Pith Number

pith:POLJHFGI

pith:2008:POLJHFGIRLHLBTYHSD5HDD2WCP

not attested not anchored not stored refs pending

The Formation and Survival of Discs in a Lambda-CDM Universe

Cecilia Scannapieco (1), Patricia B. Tissera (2) ((1) Max-Planck Institute for Astrophysics - Garching; (2) Institute for Astronomy, Simon D.M. White (1), Space Physics - Buenos Aires), Volker Springel (1)

arxiv:0812.0976 v2 · 2008-12-04 · 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{POLJHFGIRLHLBTYHSD5HDD2WCP}

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	2026-05-18T02:15:11.844664Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7b969394c88aceb0cf0790fa718f5613e2f9f6a207604ceb9c7457c783ad62f6

Aliases

arxiv: 0812.0976 · arxiv_version: 0812.0976v2 · doi: 10.48550/arxiv.0812.0976 · pith_short_12: POLJHFGIRLHL · pith_short_16: POLJHFGIRLHLBTYH · pith_short_8: POLJHFGI

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/POLJHFGIRLHLBTYHSD5HDD2WCP \
  | 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: 7b969394c88aceb0cf0790fa718f5613e2f9f6a207604ceb9c7457c783ad62f6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bac26833c6a0c83f030911e487ef4eb37c712a23a8b116fc9378f02207fb86f1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-12-04T20:47:08Z",
    "title_canon_sha256": "c6e51b54079edf8ec2cea8958daf4111973073cc7466543db338f6f45d40dbb3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0812.0976",
    "kind": "arxiv",
    "version": 2
  }
}