Pith Number

pith:B2FRNUVM

pith:2018:B2FRNUVMJYWDADBSQIK2KFSLPH

not attested not anchored not stored refs pending

The time evolution of the Milky Way's oxygen abundance gradient

\'A. I. D\'iaz, B. K. Gibson, C. G. Few, M. Moll\'a, O. Cavichia, R. D. D. Costa, W. J. Maciel, Y. Ascasibar

arxiv:1810.09182 v1 · 2018-10-22 · 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{B2FRNUVMJYWDADBSQIK2KFSLPH}

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	2026-05-18T00:01:57.259412Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0e8b16d2ac4e2c300c328215a5164b79cfdc6a1402cdb704034c5b06b636c32b

Aliases

arxiv: 1810.09182 · arxiv_version: 1810.09182v1 · doi: 10.48550/arxiv.1810.09182 · pith_short_12: B2FRNUVMJYWD · pith_short_16: B2FRNUVMJYWDADBS · pith_short_8: B2FRNUVM

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/B2FRNUVMJYWDADBSQIK2KFSLPH \
  | 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: 0e8b16d2ac4e2c300c328215a5164b79cfdc6a1402cdb704034c5b06b636c32b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7e20948491cf4baaecc2a6809243e7f5558919b936d88aadc04a4f2cbd933a5b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-10-22T11:30:31Z",
    "title_canon_sha256": "a2d9642d8aa3bd7b83eaf4db71c161bcf7cd464e0f6c245e2c3c46c34b88b11d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.09182",
    "kind": "arxiv",
    "version": 1
  }
}