Pith Number

pith:4TW3H3FH

pith:2010:4TW3H3FHL5CCASGAV3GV6S5AEH

not attested not anchored not stored refs pending

Deep 20 GHz observations of X-ray selected QSOs the Compact Array Broadband Backend (CABB)

Elaine M. Sadler, Elizabeth K. Mahony, Ilana J. Feain, Ronald D. Ekers, Scott M. Croom, Tara Murphy

arxiv:1008.4429 v1 · 2010-08-26 · astro-ph.GA · 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{4TW3H3FHL5CCASGAV3GV6S5AEH}

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	2026-05-18T04:41:45.323487Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e4edb3eca75f442048c0aecd5f4ba021fdc480a238f33e931858121341cbbab2

Aliases

arxiv: 1008.4429 · arxiv_version: 1008.4429v1 · doi: 10.48550/arxiv.1008.4429 · pith_short_12: 4TW3H3FHL5CC · pith_short_16: 4TW3H3FHL5CCASGA · pith_short_8: 4TW3H3FH

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/4TW3H3FHL5CCASGAV3GV6S5AEH \
  | 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: e4edb3eca75f442048c0aecd5f4ba021fdc480a238f33e931858121341cbbab2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "270764575afe42df151edd7d30b2d42c73925ab7811e07c24c3a4dd8bc1e9847",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2010-08-26T04:46:05Z",
    "title_canon_sha256": "48f6df013e6717aa2cd985489b21b9d03c8050aa6b1e27b2e39d64ac8b73def9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1008.4429",
    "kind": "arxiv",
    "version": 1
  }
}