Pith Number

pith:ZSWNXBVS

pith:2009:ZSWNXBVSBPTQXJ56JGK253KU3B

not attested not anchored not stored refs pending

On the compact HII galaxy UM 408 as seen by GMOS-IFU: Physical conditions

2), (2)Instituto de Astrofisica de Canarias, 3), (3)Dept. of Astronomy, (4)Gemini Observatory/AURA, (5)Observatorio do Valongo UFRJ, (6)Instituto Nacional de Astrofisica Optica y Electronica, Brazil, Casiana Munoz-Tunon (2), Chile, Eduardo Telles (1, Eleazar R. Carrasco (4), Francois Cuisinier (5), Guillermo Tenorio-Tagle (6) ((1)Observatorio Nacional, Mexico), Patricio Lagos (1, Southern Operations Center, Spain, University of Virginia, USA

arxiv:0904.1966 v1 · 2009-04-13 · 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{ZSWNXBVSBPTQXJ56JGK253KU3B}

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	2026-05-18T02:14:06.218292Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ccacdb86b20be70ba7be4995aeed54d859314b9b6270cc2de59040aeed85f281

Aliases

arxiv: 0904.1966 · arxiv_version: 0904.1966v1 · doi: 10.48550/arxiv.0904.1966 · pith_short_12: ZSWNXBVSBPTQ · pith_short_16: ZSWNXBVSBPTQXJ56 · pith_short_8: ZSWNXBVS

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/ZSWNXBVSBPTQXJ56JGK253KU3B \
  | 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: ccacdb86b20be70ba7be4995aeed54d859314b9b6270cc2de59040aeed85f281

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "23b8edde82d600fb0483d125312fb1af3521a55ecf02b7d79e198f7b350016d0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-04-13T16:45:16Z",
    "title_canon_sha256": "7a9f362e7b863f0a7d942d5608c20c26ce724fd5725d12fcc2dbd2a3607b5382"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.1966",
    "kind": "arxiv",
    "version": 1
  }
}