Pith Number

pith:XJ3ULJN4

pith:2013:XJ3ULJN4AP4G2XH72EWS2UM76B

not attested not anchored not stored refs pending

Sample Distortion for Compressed Imaging

Chunli Guo, Mike E. Davies

arxiv:1303.5492 v2 · 2013-03-22 · cs.CV · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XJ3ULJN4AP4G2XH72EWS2UM76B}

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	2026-05-18T01:50:59.694244Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ba7745a5bc03f86d5cffd12d2d519ff04042b188b303d7d96ec82a9249624032

Aliases

arxiv: 1303.5492 · arxiv_version: 1303.5492v2 · doi: 10.48550/arxiv.1303.5492 · pith_short_12: XJ3ULJN4AP4G · pith_short_16: XJ3ULJN4AP4G2XH7 · pith_short_8: XJ3ULJN4

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/XJ3ULJN4AP4G2XH72EWS2UM76B \
  | 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: ba7745a5bc03f86d5cffd12d2d519ff04042b188b303d7d96ec82a9249624032

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7741cef166a7aacebb4242e28d72b4856d42f19c9a28f582c226f3c0ebb002d3",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2013-03-22T00:58:53Z",
    "title_canon_sha256": "2931518d6e8e9f4f171ac2af266beffa826a898dd54215041a76f0f857df7798"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.5492",
    "kind": "arxiv",
    "version": 2
  }
}