Pith Number

pith:VBCE644U

pith:2017:VBCE644UGAXI7CQVEHQUKVT4XW

not attested not anchored not stored refs pending

A Question of Mass: Accounting for all the Dust in the Crab Nebula with the Deepest Far Infrared Maps

Cyrine Nehm\'e, Jessy Matar, Marc Sauvage

arxiv:1710.07512 v1 · 2017-10-20 · 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{VBCE644UGAXI7CQVEHQUKVT4XW}

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	2026-05-18T00:32:24.653927Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a8444f7394302e8f8a1521e145567cbd84eb7580e45fcac5c5fc80e4cf101466

Aliases

arxiv: 1710.07512 · arxiv_version: 1710.07512v1 · doi: 10.48550/arxiv.1710.07512 · pith_short_12: VBCE644UGAXI · pith_short_16: VBCE644UGAXI7CQV · pith_short_8: VBCE644U

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/VBCE644UGAXI7CQVEHQUKVT4XW \
  | 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: a8444f7394302e8f8a1521e145567cbd84eb7580e45fcac5c5fc80e4cf101466

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aa2b486983dfe48e7cce61aa845894fa20b2e15a1f751aa1394e99b885e34edd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-10-20T12:48:06Z",
    "title_canon_sha256": "3945a31e3690850fed7c988d496f86864c07753ed16934f56aeb734516be05c7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.07512",
    "kind": "arxiv",
    "version": 1
  }
}