Pith Number

pith:G7RHQVBK

pith:2009:G7RHQVBKL4PF47G4VD4NMUBBUJ

not attested not anchored not stored refs pending

The RMS Survey: H2O masers towards a sample of southern hemisphere massive YSO candidates and ultra compact HII regions

B. Davies (Leeds), J. C. Mottram (Exeter), J. J. Stead (Leeds), J. S. Urquhart (ATNF), M. G. Hoare (Leeds), P. R. Brooks (Leeds), R. D. Oudmaijer (Leeds), S. L. Lumsden (Leeds), T. J T. Moore (Liverpool John Moores)

arxiv:0909.1720 v1 · 2009-09-09 · 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{G7RHQVBKL4PF47G4VD4NMUBBUJ}

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	2026-05-18T02:11:58.030639Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

37e278542a5f1e5e7cdca8f8d65021a2400e99c7e5a30842db3d292dbf3c5efd

Aliases

arxiv: 0909.1720 · arxiv_version: 0909.1720v1 · doi: 10.48550/arxiv.0909.1720 · pith_short_12: G7RHQVBKL4PF · pith_short_16: G7RHQVBKL4PF47G4 · pith_short_8: G7RHQVBK

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/G7RHQVBKL4PF47G4VD4NMUBBUJ \
  | 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: 37e278542a5f1e5e7cdca8f8d65021a2400e99c7e5a30842db3d292dbf3c5efd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6f90a74c4d66d25c535dc7aa62f60fb47284a12eeaa4de7098362f1979f0af3d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-09-09T14:56:29Z",
    "title_canon_sha256": "bbcce9f443d530940b5dd11049018076d05d95c208e9df6562a064ee95568a44"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.1720",
    "kind": "arxiv",
    "version": 1
  }
}