Pith Number

pith:EI7WYAX4

pith:2019:EI7WYAX4W2264A5FSHTT3GB7EG

not attested not anchored not stored refs pending

A common origin for the circumnuclear disc and the nearby molecular clouds in the Galactic Centre

Alessandro Alberto Trani, Alessandro Ballone, Michela Mapelli

arxiv:1908.00549 v1 · 2019-08-01 · 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{EI7WYAX4W2264A5FSHTT3GB7EG}

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	2026-07-04T23:55:48.552068Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

223f6c02fcb6b5ee03a591e73d983f218ae92e5229fa6989c2f56e2166900eb9

Aliases

arxiv: 1908.00549 · arxiv_version: 1908.00549v1 · doi: 10.48550/arxiv.1908.00549 · pith_short_12: EI7WYAX4W226 · pith_short_16: EI7WYAX4W2264A5F · pith_short_8: EI7WYAX4

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/EI7WYAX4W2264A5FSHTT3GB7EG \
  | 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: 223f6c02fcb6b5ee03a591e73d983f218ae92e5229fa6989c2f56e2166900eb9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aec8dbccafef75f975f0a643a1e17d0ddd3e4ba52d4c715a1c860f2bcb5cbe43",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-08-01T18:00:01Z",
    "title_canon_sha256": "40557a3e7f72794f70946a1d07c764898a78a1207da9f16d0c2ef3933b8b2c12"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.00549",
    "kind": "arxiv",
    "version": 1
  }
}