Pith Number

pith:P5LGO2GY

pith:2012:P5LGO2GYDDAHDDWNCE3DI2G4CX

not attested not anchored not stored refs pending

Star formation in the early universe: beyond the tip of the iceberg

A. J. Castro-Tirado, A. J. Levan, A. S. Fruchter, C. Kouveliotou, D. Bersier, D. Watson, E. R. Stanway, J. F. Graham, J. Greiner, J. Hjorth, J. P. U. Fynbo, J. Rhoads, K. Misra, K. Wiersema, M. N. Bremer, N. R. Tanvir, P. Jakobsson, P. Natarajan, P. T. O'Brien, R. A. M. J. Wijers, R. L. C. Starling

arxiv:1201.6074 v2 · 2012-01-29 · 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{P5LGO2GYDDAHDDWNCE3DI2G4CX}

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	2026-05-18T01:58:38.446132Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f566768d818c0718ecd11363468dc15eff2a413ee3e9b9bce4fa0e8747dace5

Aliases

arxiv: 1201.6074 · arxiv_version: 1201.6074v2 · doi: 10.48550/arxiv.1201.6074 · pith_short_12: P5LGO2GYDDAH · pith_short_16: P5LGO2GYDDAHDDWN · pith_short_8: P5LGO2GY

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/P5LGO2GYDDAHDDWNCE3DI2G4CX \
  | 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: 7f566768d818c0718ecd11363468dc15eff2a413ee3e9b9bce4fa0e8747dace5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8be3fa27ae1d879949a21bb7fd0d79b7caac364a15d8b5e1c0585dd0aab9afa2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-01-29T20:02:23Z",
    "title_canon_sha256": "198ac9c4bc0e33eda462db9fb93ab3616ea5c22cb8f0453b2a307181cdd7ea4e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.6074",
    "kind": "arxiv",
    "version": 2
  }
}