pith. the verified trust layer for science. sign in
Pith Number

pith:THAUKRLV

pith:2016:THAUKRLVRX4NL2PLRNVGEONDJQ
not attested not anchored not stored refs pending

Properties of the outer regions of spiral disks: abundances, colors and ages

Angeles I. D\'iaz, \'Angel-R. L\'opez-S\'anchez, Brad K. Gibson, Mercedes Moll\'a, Oscar Cavichia

arxiv:1607.06228 v1 · 2016-07-21 · astro-ph.GA

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{THAUKRLVRX4NL2PLRNVGEONDJQ}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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 2026-05-18T00:47:50.397930Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

99c14545758df8d5e9eb8b6a6239a34c1bcab4cc4605b4fe7a17c4a92f254662

Aliases

arxiv: 1607.06228 · arxiv_version: 1607.06228v1 · doi: 10.48550/arxiv.1607.06228 · pith_short_12: THAUKRLVRX4N · pith_short_16: THAUKRLVRX4NL2PL · pith_short_8: THAUKRLV
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/THAUKRLVRX4NL2PLRNVGEONDJQ \
  | 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: 99c14545758df8d5e9eb8b6a6239a34c1bcab4cc4605b4fe7a17c4a92f254662
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "8cd9ca3b15a2255825f2bb799255e70f8fed60d3f31bc6ce85635b0ac6087f8f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-07-21T08:28:36Z",
    "title_canon_sha256": "b22900de57499f7ca40dca582083a04aa4695cfd31492a769b01e23114abd2bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.06228",
    "kind": "arxiv",
    "version": 1
  }
}