Pith Number

pith:YNEFAKSV

pith:2021:YNEFAKSVYBQ7HASHR3V6ACTFBY

not attested not anchored not stored refs pending

Chemical survey of Class I protostars with the IRAM-30m

A. Lopez-Sepulcre, C. Ceccarelli, C. Codella, E. Bianchi, L. Chahine, L. Podio, M. Bouvier, R. Neri, S. Mercimek

arxiv:2111.07573 v1 · 2021-11-15 · astro-ph.SR · astro-ph.EP · 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{YNEFAKSVYBQ7HASHR3V6ACTFBY}

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	2026-07-05T04:04:24.450520Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c348502a55c061f382478eebe00a650e08170374371c85f54c0e797e0bfbee50

Aliases

arxiv: 2111.07573 · arxiv_version: 2111.07573v1 · doi: 10.48550/arxiv.2111.07573 · pith_short_12: YNEFAKSVYBQ7 · pith_short_16: YNEFAKSVYBQ7HASH · pith_short_8: YNEFAKSV

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/YNEFAKSVYBQ7HASHR3V6ACTFBY \
  | 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: c348502a55c061f382478eebe00a650e08170374371c85f54c0e797e0bfbee50

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0d979e3fcea9087e09060d90841396f2cc5161585a0146215c1f3017c7fef24f",
    "cross_cats_sorted": [
      "astro-ph.EP",
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2021-11-15T07:42:56Z",
    "title_canon_sha256": "a1ee38655d4db92e627ef7b328683166c0b7c7cb0e9af0028082499d974ea24e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.07573",
    "kind": "arxiv",
    "version": 1
  }
}