Pith Number

pith:OOBJHLLQ

pith:2014:OOBJHLLQYIY37RZSGEEY4B2YWB

not attested not anchored not stored refs pending

Imprints of galaxy evolution on H ii regions Memory of the past uncovered by the CALIFA survey

A. de Lorenzo-C\'aceres, A. D\'iaz, A. Monreal-Ibero, A. Pasquali, A. R. Lopez-Sanchez, B. Ziegler, C. Kehrig, D. Bomans, D. Mast, D. Miralles-Caballero, E. Perez, F. F. Rosales-Ortega, G. van de Ven, J. Bland-Hawthorn, J. Iglesias-P\'aramo, J. Mendez-Abreu, L. Galbany, L. S\'anchez-Menguiano, L. Wisotzki, M.A. Mendoza, M. Moll\'a, M. M. Roth, P. Papaderos, R. A. Marino, R. Garc\'ia-Benito, R. Gonz\'alez Delgado, S. Bekeraite, S. Ellis, S. F. Sanchez, the CALIFA collaboration

arxiv:1409.8293 v2 · 2014-09-29 · 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{OOBJHLLQYIY37RZSGEEY4B2YWB}

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	2026-05-18T02:28:40.385199Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

738293ad70c231bfc73231098e0758b04732cc8cd96b0dbbb89ac71e07b7874c

Aliases

arxiv: 1409.8293 · arxiv_version: 1409.8293v2 · doi: 10.48550/arxiv.1409.8293 · pith_short_12: OOBJHLLQYIY3 · pith_short_16: OOBJHLLQYIY37RZS · pith_short_8: OOBJHLLQ

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/OOBJHLLQYIY37RZSGEEY4B2YWB \
  | 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: 738293ad70c231bfc73231098e0758b04732cc8cd96b0dbbb89ac71e07b7874c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a07456e1cbdf0e4b2b31853145b99cc3b4d01942ba2f19a5df48b5dd22760006",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2014-09-29T20:00:16Z",
    "title_canon_sha256": "41969cb127047435762f535c51f2793654547373b643e70096d04971dcd86fca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.8293",
    "kind": "arxiv",
    "version": 2
  }
}