Pith Number

pith:RV75RFJN

pith:2009:RV75RFJNVBICVUMYT65Y6TEP5X

not attested not anchored not stored refs pending

On the metallicity gradient of the Galactic disk

A. Piersimoni, A. Pietrinferni, B. Lemasle, D. Laney, F. Caputo, F. Castelli, F. Primas, G. Bono, J. Lub, J. Pritchard, J.W. Pel, M. Groenewegen, M. Romaniello, P. Francois, R. Buonanno, S. Cassisi, S. Leurini, S. Pedicelli

arxiv:0906.3140 v1 · 2009-06-17 · 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{RV75RFJNVBICVUMYT65Y6TEP5X}

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	2026-05-18T02:13:19.487299Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8d7fd8952da8502ad1989fbb8f4c8feddc3c60455fc11ea7d8f5d03b0bc83be3

Aliases

arxiv: 0906.3140 · arxiv_version: 0906.3140v1 · doi: 10.48550/arxiv.0906.3140 · pith_short_12: RV75RFJNVBIC · pith_short_16: RV75RFJNVBICVUMY · pith_short_8: RV75RFJN

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/RV75RFJNVBICVUMYT65Y6TEP5X \
  | 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: 8d7fd8952da8502ad1989fbb8f4c8feddc3c60455fc11ea7d8f5d03b0bc83be3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a2dee725991193fe9654a11b17986bc8beace4ffeb2549b5ec5bfe74fece1b6b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-06-17T10:50:10Z",
    "title_canon_sha256": "f43937f240869a10bf6910f9c4d5f03c0368b6324360f4d1ad083e0dcc2b1c93"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.3140",
    "kind": "arxiv",
    "version": 1
  }
}