Pith Number

pith:XUPUY4D7

pith:2023:XUPUY4D7CD6BPDJ2L7E2A6AQIQ

not attested not anchored not stored refs pending

Universal mask for hard X rays

Alaleh Aminzadeh, Andrew M. Kingston, Daniele Pelliccia, David Ceddia, David M. Paganin, Philip K. Cook

arxiv:2303.12809 v2 · 2023-03-18 · eess.IV · physics.acc-ph · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XUPUY4D7CD6BPDJ2L7E2A6AQIQ}

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	2026-07-05T06:37:31.936698Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bd1f4c707f10fc178d3a5fc9a0781044136268d3d1b9c0a789379e7dd5a54b87

Aliases

arxiv: 2303.12809 · arxiv_version: 2303.12809v2 · doi: 10.48550/arxiv.2303.12809 · pith_short_12: XUPUY4D7CD6B · pith_short_16: XUPUY4D7CD6BPDJ2 · pith_short_8: XUPUY4D7

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/XUPUY4D7CD6BPDJ2L7E2A6AQIQ \
  | 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: bd1f4c707f10fc178d3a5fc9a0781044136268d3d1b9c0a789379e7dd5a54b87

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1776dcc0f35bf764131a84a4e624179f2e99aca49536d13cb3e7f40f16910202",
    "cross_cats_sorted": [
      "physics.acc-ph",
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2023-03-18T04:20:15Z",
    "title_canon_sha256": "239e0bafc047b90600a48693fd798b3fb703df8b74a0c57d8619f1995c248230"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2303.12809",
    "kind": "arxiv",
    "version": 2
  }
}