Pith Number

pith:GKRSQV6I

pith:2015:GKRSQV6IIGIS5VA2HXRRIT7SZG

not attested not anchored not stored refs pending

NGC 6845: metallicity gradients and star formation in a complex compact group

C. Mendes de Oliveira, D. F. de Mello, D. Olave-Rojas, E. R. Carrasco, S. Scarano Jr, S. Torres-Flores

arxiv:1508.05070 v1 · 2015-08-20 · 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{GKRSQV6IIGIS5VA2HXRRIT7SZG}

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	2026-05-18T01:32:59.141154Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

32a32857c841912ed41a3de3144ff2c9975bc29bf0b6a59d7d2afb080611ab08

Aliases

arxiv: 1508.05070 · arxiv_version: 1508.05070v1 · doi: 10.48550/arxiv.1508.05070 · pith_short_12: GKRSQV6IIGIS · pith_short_16: GKRSQV6IIGIS5VA2 · pith_short_8: GKRSQV6I

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/GKRSQV6IIGIS5VA2HXRRIT7SZG \
  | 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: 32a32857c841912ed41a3de3144ff2c9975bc29bf0b6a59d7d2afb080611ab08

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7d30a1ea899784af7b57ecfda53026461696e572f072bfd2174caab5816527dc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-08-20T18:51:41Z",
    "title_canon_sha256": "85347d837e59e8dd57808bbce06f97a8b44e4208147d756ae8353d65af51d27a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.05070",
    "kind": "arxiv",
    "version": 1
  }
}