Pith Number

pith:TL63CICI

pith:2015:TL63CICIMU5DVB3CXFG3DP44KX

not attested not anchored not stored refs pending

Chemical evolution of the inner 2 degrees of the Milky Way bulge: [alpha/Fe] trends and metallicity gradients

F. Matteucci, M. Schultheis, N. Ryde, R. M. Rich, S. Uttenthaler, V. Grieco

arxiv:1510.02622 v1 · 2015-10-09 · 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{TL63CICIMU5DVB3CXFG3DP44KX}

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	2026-05-18T01:23:55.072331Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9afdb12048653a3a8762b94db1bf9c55f4331be546a7473713b9fb7e0509ccf2

Aliases

arxiv: 1510.02622 · arxiv_version: 1510.02622v1 · doi: 10.48550/arxiv.1510.02622 · pith_short_12: TL63CICIMU5D · pith_short_16: TL63CICIMU5DVB3C · pith_short_8: TL63CICI

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/TL63CICIMU5DVB3CXFG3DP44KX \
  | 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: 9afdb12048653a3a8762b94db1bf9c55f4331be546a7473713b9fb7e0509ccf2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "185887bf89fc994646a656d809f6cfdfcc45b52092d3348b19bd37e34b693a38",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-10-09T10:43:40Z",
    "title_canon_sha256": "5825ab9545723a1b698380e59975e038f52fbb70a139dfe133a141d915dfdfc8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.02622",
    "kind": "arxiv",
    "version": 1
  }
}