Pith Number

pith:WWENLKAZ

pith:2015:WWENLKAZ4YKI6FDVXXFW3DAZGM

not attested not anchored not stored refs pending

Probing the Role of Carbon in the Interstellar Ultraviolet Extinction

Aigen Li, Ajay Mishra

arxiv:1507.06599 v1 · 2015-07-23 · astro-ph.GA · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WWENLKAZ4YKI6FDVXXFW3DAZGM}

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	2026-05-18T01:35:06.679274Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b588d5a819e6148f1475bdcb6d8c193304c4d72638b4af8ff09fe34ae8355867

Aliases

arxiv: 1507.06599 · arxiv_version: 1507.06599v1 · doi: 10.48550/arxiv.1507.06599 · pith_short_12: WWENLKAZ4YKI · pith_short_16: WWENLKAZ4YKI6FDV · pith_short_8: WWENLKAZ

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/WWENLKAZ4YKI6FDVXXFW3DAZGM \
  | 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: b588d5a819e6148f1475bdcb6d8c193304c4d72638b4af8ff09fe34ae8355867

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0acb807f14602a02ba5430862770511b0e228f71b36f55f67a51e7d79b358411",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-07-23T18:30:28Z",
    "title_canon_sha256": "80260f574404467d4f59d8063f0d3292937161f204d3fec3b8ea70fac995e86b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.06599",
    "kind": "arxiv",
    "version": 1
  }
}