Pith Number

pith:SDLEFNXZ

pith:2016:SDLEFNXZ3SECHR75AHEPBGV3GT

not attested not anchored not stored refs pending

Cloud Dictionary: Sparse Coding and Modeling for Point Clouds

Alex Bronstein, Or Litany, Tal Remez

arxiv:1612.04956 v2 · 2016-12-15 · cs.CV · cs.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SDLEFNXZ3SECHR75AHEPBGV3GT}

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	2026-05-18T00:48:15.775116Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

90d642b6f9dc8823c7fd01c8f09abb34e7622768bcfdeb05b994fbfdb48f29bd

Aliases

arxiv: 1612.04956 · arxiv_version: 1612.04956v2 · doi: 10.48550/arxiv.1612.04956 · pith_short_12: SDLEFNXZ3SEC · pith_short_16: SDLEFNXZ3SECHR75 · pith_short_8: SDLEFNXZ

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/SDLEFNXZ3SECHR75AHEPBGV3GT \
  | 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: 90d642b6f9dc8823c7fd01c8f09abb34e7622768bcfdeb05b994fbfdb48f29bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2fffe8ea984b39b1f1ec11c8fa411722e8474f1384f445d66ee0576c95dd0d23",
    "cross_cats_sorted": [
      "cs.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2016-12-15T07:53:27Z",
    "title_canon_sha256": "8789b4014d525e786021a5d8e718be582d6c1ef8c224366d797678e5a943ce80"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.04956",
    "kind": "arxiv",
    "version": 2
  }
}