Pith Number

pith:DOQVZA7N

pith:2019:DOQVZA7NP5267Q6VIWRR4VINRP

not attested not anchored not stored refs pending

Systematic Variations of CO Gas Abundance with Radius in Gas-rich Protoplanetary Disks

Edwin A. Bergin, Fred Ciesla, Kamber R. Schwarz, Ke Zhang, Sebastiaan Krijt

arxiv:1908.03267 v1 · 2019-08-08 · astro-ph.EP · 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{DOQVZA7NP5267Q6VIWRR4VINRP}

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	2026-07-05T00:09:02.676412Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ba15c83ed7f75efc3d545a31e550d8bc4f96c7198b27c4ef273b882553c00ac

Aliases

arxiv: 1908.03267 · arxiv_version: 1908.03267v1 · doi: 10.48550/arxiv.1908.03267 · pith_short_12: DOQVZA7NP526 · pith_short_16: DOQVZA7NP5267Q6V · pith_short_8: DOQVZA7N

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/DOQVZA7NP5267Q6VIWRR4VINRP \
  | 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: 1ba15c83ed7f75efc3d545a31e550d8bc4f96c7198b27c4ef273b882553c00ac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3b7c9ea4e8315c07268b3ace7243cb802fafb6dc667b33d6efece72248498436",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2019-08-08T21:08:06Z",
    "title_canon_sha256": "82b4d036fa848faee1adc3c2537f7e314a182c149e7e9cd18d345538b171f7fe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.03267",
    "kind": "arxiv",
    "version": 1
  }
}