Pith Number

pith:6VRKVB4W

pith:1996:6VRKVB4WIEKMCYNMK6UTSY3AFM

not attested not anchored not stored refs pending

The V R I colours of HII galaxies

Eduardo Telles (Sao Paulo), Roberto Terlevich (RGO)

arxiv:astro-ph/9610136 v1 · 1996-10-17 · 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{6VRKVB4WIEKMCYNMK6UTSY3AFM}

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	2026-05-18T01:40:19.068130Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f562aa87964114c161ac57a93963602b1223598b3944009f766742310aa14b3a

Aliases

arxiv: astro-ph/9610136 · arxiv_version: astro-ph/9610136v1 · doi: 10.48550/arxiv.astro-ph/9610136 · pith_short_12: 6VRKVB4WIEKM · pith_short_16: 6VRKVB4WIEKMCYNM · pith_short_8: 6VRKVB4W

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/6VRKVB4WIEKMCYNMK6UTSY3AFM \
  | 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: f562aa87964114c161ac57a93963602b1223598b3944009f766742310aa14b3a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "90c0adf8502b1e442806540e0232dd7fefc986d93e100fcf1bae3d4fe4e5e9b2",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1996-10-17T15:44:19Z",
    "title_canon_sha256": "e2e61ea6c71d614b4017622edcf6b889e602153a2f3652dee9b6b70b490199df"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9610136",
    "kind": "arxiv",
    "version": 1
  }
}