Pith Number

pith:DDVVECTW

pith:2016:DDVVECTWROWAPU4EMCWBC55NRK

not attested not anchored not stored refs pending

On the relationship between the continuum of interstellar extinction curves, the 2200 \AA\ bump, and the diffuse interstellar bands

Frederic Zagury

arxiv:1612.08724 v2 · 2016-12-27 · 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{DDVVECTWROWAPU4EMCWBC55NRK}

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	2026-05-18T00:31:13.505435Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18eb520a768bac07d38460ac1177ad8ab83f9a89dd511d49863284b92a972ad3

Aliases

arxiv: 1612.08724 · arxiv_version: 1612.08724v2 · doi: 10.48550/arxiv.1612.08724 · pith_short_12: DDVVECTWROWA · pith_short_16: DDVVECTWROWAPU4E · pith_short_8: DDVVECTW

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/DDVVECTWROWAPU4EMCWBC55NRK \
  | 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: 18eb520a768bac07d38460ac1177ad8ab83f9a89dd511d49863284b92a972ad3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c09bb039dc100eac36a7386a3a745ee4411ce77662198fed34bddab03d7206d1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-12-27T20:10:27Z",
    "title_canon_sha256": "6e7ddd40540aa4de94f6f1b8454612f735e773abc87078c440144f3a56dfee5a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.08724",
    "kind": "arxiv",
    "version": 2
  }
}