Pith Number

pith:4SP2IJ4C

pith:2020:4SP2IJ4CJLKQNGOSBKKKVFYWFP

not attested not anchored not stored refs pending

Estimating dust attenuation from galactic spectra. I. methodology and tests

Cheng Du, Cheng Li, Houjun Mo, Jian Hu, Niu Li, Shuang Zhou

arxiv:2001.02815 v2 · 2020-01-09 · 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{4SP2IJ4CJLKQNGOSBKKKVFYWFP}

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.

Cited by

1 paper in Pith

Mapping Dust Attenuation at Kiloparsec Scales. III. The 2175\AA\ Bump

Receipt and verification

First computed	2026-07-05T01:10:31.930951Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e49fa427824ad50699d20a94aa97162bf2ac8b6b5d4d5035d4c40f33b76dc6a1

Aliases

arxiv: 2001.02815 · arxiv_version: 2001.02815v2 · doi: 10.48550/arxiv.2001.02815 · pith_short_12: 4SP2IJ4CJLKQ · pith_short_16: 4SP2IJ4CJLKQNGOS · pith_short_8: 4SP2IJ4C

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/4SP2IJ4CJLKQNGOSBKKKVFYWFP \
  | 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: e49fa427824ad50699d20a94aa97162bf2ac8b6b5d4d5035d4c40f33b76dc6a1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ce46974b3096d568f6206c295e438d215aa0abd98fb83e01a19e29d75f6895d8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2020-01-09T02:36:50Z",
    "title_canon_sha256": "0a727a6a4c28d53faeee66fd04fc7dde9e4c88487999d4890526bb43fead6586"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2001.02815",
    "kind": "arxiv",
    "version": 2
  }
}