Pith Number

pith:5ZRWBXS6

pith:2009:5ZRWBXS62L2MM3KVB7L375KVSO

not attested not anchored not stored refs pending

Metallicity Gradients at Large Galactocentric Radii Using the Near-infrared Calcium Triplet

Caroline Foster, Duncan A. Forbes, Jean P. Brodie, Max Spolaor, Philip F. Hopkins, Robert N. Proctor

arxiv:0908.3705 v1 · 2009-08-25 · astro-ph.GA · 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{5ZRWBXS62L2MM3KVB7L375KVSO}

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	2026-05-18T02:12:22.987107Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ee6360de5ed2f4c66d550fd7bff555939b91a792dacd3e51cc43a1b537caa4c9

Aliases

arxiv: 0908.3705 · arxiv_version: 0908.3705v1 · doi: 10.48550/arxiv.0908.3705 · pith_short_12: 5ZRWBXS62L2M · pith_short_16: 5ZRWBXS62L2MM3KV · pith_short_8: 5ZRWBXS6

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/5ZRWBXS62L2MM3KVB7L375KVSO \
  | 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: ee6360de5ed2f4c66d550fd7bff555939b91a792dacd3e51cc43a1b537caa4c9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4dc4ee4dfdb7917e8cf2d26513cc85927c57faac8667507ca72fdb3261085aa4",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-08-25T23:15:57Z",
    "title_canon_sha256": "2518f60465f735855a0be46e91cf505d73858e9f8c8463f0e893f35cc19e68fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.3705",
    "kind": "arxiv",
    "version": 1
  }
}