Pith Number

pith:6YDDIRY2

pith:2019:6YDDIRY2DKLM3DNFWEXNXMQGIG

not attested not anchored not stored refs pending

The Young Stellar Population of the metal-poor galaxy NGC 6822

Alec S. Hirschauer, Megan Reiter, Michael J. Sharp, M. Meixner, Olivia C. Jones, Sundar Srinivasan

arxiv:1909.03884 v1 · 2019-09-09 · astro-ph.GA · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6YDDIRY2DKLM3DNFWEXNXMQGIG}

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	2026-07-05T00:06:58.227320Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f60634471a1a96cd8da5b12edbb20641b3ed43aa1d688a7aa984608a35dc2486

Aliases

arxiv: 1909.03884 · arxiv_version: 1909.03884v1 · doi: 10.48550/arxiv.1909.03884 · pith_short_12: 6YDDIRY2DKLM · pith_short_16: 6YDDIRY2DKLM3DNF · pith_short_8: 6YDDIRY2

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/6YDDIRY2DKLM3DNFWEXNXMQGIG \
  | 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: f60634471a1a96cd8da5b12edbb20641b3ed43aa1d688a7aa984608a35dc2486

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9d84a4a7d89eb03d68e66956a99267c7a3a58d7a95ec37182ac48545a99803db",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-09-09T14:27:52Z",
    "title_canon_sha256": "0d456dbf64e0084fd69d4035d3f27582237f02d5ea1a898217a72d41d525a1a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.03884",
    "kind": "arxiv",
    "version": 1
  }
}