Pith Number

pith:HAYI3BN7

pith:1999:HAYI3BN7ARPZC5MTI5P4T7AQDW

not attested not anchored not stored refs pending

Near Infrared Observations of the Extremely Red Object CL0939+4713B: An Old Galaxy at z~1.58?

B.T.Soifer, G. Neugebauer, I. Smail, J.G. Cohen, K. Matthews, L. Armus, S.E. Persson

arxiv:astro-ph/9906464 v2 · 1999-06-29 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HAYI3BN7ARPZC5MTI5P4T7AQDW}

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	2026-07-04T16:11:22.355335Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

38308d85bf045f917593475fc9fc101d883001801bbd41909b5c65a040618b11

Aliases

arxiv: astro-ph/9906464 · arxiv_version: astro-ph/9906464v2 · doi: 10.48550/arxiv.astro-ph/9906464 · pith_short_12: HAYI3BN7ARPZ · pith_short_16: HAYI3BN7ARPZC5MT · pith_short_8: HAYI3BN7

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/HAYI3BN7ARPZC5MTI5P4T7AQDW \
  | 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: 38308d85bf045f917593475fc9fc101d883001801bbd41909b5c65a040618b11

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "52aaa0bdb209d718fee5068f8c6b426a8b1909da0e164902622a78e2d5ff3e53",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-06-29T00:28:43Z",
    "title_canon_sha256": "7d13375ff06a0fd6d7edb512b7544885d8b8a3c127e888acb68b10827ccaa359"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9906464",
    "kind": "arxiv",
    "version": 2
  }
}