Pith Number

pith:34ZK5S4A

pith:2011:34ZK5S4A4TPWKYTOTGSEPBIOR6

not attested not anchored not stored refs pending

Spectroscopic versus Photometric Metallicities: Milky Way Dwarf Spheroidal Companions as a Test Case

(2) University of Leicester, 3) ((1) ARI, (3) LSW, Andreas Koch (2, Eva K. Grebel (1), Sophia Lianou (1), University of Heidelberg, University of Heidelberg)

arxiv:1105.6037 v1 · 2011-05-30 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{34ZK5S4A4TPWKYTOTGSEPBIOR6}

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	2026-05-18T04:20:23.018058Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

df32aecb80e4df65626e99a447850e8fb1bf4455bb60e6d4dd6cb1e27165a4ad

Aliases

arxiv: 1105.6037 · arxiv_version: 1105.6037v1 · doi: 10.48550/arxiv.1105.6037 · pith_short_12: 34ZK5S4A4TPW · pith_short_16: 34ZK5S4A4TPWKYTO · pith_short_8: 34ZK5S4A

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/34ZK5S4A4TPWKYTOTGSEPBIOR6 \
  | 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: df32aecb80e4df65626e99a447850e8fb1bf4455bb60e6d4dd6cb1e27165a4ad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "efe6e1fcb8212d7e564cd1f9203f269cd54657f94d4b8a6ba4aafdd942b08dc1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-05-30T16:41:58Z",
    "title_canon_sha256": "ffec6a9e3af92cbf2e7053794ac83027913860b1e74fc802462f66949cba5ebf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.6037",
    "kind": "arxiv",
    "version": 1
  }
}