Pith Number

pith:E7UVVIPW

pith:2011:E7UVVIPWRE6NXSQDQ4GQ4K26KN

not attested not anchored not stored refs pending

Gafchromic film dosimetry: calibration methodology and error analysis

Frank Van den Heuvel, Frederik Maes, Wouter Crijns

arxiv:1107.3780 v1 · 2011-07-19 · 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{E7UVVIPWRE6NXSQDQ4GQ4K26KN}

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	2026-05-18T04:17:16.006659Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

27e95aa1f6893cdbca03870d0e2b5e537dc5f1fc3585a1eff145441fd31f1a88

Aliases

arxiv: 1107.3780 · arxiv_version: 1107.3780v1 · doi: 10.48550/arxiv.1107.3780 · pith_short_12: E7UVVIPWRE6N · pith_short_16: E7UVVIPWRE6NXSQD · pith_short_8: E7UVVIPW

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/E7UVVIPWRE6NXSQDQ4GQ4K26KN \
  | 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: 27e95aa1f6893cdbca03870d0e2b5e537dc5f1fc3585a1eff145441fd31f1a88

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b5f64f779fb4e45dbdcc4ea2d34ebf98058be2681e2f30559c208a83b1e07009",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.med-ph",
    "submitted_at": "2011-07-19T17:19:36Z",
    "title_canon_sha256": "29e819e35b16baa71e99aaf37471f0ccad9ee278e1a565b6ceac1e68185a5a2a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.3780",
    "kind": "arxiv",
    "version": 1
  }
}