Pith Number

pith:NCMA2MU5

pith:2014:NCMA2MU5IQJWBFXF73VZF6FGAW

not attested not anchored not stored refs pending

A 52 hours VLT/FORS2 spectrum of a bright z~7 HUDF galaxy: no Ly-alpha emission

A. Fontana, A. Grazian, C. Vignali, E. Vanzella, G. Zamorani, L. Pentericci, M. Castellano, M. Giavalisco, M. Nonino, S. Cristiani

arxiv:1407.3787 v1 · 2014-07-14 · 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{NCMA2MU5IQJWBFXF73VZF6FGAW}

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	2026-05-18T02:41:24.430153Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

68980d329d44136096e5feeb92f8a60592ba1b0a46ba5c3a975563d512501d59

Aliases

arxiv: 1407.3787 · arxiv_version: 1407.3787v1 · doi: 10.48550/arxiv.1407.3787 · pith_short_12: NCMA2MU5IQJW · pith_short_16: NCMA2MU5IQJWBFXF · pith_short_8: NCMA2MU5

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/NCMA2MU5IQJWBFXF73VZF6FGAW \
  | 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: 68980d329d44136096e5feeb92f8a60592ba1b0a46ba5c3a975563d512501d59

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db30f8778a41a209a7f2ba3c238336f56f230a8cc972e6931e2e21bd6dade288",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2014-07-14T20:00:01Z",
    "title_canon_sha256": "8c909f6b86880d49a9c0cea70bde0e22c0b1460a68404d07c402929d44f7f5d2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.3787",
    "kind": "arxiv",
    "version": 1
  }
}