Pith Number

pith:UIQYZGMI

pith:2019:UIQYZGMIORJD6H7LKSFM3UFXLM

not attested not anchored not stored refs pending

Initial operation of the recoil mass spectrometer EMMA at the ISAC-II facility of TRIUMF

B. Davids, B.R. Fulton, D. Connolly, J. Lighthall, K. Hudson, M. Alcorta, M. Williams, N.E. Esker, N. Khan, O.S. Kirsebom, P. Machule

arxiv:1904.08409 v1 · 2019-04-16 · physics.ins-det · nucl-ex

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UIQYZGMIORJD6H7LKSFM3UFXLM}

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	2026-05-17T23:46:45.584561Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a2218c998874523f1feb548acdd0b75b0e8da0c8697035743352815da91cfe4a

Aliases

arxiv: 1904.08409 · arxiv_version: 1904.08409v1 · doi: 10.48550/arxiv.1904.08409 · pith_short_12: UIQYZGMIORJD · pith_short_16: UIQYZGMIORJD6H7L · pith_short_8: UIQYZGMI

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/UIQYZGMIORJD6H7LKSFM3UFXLM \
  | 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: a2218c998874523f1feb548acdd0b75b0e8da0c8697035743352815da91cfe4a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "85646dea5d75e33b64b70e5e993686148a9c486645850d7da563d9d1de59b1a6",
    "cross_cats_sorted": [
      "nucl-ex"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ins-det",
    "submitted_at": "2019-04-16T23:12:06Z",
    "title_canon_sha256": "035518906c36d3f712bc086aa5f918b47a13d5972c99f8ab10c8452aa888370b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.08409",
    "kind": "arxiv",
    "version": 1
  }
}