Pith Number

pith:FHKNUK5Q

pith:2015:FHKNUK5QN5JRUCYX5L6ELQLRMD

not attested not anchored not stored refs pending

Chemical evolution of the Galactic Center

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

arxiv:1503.08949 v1 · 2015-03-31 · 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{FHKNUK5QN5JRUCYX5L6ELQLRMD}

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	2026-05-18T01:40:49.444077Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

29d4da2bb06f531a0b17eafc45c17160cc01135122db93a1c4930a11448292d7

Aliases

arxiv: 1503.08949 · arxiv_version: 1503.08949v1 · doi: 10.48550/arxiv.1503.08949 · pith_short_12: FHKNUK5QN5JR · pith_short_16: FHKNUK5QN5JRUCYX · pith_short_8: FHKNUK5Q

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/FHKNUK5QN5JRUCYX5L6ELQLRMD \
  | 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: 29d4da2bb06f531a0b17eafc45c17160cc01135122db93a1c4930a11448292d7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3e6d68c0a7446c14724b907d38865828c97e27412e9af77b83cd8dfacccf9fa0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-03-31T08:39:11Z",
    "title_canon_sha256": "341e863b7a33b813413ca289bb412ba688b40cf0613738ea144ce84a375b15af"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.08949",
    "kind": "arxiv",
    "version": 1
  }
}