Pith Number

pith:DGTI2YUO

pith:2016:DGTI2YUORCVIURWATML6KDC5HL

not attested not anchored not stored refs pending

Sampling approach to sparse approximation problem: determining degrees of freedom by simulated annealing

Tomoyuki Obuchi, Yoshiyuki Kabashima

arxiv:1603.01399 v2 · 2016-03-04 · cs.IT · cond-mat.dis-nn · cond-mat.stat-mech · math.IT · stat.ME

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DGTI2YUORCVIURWATML6KDC5HL}

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	2026-05-18T01:03:19.606759Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

19a68d628e88aa8a46c09b17e50c5d3afe73b418d20a80af1d5a30ebc2bf0981

Aliases

arxiv: 1603.01399 · arxiv_version: 1603.01399v2 · doi: 10.48550/arxiv.1603.01399 · pith_short_12: DGTI2YUORCVI · pith_short_16: DGTI2YUORCVIURWA · pith_short_8: DGTI2YUO

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/DGTI2YUORCVIURWATML6KDC5HL \
  | 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: 19a68d628e88aa8a46c09b17e50c5d3afe73b418d20a80af1d5a30ebc2bf0981

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fec90ecd5f67d02235a0567794dcd4f141ad7875a0e349c5a74198427d738815",
    "cross_cats_sorted": [
      "cond-mat.dis-nn",
      "cond-mat.stat-mech",
      "math.IT",
      "stat.ME"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2016-03-04T09:49:46Z",
    "title_canon_sha256": "9fbe326c5b8a96c1d0c38ead2f20871c99ee5209c45d7c7730be1413fa16c682"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.01399",
    "kind": "arxiv",
    "version": 2
  }
}