Pith Number

pith:5HBXZ5ST

pith:2016:5HBXZ5STF4S3H76LNMI7THPOBQ

not attested not anchored not stored refs pending

Restoring STM images via Sparse Coding: noise and artifact removal

Ana Bragan\c{c}a, Jo\~ao P. Oliveira, Jorge Morgado, Jos\'e Bioucas-Dias, Lu\'is Alc\'acer, M\'ario Figueiredo, Quirina Ferreira

arxiv:1610.03437 v1 · 2016-10-11 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5HBXZ5STF4S3H76LNMI7THPOBQ}

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	2026-05-18T01:02:31.480617Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e9c37cf6532f25b3ffcb6b11f99dee0c2c1cc5852574ddcd1e649f0a2dde3df9

Aliases

arxiv: 1610.03437 · arxiv_version: 1610.03437v1 · doi: 10.48550/arxiv.1610.03437 · pith_short_12: 5HBXZ5STF4S3 · pith_short_16: 5HBXZ5STF4S3H76L · pith_short_8: 5HBXZ5ST

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/5HBXZ5STF4S3H76LNMI7THPOBQ \
  | 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: e9c37cf6532f25b3ffcb6b11f99dee0c2c1cc5852574ddcd1e649f0a2dde3df9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7250fce3b571ecee1b00db681bc8717ad6ad74192a58328a5c09c7eea52af215",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2016-10-11T17:37:47Z",
    "title_canon_sha256": "20aa8bead36ab80007c99e380d02febb2ca909e398f1ce8b34d06d9d440e827c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1610.03437",
    "kind": "arxiv",
    "version": 1
  }
}