Pith Number

pith:XRIJFWNX

pith:2016:XRIJFWNXYJCDWTCXCL2Q2EALYD

not attested not anchored not stored refs pending

The evolution of the radial gradient of Oxygen abundance in spiral galaxies

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

arxiv:1612.03348 v1 · 2016-12-10 · 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{XRIJFWNXYJCDWTCXCL2Q2EALYD}

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	2026-05-18T00:55:19.506258Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bc5092d9b7c2443b4c5712f50d100bc0c03716e9a63883760e45d3f5b53f86c3

Aliases

arxiv: 1612.03348 · arxiv_version: 1612.03348v1 · doi: 10.48550/arxiv.1612.03348 · pith_short_12: XRIJFWNXYJCD · pith_short_16: XRIJFWNXYJCDWTCX · pith_short_8: XRIJFWNX

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/XRIJFWNXYJCDWTCXCL2Q2EALYD \
  | 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: bc5092d9b7c2443b4c5712f50d100bc0c03716e9a63883760e45d3f5b53f86c3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6a88e1c10219481fe833f4695160a1a0ad7f6e4792e24451f29924821e609032",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-12-10T22:15:15Z",
    "title_canon_sha256": "6858585fd011ac46db239b24f1b6f42d9d83e699864df6cdab00d92e378f1ff3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.03348",
    "kind": "arxiv",
    "version": 1
  }
}