Pith Number

pith:PQ2UK2CG

pith:2012:PQ2UK2CGLUKTQMD4QBWAWEETB7

not attested not anchored not stored refs pending

A new scaling relation for HII regions in spiral galaxies: unveiling the true nature of the mass-metallicity relation

A. I. D\'iaz, B. Husemann, D. Mast, F. F. Rosales-Ortega, J. Bland-Hawthorn, J. Iglesias-P\'aramo, J. M. V\'ilchez, S. F. S\'anchez

arxiv:1207.6216 v1 · 2012-07-26 · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PQ2UK2CGLUKTQMD4QBWAWEETB7}

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	2026-05-18T01:56:07.282344Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c354568465d1538307c806c0b10930fed9465dc62609aba21d55a79f435a7ad

Aliases

arxiv: 1207.6216 · arxiv_version: 1207.6216v1 · doi: 10.48550/arxiv.1207.6216 · pith_short_12: PQ2UK2CGLUKT · pith_short_16: PQ2UK2CGLUKTQMD4 · pith_short_8: PQ2UK2CG

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/PQ2UK2CGLUKTQMD4QBWAWEETB7 \
  | 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: 7c354568465d1538307c806c0b10930fed9465dc62609aba21d55a79f435a7ad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c8433a3c50069ebabb31de82d29046003994897e1cb7a3a35aabdc7013e7d65e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-07-26T09:37:57Z",
    "title_canon_sha256": "d6018ee4e37d8216bf64a7b7b4e35bb57eced797f859d452e7e0a356bfe4bb39"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.6216",
    "kind": "arxiv",
    "version": 1
  }
}