Pith Number

pith:4XG7CVYN

pith:2018:4XG7CVYNLNFCTH3OQHBKT3X5UZ

not attested not anchored not stored refs pending

Future (of) Synchrotrons for Particle Therapy

Boston, Cambridge, Harvard Medical School, Jay Flanz (Massachusetts General Hospital, MA, USA, USA)

arxiv:1804.08987 v1 · 2018-04-24 · physics.med-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4XG7CVYNLNFCTH3OQHBKT3X5UZ}

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	2026-05-18T00:17:36.689503Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e5cdf1570d5b4a299f6e81c2a9eefda661b7bb895785143577115ca055815f4d

Aliases

arxiv: 1804.08987 · arxiv_version: 1804.08987v1 · doi: 10.48550/arxiv.1804.08987 · pith_short_12: 4XG7CVYNLNFC · pith_short_16: 4XG7CVYNLNFCTH3O · pith_short_8: 4XG7CVYN

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/4XG7CVYNLNFCTH3OQHBKT3X5UZ \
  | 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: e5cdf1570d5b4a299f6e81c2a9eefda661b7bb895785143577115ca055815f4d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1d47bd340ca0078d9aab393f3434b02dcac331fe9a1a086d8745635fb94e58ad",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.med-ph",
    "submitted_at": "2018-04-24T12:32:25Z",
    "title_canon_sha256": "5d275667c1eb2be607556a1d225bb670742e033567ebcf41e6eee9cfdc6365bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.08987",
    "kind": "arxiv",
    "version": 1
  }
}