Pith Number

pith:UIGG25NK

pith:2008:UIGG25NK7J7SHUML7R56V5ZQP3

not attested not anchored not stored refs pending

High-redshift blazar identification for Swift J1656.3-3302

A. Bazzano, A.J. Bird, A.J. Dean, A. Malizia, E. Mason, E. Palazzi, L. Bassani, N. Gehrels, N. Masetti, P. Giommi, P. Ubertini, R. Landi

arxiv:0801.2976 v1 · 2008-01-18 · 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{UIGG25NK7J7SHUML7R56V5ZQP3}

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	2026-07-04T17:08:54.476799Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a20c6d75aafa7f23d18bfc7beaf7307eebd8a8c60fd2da471b926adcce5c4bbc

Aliases

arxiv: 0801.2976 · arxiv_version: 0801.2976v1 · doi: 10.48550/arxiv.0801.2976 · pith_short_12: UIGG25NK7J7S · pith_short_16: UIGG25NK7J7SHUML · pith_short_8: UIGG25NK

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/UIGG25NK7J7SHUML7R56V5ZQP3 \
  | 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: a20c6d75aafa7f23d18bfc7beaf7307eebd8a8c60fd2da471b926adcce5c4bbc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "226e7fe8eff4eae79f81793294eb190a98667eb77d157ed21933993e162347cd",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-01-18T21:15:51Z",
    "title_canon_sha256": "d9a8d8e237951f42e0889fd14983253ceb0c2927d889d7f69027d4d2ae3194ec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0801.2976",
    "kind": "arxiv",
    "version": 1
  }
}