Pith Number

pith:AANI6L64

pith:2011:AANI6L64YCDGIVIO6VMWDFGGZZ

not attested not anchored not stored refs pending

Mathisson's helical motions for a spinning particle --- are they unphysical?

Carlos A. R. Herdeiro, Jos\'e Nat\'ario, L. Filipe O. Costa, Miguel Zilh\~ao

arxiv:1109.1019 v1 · 2011-09-05 · gr-qc · hep-th · physics.class-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{AANI6L64YCDGIVIO6VMWDFGGZZ}

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	2026-05-18T03:59:36.616035Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

001a8f2fdcc08664550ef5596194c6ce626f55b70624cda0c66c53fe3b9306f2

Aliases

arxiv: 1109.1019 · arxiv_version: 1109.1019v1 · doi: 10.48550/arxiv.1109.1019 · pith_short_12: AANI6L64YCDG · pith_short_16: AANI6L64YCDGIVIO · pith_short_8: AANI6L64

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/AANI6L64YCDGIVIO6VMWDFGGZZ \
  | 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: 001a8f2fdcc08664550ef5596194c6ce626f55b70624cda0c66c53fe3b9306f2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d630f3d76b53d8e6147ae5f83cd78569de1dc8da43cca324f9b5c52153c1f1d6",
    "cross_cats_sorted": [
      "hep-th",
      "physics.class-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2011-09-05T21:50:33Z",
    "title_canon_sha256": "caee680ea762953182013139a6b68959b32ffcef44aa294196068598e4f3f567"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.1019",
    "kind": "arxiv",
    "version": 1
  }
}