Pith Number

pith:OXNM4NPU

pith:2019:OXNM4NPULR4JQE3GDDPRHYT3IL

not attested not anchored not stored refs pending

Evidence against non-gravitational acceleration of 1I/2017 U1 `Oumuamua

J. I. Katz

arxiv:1904.02218 v1 · 2019-03-29 · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OXNM4NPULR4JQE3GDDPRHYT3IL}

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	2026-05-17T23:49:24.194902Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

75dace35f45c7898136618df13e27b42e1c17ce7a43713f5c27967a0bf1c16cb

Aliases

arxiv: 1904.02218 · arxiv_version: 1904.02218v1 · doi: 10.48550/arxiv.1904.02218 · pith_short_12: OXNM4NPULR4J · pith_short_16: OXNM4NPULR4JQE3G · pith_short_8: OXNM4NPU

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/OXNM4NPULR4JQE3GDDPRHYT3IL \
  | 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: 75dace35f45c7898136618df13e27b42e1c17ce7a43713f5c27967a0bf1c16cb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "72d2c0679ce5a421b578be701c79884b4418160ecf2752949fe7a94ccbfe46f4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2019-03-29T20:59:46Z",
    "title_canon_sha256": "413c69a78e9a321136e12fe90d0a38bd75e2bad43b3ca9621e94020e878ff41b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.02218",
    "kind": "arxiv",
    "version": 1
  }
}