Pith Number

pith:FPVWISB5

pith:2021:FPVWISB56LJYZOKUCQVUIG2LAC

not attested not anchored not stored refs pending

The MACH HI absorption survey I: Physical conditions of cold atomic gas outside of the Galactic plane

Carl Heiles, Claire E. Murray, John M. Dickey, M.-Y. Lee, Nicholas Killerby-Smith, N. M. McClure-Griffiths, Sne\v{z}ana Stanimirovi\'c, W. M. Goss

arxiv:2106.15614 v1 · 2021-06-29 · 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{FPVWISB56LJYZOKUCQVUIG2LAC}

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	2026-07-05T03:19:15.714719Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2beb64483df2d38cb954142b441b4b008f712376697e1ddaf7447966bedbb658

Aliases

arxiv: 2106.15614 · arxiv_version: 2106.15614v1 · doi: 10.48550/arxiv.2106.15614 · pith_short_12: FPVWISB56LJY · pith_short_16: FPVWISB56LJYZOKU · pith_short_8: FPVWISB5

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/FPVWISB56LJYZOKUCQVUIG2LAC \
  | 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: 2beb64483df2d38cb954142b441b4b008f712376697e1ddaf7447966bedbb658

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9dda272175bee7cd06d6187ae789bb42ceb758780532d25a670e72886fbaa04a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-06-29T17:58:31Z",
    "title_canon_sha256": "cfd765f203d951ebc3164c290011d91b5ba9e85e0a2286f173bb6d8c70520f43"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2106.15614",
    "kind": "arxiv",
    "version": 1
  }
}