Pith Number

pith:ZQDRPFRR

pith:1999:ZQDRPFRRBKCZPI26BHFBGEBCCN

not attested not anchored not stored refs pending

A measurement of the absolute neutron beam polarization produced by an optically-pumped 3He spin filter

A. K. Thompson, A. Masaike, B. E. Crawford, C. D. Keith, D. A. Smith, D. R. Rich, G. Jones, J. D. Bowman, J. Knudson, M. A. Espy, M. B. Leuschner, P. P. J. Delheij, S. I. Penttila, S. L. Stephenson, T. Haseyama, V. R. Pomeroy, V. Yuan, W. M. Snow, Y. Masuda, Y. Matsuda

arxiv:physics/9908050 v1 · 1999-08-25 · physics.ins-det

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZQDRPFRRBKCZPI26BHFBGEBCCN}

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	2026-07-04T14:45:03.250084Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc071796310a8597a35e09ca13102213767f372acea029988e1379542b4f352b

Aliases

arxiv: physics/9908050 · arxiv_version: physics/9908050v1 · doi: 10.48550/arxiv.physics/9908050 · pith_short_12: ZQDRPFRRBKCZ · pith_short_16: ZQDRPFRRBKCZPI26 · pith_short_8: ZQDRPFRR

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/ZQDRPFRRBKCZPI26BHFBGEBCCN \
  | 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: cc071796310a8597a35e09ca13102213767f372acea029988e1379542b4f352b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1eda774050564bf4aba4f7163c57e861cbff127be293b05d2aa40380046c2928",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "physics.ins-det",
    "submitted_at": "1999-08-25T18:33:06Z",
    "title_canon_sha256": "8cb5b1da6bbe16ea6a6f60e727b05cf9e9d98dcd0f0d06f6dcb478b84f69d4c2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/9908050",
    "kind": "arxiv",
    "version": 1
  }
}