2aa600780a5faf8902f84a81b1cfd7f25f5e11de76a2f8a4005d20d254"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.4061",
    "kind": "arxiv",
    "version": 2
  }
}