Pith Number

pith:2KWMJIXB

pith:2000:2KWMJIXBFVLDTT6ACL4T4ILW7Z

not attested not anchored not stored refs pending

Kinematic Age Estimates for 4 Compact Symmetric Objects from the Pearson-Readhead Survey

& A. C. S. Readhead, G. B. Taylor, J. M. Marr, T. J. Pearson

arxiv:astro-ph/0005209 v1 · 2000-05-09 · 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{2KWMJIXBFVLDTT6ACL4T4ILW7Z}

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.

Cited by

1 paper in Pith

The long-term optical flux variations of Compact Symmetric Objects

Receipt and verification

First computed	2026-07-04T16:16:38.459485Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d2acc4a2e12d5639cfc012f93e2176fe491ee98a7506d2b01ab46e33bf3ea327

Aliases

arxiv: astro-ph/0005209 · arxiv_version: astro-ph/0005209v1 · doi: 10.48550/arxiv.astro-ph/0005209 · pith_short_12: 2KWMJIXBFVLD · pith_short_16: 2KWMJIXBFVLDTT6A · pith_short_8: 2KWMJIXB

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/2KWMJIXBFVLDTT6ACL4T4ILW7Z \
  | 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: d2acc4a2e12d5639cfc012f93e2176fe491ee98a7506d2b01ab46e33bf3ea327

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3595036fc67608f943ad32ebf36c64cc62f85db3f1a2ce98debd128c8b659a35",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-05-09T22:59:54Z",
    "title_canon_sha256": "b3896781100423aea109419b32007453f5ac6e5e651384b11cdd84d879618ca0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0005209",
    "kind": "arxiv",
    "version": 1
  }
}