Pith Number

pith:TCZXEBFK

pith:2007:TCZXEBFKHDWMUXEA45PXNPFEXP

not attested not anchored not stored refs pending

A Search for Synchrotron X-ray Emission in Radio Quasars

(2) ESO, (3) ASI Science Data Center, (4) Stanford University), Chi C. Cheung (4) ((1) Harvard-Smithsonian CfA, Hermine Landt (1), Matteo Perri (3), Paolo Giommi (3), Paolo Padovani (2)

arxiv:0712.1689 v1 · 2007-12-11 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TCZXEBFKHDWMUXEA45PXNPFEXP}

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	2026-05-18T04:36:41.676334Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

98b37204aa38ecca5c80e75f76bca4bbc1d46bab48410c660df97a676dba6978

Aliases

arxiv: 0712.1689 · arxiv_version: 0712.1689v1 · doi: 10.48550/arxiv.0712.1689 · pith_short_12: TCZXEBFKHDWM · pith_short_16: TCZXEBFKHDWMUXEA · pith_short_8: TCZXEBFK

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/TCZXEBFKHDWMUXEA45PXNPFEXP \
  | 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: 98b37204aa38ecca5c80e75f76bca4bbc1d46bab48410c660df97a676dba6978

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2ec10efbac1b5385a2e7e2914c5c80b500ad56c713403074a5a003487df6cfb1",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-12-11T11:51:10Z",
    "title_canon_sha256": "0f6d0b23e7c5128fb6a86f7280d96e2f9545663e0124878ab370f497f3fc318c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0712.1689",
    "kind": "arxiv",
    "version": 1
  }
}