Pith Number

pith:WEPLKD4T

pith:2016:WEPLKD4TF34FWNBMUORHRXS7WG

not attested not anchored not stored refs pending

URAT Parallax Catalog (UPC)

Charlie Finch, Norbert Zacharias

arxiv:1604.06739 v1 · 2016-04-21 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WEPLKD4TF34FWNBMUORHRXS7WG}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:16:28.272241Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b11eb50f932ef85b342ca3a278de5fb1a7624708f67d9cebe0c99ef6db7c14e1

Aliases

arxiv: 1604.06739 · arxiv_version: 1604.06739v1 · doi: 10.48550/arxiv.1604.06739 · pith_short_12: WEPLKD4TF34F · pith_short_16: WEPLKD4TF34FWNBM · pith_short_8: WEPLKD4T

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/WEPLKD4TF34FWNBMUORHRXS7WG \
  | 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: b11eb50f932ef85b342ca3a278de5fb1a7624708f67d9cebe0c99ef6db7c14e1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6be9e8994c49b3852a0d06dcb021b1fcc6e81124327c343129c2e97ef6e1dcd9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2016-04-21T17:28:10Z",
    "title_canon_sha256": "4457ed5cfe07e38f47be396ca2169754acc0d0ebb2862c26e6bfa5c8597dd2cb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.06739",
    "kind": "arxiv",
    "version": 1
  }
}