Pith Number

pith:DTKQIVUX

pith:2001:DTKQIVUXJNFSEY2BQMD4C7BW2G

not attested not anchored not stored refs pending

JHK Spectroscopy of the z=2.39 Radio Galaxy 53W002 and Its Companions

F. Iwamuro, K. Motohara (NAOJ, Subaru Telescope), T.Maihara (Kyoto University), T. Yamada (National Astronomical Observatory of Japan)

arxiv:astro-ph/0104472 v1 · 2001-04-29 · 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{DTKQIVUXJNFSEY2BQMD4C7BW2G}

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	2026-07-04T14:11:09.163959Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1cd50456974b4b2263418307c17c36d1b0f06845a271404fd8b6ad79782229fa

Aliases

arxiv: astro-ph/0104472 · arxiv_version: astro-ph/0104472v1 · doi: 10.48550/arxiv.astro-ph/0104472 · pith_short_12: DTKQIVUXJNFS · pith_short_16: DTKQIVUXJNFSEY2B · pith_short_8: DTKQIVUX

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/DTKQIVUXJNFSEY2BQMD4C7BW2G \
  | 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: 1cd50456974b4b2263418307c17c36d1b0f06845a271404fd8b6ad79782229fa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b5293ef5de2a76cdf792178f5ff0f0b25df397b677204fbedf38cb1a1a7e458f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-04-29T22:34:22Z",
    "title_canon_sha256": "671a89ef49943ba0a7861ed965c66556ec7533e3fb4aaac2c4618395b5c1a9d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0104472",
    "kind": "arxiv",
    "version": 1
  }
}