Pith Number

pith:AXSPLT7C

pith:2016:AXSPLT7CYTCOASB4L4WSJTGSLA

not attested not anchored not stored refs pending

Exorcising the Ostrogradsky ghost in coupled systems

Diederik Roest, Remko Klein

arxiv:1604.01719 v3 · 2016-04-06 · hep-th · astro-ph.CO · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AXSPLT7CYTCOASB4L4WSJTGSLA}

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	2026-05-18T01:04:37.382802Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

05e4f5cfe2c4c4e0483c5f2d24ccd25821f7325e6e055d5608dbceae2dfe8d26

Aliases

arxiv: 1604.01719 · arxiv_version: 1604.01719v3 · doi: 10.48550/arxiv.1604.01719 · pith_short_12: AXSPLT7CYTCO · pith_short_16: AXSPLT7CYTCOASB4 · pith_short_8: AXSPLT7C

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/AXSPLT7CYTCOASB4L4WSJTGSLA \
  | 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: 05e4f5cfe2c4c4e0483c5f2d24ccd25821f7325e6e055d5608dbceae2dfe8d26

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c542a9acbe20de211b1f0a3eb892dceb8d290eec1ffdcfc951b08eff0d558a6",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2016-04-06T18:38:53Z",
    "title_canon_sha256": "cdb4688b71cb55e2f845875cb5bcbc4105679e0160e7882c6b75f552e84b3760"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.01719",
    "kind": "arxiv",
    "version": 3
  }
}