Pith Number

pith:C2MZXO4J

pith:2017:C2MZXO4JY5NNX5NNFMMBFOPEED

not attested not anchored not stored refs pending

Simple demonstration experiments for astronomical parallax

Markus P\"ossel

arxiv:1706.06555 v1 · 2017-06-20 · physics.ed-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{C2MZXO4JY5NNX5NNFMMBFOPEED}

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	2026-05-18T00:42:02.933476Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

16999bbb89c75adbf5ad2b1812b9e420cc0e2139591458339908d2db526f3f39

Aliases

arxiv: 1706.06555 · arxiv_version: 1706.06555v1 · doi: 10.48550/arxiv.1706.06555 · pith_short_12: C2MZXO4JY5NN · pith_short_16: C2MZXO4JY5NNX5NN · pith_short_8: C2MZXO4J

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/C2MZXO4JY5NNX5NNFMMBFOPEED \
  | 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: 16999bbb89c75adbf5ad2b1812b9e420cc0e2139591458339908d2db526f3f39

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a4e72ff7873adffaab110e8e64908dc1f610d1c8072182d3864e5ceec4a101d6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2017-06-20T17:12:58Z",
    "title_canon_sha256": "c38fe77ab3d9c42d8c605fd3009937dba6e5879e2b6301f51b7bf7b6ea18dac0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.06555",
    "kind": "arxiv",
    "version": 1
  }
}