Pith Number

pith:J27US3XA

pith:2008:J27US3XAJ7FGEIWZYATFQ2VDDA

not attested not anchored not stored refs pending

Spin degrees and Polarization Observables in Electromagnetic Reactions

Hartmuth Arenhoevel

arxiv:0804.2559 v1 · 2008-04-16 · nucl-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{J27US3XAJ7FGEIWZYATFQ2VDDA}

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	2026-05-18T02:15:53.568944Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4ebf496ee04fca6222d9c026586aa3180a0177ff2f03b29a00286afb71334231

Aliases

arxiv: 0804.2559 · arxiv_version: 0804.2559v1 · doi: 10.48550/arxiv.0804.2559 · pith_short_12: J27US3XAJ7FG · pith_short_16: J27US3XAJ7FGEIWZ · pith_short_8: J27US3XA

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/J27US3XAJ7FGEIWZYATFQ2VDDA \
  | 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: 4ebf496ee04fca6222d9c026586aa3180a0177ff2f03b29a00286afb71334231

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "873318039147717fae252f70f431ec7edb321483db9f639d2a0fa73df75ad224",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nucl-th",
    "submitted_at": "2008-04-16T09:26:08Z",
    "title_canon_sha256": "54c76fa1c9bb352a0f38e8e4280f5a9b53fe33283852dcd28a7cd0083f8db916"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0804.2559",
    "kind": "arxiv",
    "version": 1
  }
}