Pith Number

pith:2FL7YJ2U

pith:2020:2FL7YJ2UFMVBT2NBW6TO2HGVYC

not attested not anchored not stored refs pending

Seeds of Life in Space (SOLIS).VII. Discovery of a cold dense methanol blob toward the L1521F VeLLO system

A. Chac\'on-Tanarro, A.I. Vasyunin, A. Jaber Al-Edhari, A. L\'opez-Sepulcre, A. Punanova, A. Rimola, A. Witzel, B. Lefloch, C. Ceccarelli, C. Codella, C. Favre, C. Vastel, D. Qu\'enard, D. Segura-Cox, E. Bianchi, E. Caux, F. Alves, F. Dulieu, F. Fontani, F. Vazart, I. Jimenez-Serra, I. R. Sims, J. Enrique Romero, J. Holdship, J. Ospina-Zamudio, J. Pineda, L. Bizzocchi, L. Podio, L. Testi, M. De Simone, N. Balucani, N. Sakai, P. Caselli, P. Theul\'e, P. Ugliengo, R. Bachiller, R. Neri, S. Feng, S. Spezzano, S. Viti, S. Yamamoto, V. Taquet, Y. Oya

arxiv:2002.07004 v1 · 2020-02-17 · 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{2FL7YJ2UFMVBT2NBW6TO2HGVYC}

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	2026-07-05T00:53:45.693190Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d157fc27542b2a19e9a1b7a6ed1cd5c09dc96e1dd05dab7b4957a33f6e453c1c

Aliases

arxiv: 2002.07004 · arxiv_version: 2002.07004v1 · doi: 10.48550/arxiv.2002.07004 · pith_short_12: 2FL7YJ2UFMVB · pith_short_16: 2FL7YJ2UFMVBT2NB · pith_short_8: 2FL7YJ2U

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/2FL7YJ2UFMVBT2NBW6TO2HGVYC \
  | 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: d157fc27542b2a19e9a1b7a6ed1cd5c09dc96e1dd05dab7b4957a33f6e453c1c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ace1ff6a82a64a08ede6465c9b328b70b8a16578efad4a0f9792b3983aadd9c2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2020-02-17T15:28:56Z",
    "title_canon_sha256": "f4f920c3351f73ad76e956882fb0c8cb67e4612e36b4e27b6086e5897f852faa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2002.07004",
    "kind": "arxiv",
    "version": 1
  }
}