Pith Number

pith:UPER5S7L

pith:2023:UPER5S7LBABCSK7367I32NXRBP

not attested not anchored not stored refs pending

X-ray Spectral Estimation using Dictionary Learning

Charles A. Bouman, Gregery T. Buzzard, Jean-Baptiste Forien, K. Aditya Mohan, Saransh Singh, Venkatesh Sridhar, Wenrui Li, Xin Liu

arxiv:2302.13494 v1 · 2023-02-27 · eess.IV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UPER5S7LBABCSK7367I32NXRBP}

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	2026-07-05T05:45:47.752719Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a3c91ecbeb0802292bfbf7d1bd36f10bfa29b0c1f667158f5cf7de559c383fdd

Aliases

arxiv: 2302.13494 · arxiv_version: 2302.13494v1 · doi: 10.48550/arxiv.2302.13494 · pith_short_12: UPER5S7LBABC · pith_short_16: UPER5S7LBABCSK73 · pith_short_8: UPER5S7L

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/UPER5S7LBABCSK7367I32NXRBP \
  | 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: a3c91ecbeb0802292bfbf7d1bd36f10bfa29b0c1f667158f5cf7de559c383fdd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f3895600e98c2da23b7a9e9ab67841259cc0edf2aaf3ec99cb761a6b0c399ddb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2023-02-27T03:42:35Z",
    "title_canon_sha256": "9696da9276a40d2d30087cfe7cf1ce639ef8cf426bb364905143eb1061d757bc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2302.13494",
    "kind": "arxiv",
    "version": 1
  }
}