Pith Number

pith:6FQ4VFYH

pith:2010:6FQ4VFYH5FJEMLLZ4TPNPHYIO5

not attested not anchored not stored refs pending

Spectroscopic observations of a sample of dwarf spiral galaxies. II- Abundance gradients

A.M. Hidalgo-Gamez, D. Ramirez-Fuentes, J.J. Gonzalez

arxiv:1011.1013 v1 · 2010-11-03 · 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{6FQ4VFYH5FJEMLLZ4TPNPHYIO5}

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	2026-05-18T04:37:09.777897Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f161ca9707e952462d79e4ded79f087741716be03f5da9844c3f4fb41c3e5c1b

Aliases

arxiv: 1011.1013 · arxiv_version: 1011.1013v1 · doi: 10.48550/arxiv.1011.1013 · pith_short_12: 6FQ4VFYH5FJE · pith_short_16: 6FQ4VFYH5FJEMLLZ · pith_short_8: 6FQ4VFYH

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/6FQ4VFYH5FJEMLLZ4TPNPHYIO5 \
  | 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: f161ca9707e952462d79e4ded79f087741716be03f5da9844c3f4fb41c3e5c1b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b327279412c54096fb50da17b0e73e231023a3142b2dba56f72054c26ddfe253",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-11-03T21:32:56Z",
    "title_canon_sha256": "8b1f3cf98e6ff5ad53d50e6a6f0b2a4049be3d4c2166785478580b1f28a4f3da"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1011.1013",
    "kind": "arxiv",
    "version": 1
  }
}