Pith Number

pith:HEXJX76Z

pith:2019:HEXJX76ZH2BWDHALE2XKX226W2

not attested not anchored not stored refs pending

Tutorials on X-ray Phase Contrast Imaging: Some Fundamentals and Some Conjectures on Future Developments

Daniele Pelliccia, David M. Paganin

arxiv:1902.00364 v2 · 2019-01-31 · eess.IV · 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{HEXJX76ZH2BWDHALE2XKX226W2}

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	2026-05-17T23:52:31.815671Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

392e9bffd93e83619c0b26aeabeb5eb6b8e380428d6c0a5d5bbec20c04f1a498

Aliases

arxiv: 1902.00364 · arxiv_version: 1902.00364v2 · doi: 10.48550/arxiv.1902.00364 · pith_short_12: HEXJX76ZH2BW · pith_short_16: HEXJX76ZH2BWDHAL · pith_short_8: HEXJX76Z

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/HEXJX76ZH2BWDHALE2XKX226W2 \
  | 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: 392e9bffd93e83619c0b26aeabeb5eb6b8e380428d6c0a5d5bbec20c04f1a498

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d588b0e625ee0e2030172116a4890aa31bcefde532dffa2fb493038889db2dbf",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2019-01-31T09:51:59Z",
    "title_canon_sha256": "bb1acb792708bf8b7a5225a9af5edbb4256155f6e9c998d5e1ee6903ff453f9b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.00364",
    "kind": "arxiv",
    "version": 2
  }
}