Pith Number

pith:L5KN6R4H

pith:2003:L5KN6R4HZ333BOSATRD5FTIAXB

not attested not anchored not stored refs pending

Emission line studies of young radio sources

2), (2) Kapteyn Institute, (3) ASTRON), C. N. Tadhunter (1), Groningen, J. Holt (1, R. Morganti (3) ((1) Sheffield

arxiv:astro-ph/0301642 v1 · 2003-01-31 · 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{L5KN6R4HZ333BOSATRD5FTIAXB}

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	2026-07-04T16:36:25.301841Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5f54df4787cef7b0ba409c47d2cd00b86e732a8caa15b514ffbc10f63d517713

Aliases

arxiv: astro-ph/0301642 · arxiv_version: astro-ph/0301642v1 · doi: 10.48550/arxiv.astro-ph/0301642 · pith_short_12: L5KN6R4HZ333 · pith_short_16: L5KN6R4HZ333BOSA · pith_short_8: L5KN6R4H

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/L5KN6R4HZ333BOSATRD5FTIAXB \
  | 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: 5f54df4787cef7b0ba409c47d2cd00b86e732a8caa15b514ffbc10f63d517713

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "61051d795a59f1dfbecf834e784a010402bef2c0cd5f507f5f023f911b1fb9e0",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-01-31T13:27:12Z",
    "title_canon_sha256": "ce2018d00e597185957c0daa986e1686bb1bd18cc8b9147d478979a629f34e8f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0301642",
    "kind": "arxiv",
    "version": 1
  }
}