Pith Number

pith:GTMM6JZG

pith:2007:GTMM6JZGLUBIOKFQR5GVCPDEPQ

not attested not anchored not stored refs pending

The N/O evolution on galaxies:the role played by the star formation history

Angeles I. D\'iaz, Jos\'e M. V\'ilchez, Marta Gavil\'an, Mercedes Moll\'a

arxiv:astro-ph/0701691 v1 · 2007-01-24 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GTMM6JZGLUBIOKFQR5GVCPDEPQ}

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	2026-05-18T01:09:21.730121Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

34d8cf27265d028728b08f4d513c647c2091bf2ae4c9e49834f674c5a9ab567b

Aliases

arxiv: astro-ph/0701691 · arxiv_version: astro-ph/0701691v1 · doi: 10.48550/arxiv.astro-ph/0701691 · pith_short_12: GTMM6JZGLUBI · pith_short_16: GTMM6JZGLUBIOKFQ · pith_short_8: GTMM6JZG

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/GTMM6JZGLUBIOKFQR5GVCPDEPQ \
  | 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: 34d8cf27265d028728b08f4d513c647c2091bf2ae4c9e49834f674c5a9ab567b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8a4f0f820d0eb805f59e21b1924b08f840125ba61fcf69028a52aca77f6f7405",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-01-24T15:16:01Z",
    "title_canon_sha256": "f8dab327304d2d95fd0785bdd18e477bab37e8b543c16f6134e348940df7e836"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0701691",
    "kind": "arxiv",
    "version": 1
  }
}