Pith Number

pith:HBBKNA6X

pith:2018:HBBKNA6XVBZD2JEPJJX7IZC3EW

not attested not anchored not stored refs pending

Testing the universality of free fall by tracking a pulsar in a stellar triple system

Adam T. Deller, Anne M. Archibald, David L. Kaplan, Duncan R. Lorimer, Ingrid H. Stairs, Jason W. T. Hessels, Nina V. Gusinskaia, Ryan S. Lynch, Scott M. Ransom

arxiv:1807.02059 v1 · 2018-07-05 · astro-ph.HE · 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{HBBKNA6XVBZD2JEPJJX7IZC3EW}

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	2026-05-18T00:11:24.328823Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3842a683d7a8723d248f4a6ff4645b25b33cccbcb28ecc59a1ece830d8b24544

Aliases

arxiv: 1807.02059 · arxiv_version: 1807.02059v1 · doi: 10.48550/arxiv.1807.02059 · pith_short_12: HBBKNA6XVBZD · pith_short_16: HBBKNA6XVBZD2JEP · pith_short_8: HBBKNA6X

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/HBBKNA6XVBZD2JEPJJX7IZC3EW \
  | 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: 3842a683d7a8723d248f4a6ff4645b25b33cccbcb28ecc59a1ece830d8b24544

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "86747448e6ef08e8335fc70b48864b26a9f07780a5e31137db7114362ba0b679",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2018-07-05T15:41:29Z",
    "title_canon_sha256": "edc977c11ccdce88856007c7f9aadc1d2bb8cbbab5a7eddd04fdf07055c607a8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.02059",
    "kind": "arxiv",
    "version": 1
  }
}