Pith Number

pith:WM2ZT5IO

pith:2017:WM2ZT5IOFLHJCLGYM32SAX5LWA

not attested not anchored not stored refs pending

Detection of the HC$_3$NH$^+$ and HCNH$^+$ ions in the L1544 pre-stellar core

Bertrand Lefloch, Cecilia Ceccarelli, Charlotte Vastel, David Qu\'enard, Pierre Hily-Blant, Rafael Bachiller

arxiv:1706.00647 v1 · 2017-06-02 · astro-ph.GA · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

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	2026-05-18T00:39:34.338827Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b33599f50e2ace912cd866f5205fabb03d30cb1b11eafa10102992babefc61d0

Aliases

arxiv: 1706.00647 · arxiv_version: 1706.00647v1 · doi: 10.48550/arxiv.1706.00647 · pith_short_12: WM2ZT5IOFLHJ · pith_short_16: WM2ZT5IOFLHJCLGY · pith_short_8: WM2ZT5IO

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/WM2ZT5IOFLHJCLGYM32SAX5LWA \
  | 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: b33599f50e2ace912cd866f5205fabb03d30cb1b11eafa10102992babefc61d0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1478f983a9043d592516d6b81967f259192731efbbcf6557cc49252de83b696a",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-06-02T12:12:12Z",
    "title_canon_sha256": "79f492eb3ced356770b0146b65a7e67ddf2021bd9683c7ddcb9ec25f472a1f9a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.00647",
    "kind": "arxiv",
    "version": 1
  }
}