Pith Number

pith:7X2CIEKN

pith:2009:7X2CIEKNSYBPZQ3TZLC2SFFRHV

not attested not anchored not stored refs pending

Radio Weak Gravitational Lensing with VLA and MERLIN

B. Hoyle, D. J. Bacon, P. Patel, R. J. Beswick, T. W. B. Muxlow

arxiv:0907.5156 v2 · 2009-07-29 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7X2CIEKNSYBPZQ3TZLC2SFFRHV}

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	2026-05-18T02:12:46.495447Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fdf424114d9602fcc373cac5a914b13d69e3c25539bbc33c08668b9fc279eeef

Aliases

arxiv: 0907.5156 · arxiv_version: 0907.5156v2 · doi: 10.48550/arxiv.0907.5156 · pith_short_12: 7X2CIEKNSYBP · pith_short_16: 7X2CIEKNSYBPZQ3T · pith_short_8: 7X2CIEKN

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/7X2CIEKNSYBPZQ3TZLC2SFFRHV \
  | 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: fdf424114d9602fcc373cac5a914b13d69e3c25539bbc33c08668b9fc279eeef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6b0577c0bec82676928e92de8eb6980d874424fb6e5ff40f6901357943cebdd7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-07-29T16:13:00Z",
    "title_canon_sha256": "3bad7fc889914261766be94e9e8974c588f8d76c38f50c123a42d4e91cb1c71f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.5156",
    "kind": "arxiv",
    "version": 2
  }
}