Pith Number

pith:FXIT6UZC

pith:2006:FXIT6UZCUQQU3F4EDBGN5F34YA

not attested not anchored not stored refs pending

Deep GMOS Spectroscopy of Extremely Red Galaxies in GOODS-South: Ellipticals, Mergers and Red Spirals at 1<z<2

Chris Willott, David Crampton, James Dunlop, Karina Caputi, Nathan Roche, Ross McLure

arxiv:astro-ph/0604383 v1 · 2006-04-18 · 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{FXIT6UZCUQQU3F4EDBGN5F34YA}

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	2026-07-04T16:58:36.962429Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2dd13f5322a4214d9784184cde977cc03d1799a8060dc6f2d2223a005db39cd6

Aliases

arxiv: astro-ph/0604383 · arxiv_version: astro-ph/0604383v1 · doi: 10.48550/arxiv.astro-ph/0604383 · pith_short_12: FXIT6UZCUQQU · pith_short_16: FXIT6UZCUQQU3F4E · pith_short_8: FXIT6UZC

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/FXIT6UZCUQQU3F4EDBGN5F34YA \
  | 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: 2dd13f5322a4214d9784184cde977cc03d1799a8060dc6f2d2223a005db39cd6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "106aa3cab6734b7ebf7a5a2793029ccb60ca7639db29c7b3a43166e1f6829063",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-04-18T15:39:23Z",
    "title_canon_sha256": "d9486b4a716930d16c5efc17606957aa4095bdd1ab19b15303d6184f2c7c854c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0604383",
    "kind": "arxiv",
    "version": 1
  }
}