Pith Number

pith:QBLKBRJX

pith:2020:QBLKBRJX5PRTAKX67XIFM7S6RT

not attested not anchored not stored refs pending

Detection of PAH Absorption and Determination of the Mid-Infrared Diffuse Interstellar Extinction Curve from the Sightline Toward Cyg OB2-12

Brandon S. Hensley, B. T. Draine

arxiv:2002.02457 v1 · 2020-02-06 · 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{QBLKBRJX5PRTAKX67XIFM7S6RT}

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	2026-07-05T01:07:27.361994Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8056a0c537ebe3302afefdd0567e5e8cfb74e389a7d12c94ed2be426d1a89855

Aliases

arxiv: 2002.02457 · arxiv_version: 2002.02457v1 · doi: 10.48550/arxiv.2002.02457 · pith_short_12: QBLKBRJX5PRT · pith_short_16: QBLKBRJX5PRTAKX6 · pith_short_8: QBLKBRJX

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/QBLKBRJX5PRTAKX67XIFM7S6RT \
  | 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: 8056a0c537ebe3302afefdd0567e5e8cfb74e389a7d12c94ed2be426d1a89855

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "61850b2f8c939a7ff82f5d5efc19c959c80ade5ca67fe0ac7fabc39f41f189e1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2020-02-06T19:00:00Z",
    "title_canon_sha256": "d03f80d8508cb70a81ca90da201461150b8c294903dcfc4fb6d8ee560e91fe48"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2002.02457",
    "kind": "arxiv",
    "version": 1
  }
}