Pith Number

pith:DGHPME2A

pith:2013:DGHPME2ACVMPFMTAOUV4RM5M4O

not attested not anchored not stored refs pending

An Empirical Model for the Star Formation History in Dark Matter Halos

Frank C. van den Bosch, Houjun Mo, Martin D. Weinberg, Neal Katz, Xiaohu Yang, Yu Lu, Zhankui Lu

arxiv:1306.0650 v4 · 2013-06-04 · astro-ph.CO

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

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	2026-05-18T01:49:33.286700Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

198ef613401558f2b260752bc8b3ace3a3c33dd34e2243cf8542faee5f8257a4

Aliases

arxiv: 1306.0650 · arxiv_version: 1306.0650v4 · doi: 10.48550/arxiv.1306.0650 · pith_short_12: DGHPME2ACVMP · pith_short_16: DGHPME2ACVMPFMTA · pith_short_8: DGHPME2A

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/DGHPME2ACVMPFMTAOUV4RM5M4O \
  | 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: 198ef613401558f2b260752bc8b3ace3a3c33dd34e2243cf8542faee5f8257a4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b36cf3ececc11f46201c7a997267fac9ffc4fe503958abc49e04e707bb9294f5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-06-04T04:21:27Z",
    "title_canon_sha256": "5f5f71ebe8040758c828af9376e09185517b29536a05003aee0aa35b88977d0e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.0650",
    "kind": "arxiv",
    "version": 4
  }
}