Pith Number

pith:YDUIWKZD

pith:2008:YDUIWKZDAOFHGG7FSBWKISTCON

not attested not anchored not stored refs pending

A new activity phase of the blazar 3C 454.3. Multifrequency observations by the WEBT and XMM-Newton in 2007-2008

C. M. Raiteri, et al, M. A. Gurwell, M. Villata, V. M. Larionov, W. P. Chen

arxiv:0810.2424 v1 · 2008-10-14 · 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{YDUIWKZDAOFHGG7FSBWKISTCON}

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	2026-07-04T17:13:12.713359Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c0e88b2b23038a731be5906ca44a627376d3b1151bbb075678f02c1f417889b9

Aliases

arxiv: 0810.2424 · arxiv_version: 0810.2424v1 · doi: 10.48550/arxiv.0810.2424 · pith_short_12: YDUIWKZDAOFH · pith_short_16: YDUIWKZDAOFHGG7F · pith_short_8: YDUIWKZD

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/YDUIWKZDAOFHGG7FSBWKISTCON \
  | 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: c0e88b2b23038a731be5906ca44a627376d3b1151bbb075678f02c1f417889b9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7c387621b6a49c8fd054043e0fa44e912054c4ff9a9b51772fe35ee7b113fe12",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-10-14T13:33:14Z",
    "title_canon_sha256": "f2bb2adba3838eba7fa283f7b2db930192dfab4a7755216415022c85127f5ec0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0810.2424",
    "kind": "arxiv",
    "version": 1
  }
}