Pith Number

pith:I2FYCMV7

pith:2017:I2FYCMV7EVHOD3ALPSJRA3ZEFR

not attested not anchored not stored refs pending

The Origins of UV-optical Color Gradients in Star-forming Galaxies at z ~ 2: Predominant Dust Gradients But Negligible sSFR Gradients

David C. Koo, Dongfei Jiang, F. S. Liu, Guillermo Barro, Hassen M. Yesuf, Jerome J. Fang, Lu Liu, Meng Jia, Sandro Tacchella, Shude Mao, S. M. Faber, Weichen Wang, Wei Tong, Xianmin Meng, Xianzhong Zheng, Yicheng Guo

arxiv:1707.00226 v1 · 2017-07-02 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{I2FYCMV7EVHOD3ALPSJRA3ZEFR}

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	2026-05-18T00:38:50.310953Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

468b8132bf254ee1ec0b7c93106f242c78f9e01b354d25e6778e7efbb0c5eaeb

Aliases

arxiv: 1707.00226 · arxiv_version: 1707.00226v1 · doi: 10.48550/arxiv.1707.00226 · pith_short_12: I2FYCMV7EVHO · pith_short_16: I2FYCMV7EVHOD3AL · pith_short_8: I2FYCMV7

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/I2FYCMV7EVHOD3ALPSJRA3ZEFR \
  | 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: 468b8132bf254ee1ec0b7c93106f242c78f9e01b354d25e6778e7efbb0c5eaeb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "abca6fdad5edb688c93e9dc1332637df508ebc581253343083ee25137bec59f7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-07-02T02:29:45Z",
    "title_canon_sha256": "60111ceedf1bfe0e999213ef089f09f4edbb4d1edc06f24b12ec5c7f3034e363"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.00226",
    "kind": "arxiv",
    "version": 1
  }
}