Pith Number

pith:H6YACXQX

pith:2021:H6YACXQX44S26EN7MFQKX6O4CT

not attested not anchored not stored refs pending

Searching Water Megamasers By Using Mid-infrared Spectroscopy (I): Possible Mid-infrared Indicators

C. Jakob Walcher, Feng Gao, Huan Li, Lei Hao, Man I Lam, Ming Yang

arxiv:2107.09394 v1 · 2021-07-20 · astro-ph.GA · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H6YACXQX44S26EN7MFQKX6O4CT}

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	2026-07-05T03:06:32.752002Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3fb0015e17e725af11bf6160abf9dc14c355ebc0834ab75fdce8e4bce9fde4d9

Aliases

arxiv: 2107.09394 · arxiv_version: 2107.09394v1 · doi: 10.48550/arxiv.2107.09394 · pith_short_12: H6YACXQX44S2 · pith_short_16: H6YACXQX44S26EN7 · pith_short_8: H6YACXQX

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/H6YACXQX44S26EN7MFQKX6O4CT \
  | 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: 3fb0015e17e725af11bf6160abf9dc14c355ebc0834ab75fdce8e4bce9fde4d9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f6529529ebe4a315307cf46d84b6e654eb566c54b9bd06f80d54d21219d5f993",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-07-20T10:24:01Z",
    "title_canon_sha256": "47b2845a01b8f1b33580486a991013788c7c948d728484a078576ab6b4ffb8dd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.09394",
    "kind": "arxiv",
    "version": 1
  }
}