Pith Number

pith:5OPOPIYG

pith:2018:5OPOPIYGE3C3VETZYJ6BD5IFZ5

not attested not anchored not stored refs pending

An ngVLA Wide Area AGN Survey

Allison Kirkpatrick, Isabella Prandoni, Kirsten Hall, Kristina Nyland, Mark Lacy

arxiv:1809.01199 v1 · 2018-09-04 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5OPOPIYGE3C3VETZYJ6BD5IFZ5}

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	2026-05-18T00:06:31.398148Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eb9ee7a30626c5ba9279c27c11f505cf48a2c2e8d89752e26d553aecee233a6a

Aliases

arxiv: 1809.01199 · arxiv_version: 1809.01199v1 · doi: 10.48550/arxiv.1809.01199 · pith_short_12: 5OPOPIYGE3C3 · pith_short_16: 5OPOPIYGE3C3VETZ · pith_short_8: 5OPOPIYG

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/5OPOPIYGE3C3VETZYJ6BD5IFZ5 \
  | 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: eb9ee7a30626c5ba9279c27c11f505cf48a2c2e8d89752e26d553aecee233a6a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ccac4ab26c75bf657770f3e01999a849cd5f5d8f284c0b5043f2675687dafb34",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-09-04T19:01:04Z",
    "title_canon_sha256": "3660d353adac91ee379043b08bebec455537f74b55ff9b32504cfaedbc9d6e0e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.01199",
    "kind": "arxiv",
    "version": 1
  }
}