Pith Number

pith:VP3AYTSG

pith:2000:VP3AYTSGKV6AIX4NEVXP234TM2

not attested not anchored not stored refs pending

Models of Disk Evolution: Confrontation with Observations

Joseph Silk (Oxford), Rychard J. Bouwens (UC Santa Cruz)

arxiv:astro-ph/0002133 v1 · 2000-02-07 · 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{VP3AYTSGKV6AIX4NEVXP234TM2}

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	2026-05-18T04:14:55.558785Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

abf60c4e46557c045f8d256efd6f9366b2c62b0ed9648959b5d4e63f28fa5c45

Aliases

arxiv: astro-ph/0002133 · arxiv_version: astro-ph/0002133v1 · doi: 10.48550/arxiv.astro-ph/0002133 · pith_short_12: VP3AYTSGKV6A · pith_short_16: VP3AYTSGKV6AIX4N · pith_short_8: VP3AYTSG

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/VP3AYTSGKV6AIX4NEVXP234TM2 \
  | 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: abf60c4e46557c045f8d256efd6f9366b2c62b0ed9648959b5d4e63f28fa5c45

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1f1b211462ce67278bd62972a8eba3b53a056344814ac5b7e8074b7c9595de7f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-02-07T02:35:47Z",
    "title_canon_sha256": "de7b363b6b5e678ab6e672943582782ca9ebe7f0eff0ea8fa9610db7da3f77d5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0002133",
    "kind": "arxiv",
    "version": 1
  }
}