Pith Number

pith:JKR6ZR2E

pith:2009:JKR6ZR2EBXNK4TCCSTBALNVYMU

not attested not anchored not stored refs pending

A 100-kpc inverse Compton X-ray halo around 4C60.07 at z=3.79

B.D. Lehmer (1), C.A. Scharf (4), D.M. Alexander (1), Durham; (2) ATC+IfA; (3) Herts; (4) Columbia; (5) UC Merced), Ian Smail (1), J.A. Stevens (3), J.E. Geach (1), K.E.K. Coppin (1), R.G. Bower (1), R.J. Ivison (2), W.J.M. van Breugel (5). ((1) ICC

arxiv:0908.0819 v1 · 2009-08-06 · astro-ph.CO · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JKR6ZR2EBXNK4TCCSTBALNVYMU}

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	2026-05-18T02:12:37.152265Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4aa3ecc7440ddaae4c4294c205b6b8653900e1230cd7eaffdc6e7e2a97cb306e

Aliases

arxiv: 0908.0819 · arxiv_version: 0908.0819v1 · doi: 10.48550/arxiv.0908.0819 · pith_short_12: JKR6ZR2EBXNK · pith_short_16: JKR6ZR2EBXNK4TCC · pith_short_8: JKR6ZR2E

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/JKR6ZR2EBXNK4TCCSTBALNVYMU \
  | 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: 4aa3ecc7440ddaae4c4294c205b6b8653900e1230cd7eaffdc6e7e2a97cb306e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aa1a6b55b227dcb3310c63d598eecee7426a8d47ebf52c6489d82a612c083c83",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-08-06T09:08:27Z",
    "title_canon_sha256": "3a91af934f8489a95a9824cd7335839ba13550e7bd24c5a571f4543bbe7c95f9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.0819",
    "kind": "arxiv",
    "version": 1
  }
}