Pith Number

pith:ZEP2TQ4F

pith:2018:ZEP2TQ4FPDADI2HK6KQ6DWCSPI

not attested not anchored not stored refs pending

Italian center for Astronomical Archives publishing solution: modular and distributed

Marco Molinaro, Nicola F. Calabria, Riccardo Smareglia, Robert Butora, Sonia Zorba

arxiv:1805.08040 v1 · 2018-05-21 · astro-ph.IM · cs.DL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZEP2TQ4FPDADI2HK6KQ6DWCSPI}

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	2026-05-18T00:10:54.195065Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c91fa9c38578c03468eaf2a1e1d8527a3fed3519b781bc89ea7f8288b8004586

Aliases

arxiv: 1805.08040 · arxiv_version: 1805.08040v1 · doi: 10.48550/arxiv.1805.08040 · pith_short_12: ZEP2TQ4FPDAD · pith_short_16: ZEP2TQ4FPDADI2HK · pith_short_8: ZEP2TQ4F

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/ZEP2TQ4FPDADI2HK6KQ6DWCSPI \
  | 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: c91fa9c38578c03468eaf2a1e1d8527a3fed3519b781bc89ea7f8288b8004586

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7942a9f30225de8e6d6b4b3f03fffe2af3410833db37ac7b1bb1d410c23f42bc",
    "cross_cats_sorted": [
      "cs.DL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2018-05-21T13:27:31Z",
    "title_canon_sha256": "065eb6d58973e3ec05bb73b42b3682a4edd93f73cda62754bc526ecbed2b0458"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.08040",
    "kind": "arxiv",
    "version": 1
  }
}