Pith Number

pith:P7M62GRP

pith:2016:P7M62GRPSS5GYA3EZBSL2ZMCT2

not attested not anchored not stored refs pending

Dense Gas in the Outer Spiral Arm of M51

Hao Chen, Jin Koda, Jonathan Braine, Qiusheng Gu, Yu Gao

arxiv:1612.00459 v1 · 2016-12-01 · 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{P7M62GRPSS5GYA3EZBSL2ZMCT2}

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	2026-05-18T00:50:17.907887Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7fd9ed1a2f94ba6c0364c864bd65829e98252efa618f52f4b1ba464d64bfbfa3

Aliases

arxiv: 1612.00459 · arxiv_version: 1612.00459v1 · doi: 10.48550/arxiv.1612.00459 · pith_short_12: P7M62GRPSS5G · pith_short_16: P7M62GRPSS5GYA3E · pith_short_8: P7M62GRP

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/P7M62GRPSS5GYA3EZBSL2ZMCT2 \
  | 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: 7fd9ed1a2f94ba6c0364c864bd65829e98252efa618f52f4b1ba464d64bfbfa3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "75c748ccce51b208f0b24c5d24c49e79698ad39344d702bf7e5eb00ff103519e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-12-01T21:00:10Z",
    "title_canon_sha256": "444fd625825cd9a913af55941680f49ea2970cce3986b679d6837f7079a948ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.00459",
    "kind": "arxiv",
    "version": 1
  }
}