Pith Number

pith:RN7C4ALI

pith:2021:RN7C4ALIHPGWNHQ7N7C3SDQME4

not attested not anchored not stored refs pending

Lack of other molecules in CO-rich debris discs: is it primordial or secondary gas?

\'Agnes K\'osp\'al, A. Meredith Hughes, Attila Mo\'or, Dmitry A. Semenov, Emmanuel Di Folco, Grigorii V. Smirnov-Pinchukov, P\'eter \'Abrah\'am, Thomas Henning

arxiv:2111.07655 v1 · 2021-11-15 · astro-ph.EP · 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{RN7C4ALIHPGWNHQ7N7C3SDQME4}

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

A search for circumstellar gas in pre-main-sequence debris discs using absorption spectroscopy

Receipt and verification

First computed	2026-07-05T03:34:38.511665Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8b7e2e01683bcd669e1f6fc5b90e0c272830e0f9c7b88d52312470ea09b83f48

Aliases

arxiv: 2111.07655 · arxiv_version: 2111.07655v1 · doi: 10.48550/arxiv.2111.07655 · pith_short_12: RN7C4ALIHPGW · pith_short_16: RN7C4ALIHPGWNHQ7 · pith_short_8: RN7C4ALI

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/RN7C4ALIHPGWNHQ7N7C3SDQME4 \
  | 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: 8b7e2e01683bcd669e1f6fc5b90e0c272830e0f9c7b88d52312470ea09b83f48

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5e671f3fffb8b9fb04ec1a2f618bafea0d55f7de50b48d8109108a4db7f48cd0",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.SR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2021-11-15T10:26:16Z",
    "title_canon_sha256": "487a0a32e3008d090a4c7c1dd8416c42bc9ebce88e206c37f2e62c28f31b1fc4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.07655",
    "kind": "arxiv",
    "version": 1
  }
}