Pith Number

pith:CB4N2HIP

pith:2018:CB4N2HIPWHLPLZYFHMZYJYU3QY

not attested not anchored not stored refs pending

Astrometric Interferometry

Julien Woillez, Michael J. Ireland

arxiv:1812.02926 v1 · 2018-12-07 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CB4N2HIPWHLPLZYFHMZYJYU3QY}

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	2026-05-17T23:58:51.383086Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1078dd1d0fb1d6f5e7053b3384e29b862a16a798ffed26e919bc1d41366d85fe

Aliases

arxiv: 1812.02926 · arxiv_version: 1812.02926v1 · doi: 10.48550/arxiv.1812.02926 · pith_short_12: CB4N2HIPWHLP · pith_short_16: CB4N2HIPWHLPLZYF · pith_short_8: CB4N2HIP

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/CB4N2HIPWHLPLZYFHMZYJYU3QY \
  | 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: 1078dd1d0fb1d6f5e7053b3384e29b862a16a798ffed26e919bc1d41366d85fe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9f73950a89860102532f235b7868be9d41c356a01c8ce659364f752c625d1fc4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2018-12-07T06:24:25Z",
    "title_canon_sha256": "d82e02df2b92019b4ad5e2b21988bb81676e9b8b2b04f0dc91c22c95d284e3e3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.02926",
    "kind": "arxiv",
    "version": 1
  }
}