Pith Number

pith:7AHKYIJJ

pith:2009:7AHKYIJJGFJT7EECE36GJXBTS2

not attested not anchored not stored refs pending

15 GHz Monitoring of Gamma-ray Blazars with the OVRO 40 Meter Telescope in Support of Fermi

(2) Department of Physics/KIPAC, (3) Max-Planck-Institut-f\"ur-Radioastronomie, (4) Astrophysics Group, (5) Department of Physics, A. C. S. Readhead (1), Astronomy, Cavendish Laboratory, E. Angelakis (3), G. B. Taylor (5) ((1) California Institute of Technology, J. A. Zensus (3), J. L. Richards (1), K. Grainge (4), L. Fuhrmann (3), M. A. Stevenson (1), M. S. Shaw (2), Owens Valley Radio Observatory, R. W. Romani (2), S. E. Healey (2), Stanford University, T. J. Pearson (1), University of Cambridge, University of New Mexico), V. Pavlidou (1), W. Max-Moerbeck (1)

arxiv:0912.3780 v2 · 2009-12-18 · 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{7AHKYIJJGFJT7EECE36GJXBTS2}

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	2026-05-18T02:10:15.469257Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f80eac212931533f908226fc64dc339687417134e6df25d01b94af68e39626e5

Aliases

arxiv: 0912.3780 · arxiv_version: 0912.3780v2 · doi: 10.48550/arxiv.0912.3780 · pith_short_12: 7AHKYIJJGFJT · pith_short_16: 7AHKYIJJGFJT7EEC · pith_short_8: 7AHKYIJJ

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/7AHKYIJJGFJT7EECE36GJXBTS2 \
  | 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: f80eac212931533f908226fc64dc339687417134e6df25d01b94af68e39626e5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "736699ee555959653cf3e0bf8c4cd17e3a5c3c5de2fab57f46492f08ae61e94f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-12-18T20:08:47Z",
    "title_canon_sha256": "c1231b2fa0b0a30e3e35ac3904c096b494e3adadad1e7c12e05d4b6f9fa054f0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.3780",
    "kind": "arxiv",
    "version": 2
  }
}