Pith Number

pith:623SEBJQ

pith:2011:623SEBJQ2V4ATPAL6FBSCGMGI6

not attested not anchored not stored refs pending

Four IRAC Sources with an Extremely Red H-[3.6] Color: Passive or Dusty Galaxies at z>4.5?

D. Rigopoulou, G. G. Fazio, G. Magdis, J.-S. Huang, T. Wang, X. Z. Zheng

arxiv:1110.4129 v1 · 2011-10-18 · 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{623SEBJQ2V4ATPAL6FBSCGMGI6}

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	2026-05-18T02:00:08.940124Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f6b7220530d57809bc0bf14321198647b8050e3555b5443d953051d8b76c02f9

Aliases

arxiv: 1110.4129 · arxiv_version: 1110.4129v1 · doi: 10.48550/arxiv.1110.4129 · pith_short_12: 623SEBJQ2V4A · pith_short_16: 623SEBJQ2V4ATPAL · pith_short_8: 623SEBJQ

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/623SEBJQ2V4ATPAL6FBSCGMGI6 \
  | 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: f6b7220530d57809bc0bf14321198647b8050e3555b5443d953051d8b76c02f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "90b4dbe4a9882ed1f60f0540bd2ba9ab2bbe3b65be3574c2b7b755005949cbd2",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/publicdomain/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-10-18T21:26:28Z",
    "title_canon_sha256": "72101227f196d37ca6a80b567fc79a00de4173ce20481e14c714abf45c03e59f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.4129",
    "kind": "arxiv",
    "version": 1
  }
}