Pith Number

pith:6BYMPQOQ

pith:2009:6BYMPQOQJOIA2VOJFC77HFF6TS

not attested not anchored not stored refs pending

9C continued: a radio-source survey at 15 GHz

E. M. Waldram, G. G. Pooley, K. J. B. Grainge, M. L. Davies, P. F. Scott

arxiv:0908.0066 v1 · 2009-08-01 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6BYMPQOQJOIA2VOJFC77HFF6TS}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T02:12:45.500207Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f070c7c1d04b900d55c928bff394be9cb86cbc0a7780dcb45fdab0d0a939dbbd

Aliases

arxiv: 0908.0066 · arxiv_version: 0908.0066v1 · doi: 10.48550/arxiv.0908.0066 · pith_short_12: 6BYMPQOQJOIA · pith_short_16: 6BYMPQOQJOIA2VOJ · pith_short_8: 6BYMPQOQ

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/6BYMPQOQJOIA2VOJFC77HFF6TS \
  | 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: f070c7c1d04b900d55c928bff394be9cb86cbc0a7780dcb45fdab0d0a939dbbd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "be42e724e23c9efb371be3eae4df37b4d2fa564ac98e28d5f54e54feb172e093",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-08-01T10:54:32Z",
    "title_canon_sha256": "2759428a21e4ed815391891f436f6b5deb86e22af2458b129cbdfd6edd76f7ca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.0066",
    "kind": "arxiv",
    "version": 1
  }
}