Pith Number

pith:BTOCLY72

pith:2020:BTOCLY72KLMAYHMC237KKJDN76

not attested not anchored not stored refs pending

Signatures of first galaxies at FIR/sub-mm wavelengths

Maria Emilia De Rossi, Volker Bromm

arxiv:2001.02720 v1 · 2020-01-08 · astro-ph.GA · 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{BTOCLY72KLMAYHMC237KKJDN76}

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	2026-07-05T00:32:23.062083Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0cdc25e3fa52d80c1d82d6fea5246dff9b954fd41d59d95d4556a916178e9a9c

Aliases

arxiv: 2001.02720 · arxiv_version: 2001.02720v1 · doi: 10.48550/arxiv.2001.02720 · pith_short_12: BTOCLY72KLMA · pith_short_16: BTOCLY72KLMAYHMC · pith_short_8: BTOCLY72

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/BTOCLY72KLMAYHMC237KKJDN76 \
  | 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: 0cdc25e3fa52d80c1d82d6fea5246dff9b954fd41d59d95d4556a916178e9a9c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c4ba63ae20544ef1e344eee6ea75b621a3e66c3ac953b7f26749f5035c47ef35",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2020-01-08T20:04:29Z",
    "title_canon_sha256": "9591a1d836b152e9c188bc638979e5e2bec8636295fcf8d122f14335f221b085"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2001.02720",
    "kind": "arxiv",
    "version": 1
  }
}