Pith Number

pith:ORIWIKEU

pith:2021:ORIWIKEUAGVO7O5W4RUTRDM3VC

not attested not anchored not stored refs pending

Discovery of the propargyl radical (CH2CCH) in TMC-1: one of the most abundant radicals ever found and a key species for cyclization to benzene in cold dark clouds

B. Tercero, C. Cabezas, J. Cernicharo, J. D. Gallego, M. Agundez, N. Marcelino, P. de Vicente

arxiv:2103.03807 v1 · 2021-03-05 · 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{ORIWIKEUAGVO7O5W4RUTRDM3VC}

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	2026-07-05T02:25:40.158174Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

745164289401aaefbbb6e469388d9ba88d595b1dbbe41882bb63deb7c12e2302

Aliases

arxiv: 2103.03807 · arxiv_version: 2103.03807v1 · doi: 10.48550/arxiv.2103.03807 · pith_short_12: ORIWIKEUAGVO · pith_short_16: ORIWIKEUAGVO7O5W · pith_short_8: ORIWIKEU

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/ORIWIKEUAGVO7O5W4RUTRDM3VC \
  | 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: 745164289401aaefbbb6e469388d9ba88d595b1dbbe41882bb63deb7c12e2302

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "90b717ee91781281cae4ac2ecc6de908204d8749485423e814ac6d5c071f8542",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-03-05T17:10:10Z",
    "title_canon_sha256": "f63b9f06999311d0e3f5c9686804522ddb295e84f22400c2444216a2e1823155"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.03807",
    "kind": "arxiv",
    "version": 1
  }
}