Pith Number

pith:7QD5GA6G

pith:2004:7QD5GA6GTE4YI27DUZPYQBTQRA

not attested not anchored not stored refs pending

Modelling the red halos of blue compact galaxies

E. Zackrisson, G. Ostlin, L. Mattsson, N. Bergvall, T. Marquart

arxiv:astro-ph/0411537 v1 · 2004-11-18 · 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{7QD5GA6GTE4YI27DUZPYQBTQRA}

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	2026-07-04T14:13:54.978037Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc07d303c69939846be3a65f880670883a3dba0a764b06496a1aac1fec68b394

Aliases

arxiv: astro-ph/0411537 · arxiv_version: astro-ph/0411537v1 · doi: 10.48550/arxiv.astro-ph/0411537 · pith_short_12: 7QD5GA6GTE4Y · pith_short_16: 7QD5GA6GTE4YI27D · pith_short_8: 7QD5GA6G

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/7QD5GA6GTE4YI27DUZPYQBTQRA \
  | 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: fc07d303c69939846be3a65f880670883a3dba0a764b06496a1aac1fec68b394

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f00374846aef2df0237a24b0257f62fb410a2506c269b85887d06f72ca7f95ad",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-11-18T13:22:54Z",
    "title_canon_sha256": "6eee2257cb62bbf2ed4e1a389fa789fc4e2ce18b7274ced22ce062a8a058a17c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0411537",
    "kind": "arxiv",
    "version": 1
  }
}