Pith Number

pith:2UGRGBCD

pith:2021:2UGRGBCD4DCVYJOKQVBDLNWG4I

not attested not anchored not stored refs pending

NuSPAN: A Proximal Average Network for Nonuniform Sparse Model -- Application to Seismic Reflectivity Inversion

Chandra Sekhar Seelamantula, Kusala Rajendran, Praveen Kumar Pokala, Swapnil Mache

arxiv:2105.00003 v2 · 2021-05-01 · physics.geo-ph · cs.LG · eess.IV · eess.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2UGRGBCD4DCVYJOKQVBDLNWG4I}

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	2026-07-05T03:14:55.122486Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d50d130443e0c55c25ca854235b6c6e22b07b349852ad6c31483de1f7f269127

Aliases

arxiv: 2105.00003 · arxiv_version: 2105.00003v2 · doi: 10.48550/arxiv.2105.00003 · pith_short_12: 2UGRGBCD4DCV · pith_short_16: 2UGRGBCD4DCVYJOK · pith_short_8: 2UGRGBCD

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/2UGRGBCD4DCVYJOKQVBDLNWG4I \
  | 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: d50d130443e0c55c25ca854235b6c6e22b07b349852ad6c31483de1f7f269127

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "19579d49baeb833f625cd7dcae473e696f3d203cce68d7e4ad4854fcf60e4bc1",
    "cross_cats_sorted": [
      "cs.LG",
      "eess.IV",
      "eess.SP"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.geo-ph",
    "submitted_at": "2021-05-01T04:33:02Z",
    "title_canon_sha256": "7b7c6bec1eb786656b4906ebd4da2e53f3e7280ad4d73efa130833caeacdf39a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.00003",
    "kind": "arxiv",
    "version": 2
  }
}