Pith Number

pith:GF5T7SD7

pith:2018:GF5T7SD7GRB3IIKA3E4W2WKWGM

not attested not anchored not stored refs pending

Towards solving the proton spin puzzle

Andreas Ekstedt, Gunnar Ingelman, Hazhar Ghaderi, Stefan Leupold (Uppsala University)

arxiv:1808.06631 v2 · 2018-08-20 · hep-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{GF5T7SD7GRB3IIKA3E4W2WKWGM}

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	2026-05-17T23:42:53.783308Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

317b3fc87f3443b42140d9396d59563304c8d4e98840b8bbfc1041d24ff011a8

Aliases

arxiv: 1808.06631 · arxiv_version: 1808.06631v2 · doi: 10.48550/arxiv.1808.06631 · pith_short_12: GF5T7SD7GRB3 · pith_short_16: GF5T7SD7GRB3IIKA · pith_short_8: GF5T7SD7

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/GF5T7SD7GRB3IIKA3E4W2WKWGM \
  | 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: 317b3fc87f3443b42140d9396d59563304c8d4e98840b8bbfc1041d24ff011a8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5cde1fe4cded9abb5bba639182fcd45fe595ebaac36542c2f0a23ab523e4f998",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2018-08-20T18:06:14Z",
    "title_canon_sha256": "42d68532c29ee93d411da40014128ef9e9ae90fe08fd58add4283e280155a8dc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.06631",
    "kind": "arxiv",
    "version": 2
  }
}