Pith Number

pith:R3ZTPBC6

pith:2009:R3ZTPBC6632FJSXCO4VGL4PKVY

not attested not anchored not stored refs pending

Samples and statistics of CSS and GPS sources

A. Polatidis (2), M. Giroletti (1)

arxiv:0904.1068 v1 · 2009-04-07 · astro-ph.CO · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{R3ZTPBC6632FJSXCO4VGL4PKVY}

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	2026-05-18T04:14:36.172911Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8ef337845ef6f454cae2772a65f1eaae2872bc0dec787e9d4359c3747c11b54c

Aliases

arxiv: 0904.1068 · arxiv_version: 0904.1068v1 · doi: 10.48550/arxiv.0904.1068 · pith_short_12: R3ZTPBC6632F · pith_short_16: R3ZTPBC6632FJSXC · pith_short_8: R3ZTPBC6

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/R3ZTPBC6632FJSXCO4VGL4PKVY \
  | 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: 8ef337845ef6f454cae2772a65f1eaae2872bc0dec787e9d4359c3747c11b54c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8944a7d525c18dc516e195b4de2701d8dcd33ed93418b34d0cb5ee0dbbcb89ee",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-04-07T07:42:14Z",
    "title_canon_sha256": "ddf732b7e0fa5a66ddf18e23557e4c1bae25738a841f353bd73867c5d5c95e1d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.1068",
    "kind": "arxiv",
    "version": 1
  }
}