Pith Number

pith:BHC7NPIR

pith:2024:BHC7NPIRDLZG3NDK67PRWGOAHT

not attested not anchored not stored refs pending

Star formation across cosmic time

Jonathan Freundlich

arxiv:2405.20803 v1 · 2024-05-31 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BHC7NPIRDLZG3NDK67PRWGOAHT}

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	2026-07-05T08:25:42.179845Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

09c5f6bd111af26db46af7df1b19c03cf9ef3aaa80d2f979844b6387d338f453

Aliases

arxiv: 2405.20803 · arxiv_version: 2405.20803v1 · doi: 10.48550/arxiv.2405.20803 · pith_short_12: BHC7NPIRDLZG · pith_short_16: BHC7NPIRDLZG3NDK · pith_short_8: BHC7NPIR

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/BHC7NPIRDLZG3NDK67PRWGOAHT \
  | 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: 09c5f6bd111af26db46af7df1b19c03cf9ef3aaa80d2f979844b6387d338f453

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fbdc741d017560c8c91da32221a0b10e6bd583db0561269128549bad16a33e36",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2024-05-31T14:04:04Z",
    "title_canon_sha256": "967032dc1ac7e3fe17132849d054a976289c6f227c053b956e10a85bc91b939f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2405.20803",
    "kind": "arxiv",
    "version": 1
  }
}