Pith Number

pith:TCHJW2PG

pith:2009:TCHJW2PGMYFUUC6NUBA27YIAVO

not attested not anchored not stored refs pending

The Evolution of Wide Binary Stars

Scott Tremaine, Yan-Fei Jiang

arxiv:0907.2952 v2 · 2009-07-16 · astro-ph.GA · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TCHJW2PGMYFUUC6NUBA27YIAVO}

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	2026-07-04T17:19:02.386603Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

988e9b69e6660b4a0bcda041afe100abb3c55ceb9819ce70e709b0ae34657f97

Aliases

arxiv: 0907.2952 · arxiv_version: 0907.2952v2 · doi: 10.48550/arxiv.0907.2952 · pith_short_12: TCHJW2PGMYFU · pith_short_16: TCHJW2PGMYFUUC6N · pith_short_8: TCHJW2PG

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/TCHJW2PGMYFUUC6NUBA27YIAVO \
  | 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: 988e9b69e6660b4a0bcda041afe100abb3c55ceb9819ce70e709b0ae34657f97

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "883efa88bc266d66cf13181b46eea5689a7e87b1281e962f1abe4f3662684f38",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-07-16T23:20:09Z",
    "title_canon_sha256": "349c024ccc9ac560a5cd7aa687045ea572e0a3f9da321521d26ba4830dd8f735"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.2952",
    "kind": "arxiv",
    "version": 2
  }
}