Pith Number

pith:VQIJCL6A

pith:2000:VQIJCL6AWWOTTZ7VU5PCQFFO3F

not attested not anchored not stored refs pending

The Galactic Center: An Interacting System of Unusual Sources

F. Melia, F. Yusef-Zade, M. Wardle

arxiv:astro-ph/0001185 v1 · 2000-01-11 · 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{VQIJCL6AWWOTTZ7VU5PCQFFO3F}

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	2026-05-18T01:40:48.458202Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ac10912fc0b59d39e7f5a75e2814aed971b3afb32a2d718326b9d7045e2a16bd

Aliases

arxiv: astro-ph/0001185 · arxiv_version: astro-ph/0001185v1 · doi: 10.48550/arxiv.astro-ph/0001185 · pith_short_12: VQIJCL6AWWOT · pith_short_16: VQIJCL6AWWOTTZ7V · pith_short_8: VQIJCL6A

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/VQIJCL6AWWOTTZ7VU5PCQFFO3F \
  | 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: ac10912fc0b59d39e7f5a75e2814aed971b3afb32a2d718326b9d7045e2a16bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dbe259d349f189de77365117ec48eb96e973feb98c3397e1003a001cfcafc03b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-01-11T16:33:14Z",
    "title_canon_sha256": "25d6c949f2a24e346e5f9f4ece17819c7846a7005867b3afcfd21f36f45f32fc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0001185",
    "kind": "arxiv",
    "version": 1
  }
}