Pith Number

pith:GJRFX4SI

pith:2019:GJRFX4SIRL6LTKZRO7NKFMHQJP

not attested not anchored not stored refs pending

Sardinia Radio Telescope observations of Local Group dwarf galaxies -- I. The cases of NGC6822, IC1613, and WLM

A. Brunthaler, A. Melis, A. Tarchi, A. Trois, C. Henkel, G. Surcis, J. Darling, K. M. Menten, M. Murgia, M. Pawlowski, P. Castangia, R. Concu, S. Casu

arxiv:1912.02454 v1 · 2019-12-05 · 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{GJRFX4SIRL6LTKZRO7NKFMHQJP}

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	2026-07-05T00:33:23.628479Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

32625bf2488afcb9ab3177daa2b0f04bf052e0b189478d1e939221f0f24a6fe3

Aliases

arxiv: 1912.02454 · arxiv_version: 1912.02454v1 · doi: 10.48550/arxiv.1912.02454 · pith_short_12: GJRFX4SIRL6L · pith_short_16: GJRFX4SIRL6LTKZR · pith_short_8: GJRFX4SI

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/GJRFX4SIRL6LTKZRO7NKFMHQJP \
  | 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: 32625bf2488afcb9ab3177daa2b0f04bf052e0b189478d1e939221f0f24a6fe3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d9113da125a1e3f7a4be92cbef436483e6527ad85363c91c88bde5bcf9e26ac4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-12-05T09:26:20Z",
    "title_canon_sha256": "4f6cb0696083d1c102e536d1d7e6ddc622cb7f9a65abd362af72fa8335ebd839"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.02454",
    "kind": "arxiv",
    "version": 1
  }
}