Pith Number

pith:WRNP3GIK

pith:2009:WRNP3GIKKZAK2UNCHZVTIAGOYD

not attested not anchored not stored refs pending

The Outer Disk of the Milky Way Seen in 21-cm Absorption

A. R. Taylor, B.M. Gaensler, Dain Kavars, Jeroen Stil, John M. Dickey, Marijke Haverkorn, N. M. McClure-Griffiths, Simon Strasser

arxiv:0901.0968 v1 · 2009-01-08 · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WRNP3GIKKZAK2UNCHZVTIAGOYD}

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	2026-05-18T04:29:24.098850Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b45afd990a5640ad51a23e6b3400cec0d624daebe2de61720d4893db060bbcea

Aliases

arxiv: 0901.0968 · arxiv_version: 0901.0968v1 · doi: 10.48550/arxiv.0901.0968 · pith_short_12: WRNP3GIKKZAK · pith_short_16: WRNP3GIKKZAK2UNC · pith_short_8: WRNP3GIK

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/WRNP3GIKKZAK2UNCHZVTIAGOYD \
  | 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: b45afd990a5640ad51a23e6b3400cec0d624daebe2de61720d4893db060bbcea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "78759050efd3cd77ae8452fbec0b284daba8c2d8b7ecfac43f188e50d721c38c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-01-08T03:41:07Z",
    "title_canon_sha256": "b1db58e71837632e080046c333ea0737cd790c7556fcea4d625a1e987bb54d9f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.0968",
    "kind": "arxiv",
    "version": 1
  }
}