Pith Number

pith:F6TNFFBL

pith:2007:F6TNFFBLE5SKZ5WAYQPMKTYY26

not attested not anchored not stored refs pending

Observations of Intrahour Variable Quasars: Scattering in our Galactic Neighbourhood

A. K. Tzioumis, D. L. Jauncey, H. E. Bignall, J. E. J. Lovell, J-P. Macquart, L. Kedziora-Chudczer

arxiv:0709.1301 v1 · 2007-09-10 · 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{F6TNFFBLE5SKZ5WAYQPMKTYY26}

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	2026-07-04T17:05:36.972803Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2fa6d2942b2764acf6c0c41ec54f18d7b6e23c7755289822f4a1064c430a0f5a

Aliases

arxiv: 0709.1301 · arxiv_version: 0709.1301v1 · doi: 10.48550/arxiv.0709.1301 · pith_short_12: F6TNFFBLE5SK · pith_short_16: F6TNFFBLE5SKZ5WA · pith_short_8: F6TNFFBL

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/F6TNFFBLE5SKZ5WAYQPMKTYY26 \
  | 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: 2fa6d2942b2764acf6c0c41ec54f18d7b6e23c7755289822f4a1064c430a0f5a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e6509a44f29f7435f7c482f0d42e7483d63e5eb31cce5b0baab3a163da72a63b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-09-10T02:57:10Z",
    "title_canon_sha256": "380852eae83c84d29da78dde92f5959b375178a38934766e7a1804d12e9d7abd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0709.1301",
    "kind": "arxiv",
    "version": 1
  }
}