Pith Number

pith:I7TUYI2O

pith:2010:I7TUYI2OYA5CWL3NHBPI7RAI2H

not attested not anchored not stored refs pending

Observational Comparison of Star Formation in Different Galaxy Types

Eva K. Grebel (ARI/ZAH, Heidelberg University)

arxiv:1009.1253 v1 · 2010-09-07 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{I7TUYI2OYA5CWL3NHBPI7RAI2H}

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	2026-05-18T02:05:35.747623Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

47e74c234ec03a2b2f6d385e8fc408d1c4518651dcc47910fc601c03f0d65569

Aliases

arxiv: 1009.1253 · arxiv_version: 1009.1253v1 · doi: 10.48550/arxiv.1009.1253 · pith_short_12: I7TUYI2OYA5C · pith_short_16: I7TUYI2OYA5CWL3N · pith_short_8: I7TUYI2O

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/I7TUYI2OYA5CWL3NHBPI7RAI2H \
  | 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: 47e74c234ec03a2b2f6d385e8fc408d1c4518651dcc47910fc601c03f0d65569

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d4a690e451ee24114c6b5060bfa86068115be7c029218814168ecabd90374b7c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-09-07T10:49:37Z",
    "title_canon_sha256": "42c0fa490dd1ea5db92b492affd20f0d294acb088c7a9eead2bb212c23adc4e4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.1253",
    "kind": "arxiv",
    "version": 1
  }
}