Pith Number

pith:33EASZYT

pith:1999:33EASZYTFKZRERT2ENABE23GRV

not attested not anchored not stored refs pending

The radio structures of southern 2-Jy radio sources: new ATCA and VLA radio images

C.N. Tadhunter, M. Villar-Martin, P. Jones, R. Aiudi, R. Morganti, T. Oosterloo

arxiv:astro-ph/9910150 v1 · 1999-10-08 · 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{33EASZYTFKZRERT2ENABE23GRV}

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	2026-07-04T16:11:41.199383Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dec80967132ab312467a2340126b668d4fabf45521435dc9c2a3bf233c5e035e

Aliases

arxiv: astro-ph/9910150 · arxiv_version: astro-ph/9910150v1 · doi: 10.48550/arxiv.astro-ph/9910150 · pith_short_12: 33EASZYTFKZR · pith_short_16: 33EASZYTFKZRERT2 · pith_short_8: 33EASZYT

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/33EASZYTFKZRERT2ENABE23GRV \
  | 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: dec80967132ab312467a2340126b668d4fabf45521435dc9c2a3bf233c5e035e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e26e55e1387a5dcda5c7053eaf14f95ca87da299294792a049b58d455a4c7338",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-10-08T08:52:22Z",
    "title_canon_sha256": "2b792abaf9b1e7fbffdad621483dd633fe639e4ece34c63ce6813ea19a0c2911"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9910150",
    "kind": "arxiv",
    "version": 1
  }
}