Pith Number

pith:QUYU3SGQ

pith:2012:QUYU3SGQHTPN2VXC5YBFPR7F3I

not attested not anchored not stored refs pending

Greedy-Like Algorithms for the Cosparse Analysis Model

INRIA - IRISA), Michael Elad, Mike E. Davies, Raja Giryes, R\'emi Gribonval (INRIA - IRISA, Sangnam Nam (INRIA - IRISA)

arxiv:1207.2456 v2 · 2012-07-10 · math.FA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QUYU3SGQHTPN2VXC5YBFPR7F3I}

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	2026-05-18T03:03:22.190102Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

85314dc8d03cdedd56e2ee0257c7e5da0beab81d82c5fd38f3360703cacb3b7c

Aliases

arxiv: 1207.2456 · arxiv_version: 1207.2456v2 · doi: 10.48550/arxiv.1207.2456 · pith_short_12: QUYU3SGQHTPN · pith_short_16: QUYU3SGQHTPN2VXC · pith_short_8: QUYU3SGQ

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/QUYU3SGQHTPN2VXC5YBFPR7F3I \
  | 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: 85314dc8d03cdedd56e2ee0257c7e5da0beab81d82c5fd38f3360703cacb3b7c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b93e1b14b7ebf1457de536849af7fd5a426959dfa0cabace9aef9849e39dfa1c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2012-07-10T19:56:43Z",
    "title_canon_sha256": "8e7f9088578730747b847e95bc5926c6ed0982c3b0819b2df7bd73937c05cfe4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.2456",
    "kind": "arxiv",
    "version": 2
  }
}