Pith Number

pith:NRCQFKVN

pith:2014:NRCQFKVNTNTMSZVE4WFF37GD3G

not attested not anchored not stored refs pending

Spitzer IRS Observations of the XA Region in the Cygnus Loop Supernova Remnant

(2) Smithsonian Astrophysical Observatory, (3) Western Michigan University, (4) Goddard Space Flight Center, (5) Johns Hopkins University, (6) North Carolina State University, (7) Space Telescope Science Institute), B. J. Williams (4), J. C. Raymond (2), K. J. Borkowski (6), K. S. Long (7) ((1) SOFIA Science Center, M. Bautista (3), R. Sankrit (1), T. J. Gaetz (2), W. P. Blair (5)

arxiv:1403.3676 v1 · 2014-03-14 · astro-ph.GA

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	2026-05-18T01:44:01.008640Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c4502aaad9b66c966a4e58a5dfcc3d98b906e227993c57b03c7ce7c3ffcc82b

Aliases

arxiv: 1403.3676 · arxiv_version: 1403.3676v1 · doi: 10.48550/arxiv.1403.3676 · pith_short_12: NRCQFKVNTNTM · pith_short_16: NRCQFKVNTNTMSZVE · pith_short_8: NRCQFKVN

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/NRCQFKVNTNTMSZVE4WFF37GD3G \
  | 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: 6c4502aaad9b66c966a4e58a5dfcc3d98b906e227993c57b03c7ce7c3ffcc82b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "49e14b20b440cde2118875cbe0e568aecc662bd13195bfa872e2fa07eca4ac36",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2014-03-14T19:19:28Z",
    "title_canon_sha256": "313249d88c3983ad5d80e7db52b0d35a51dcad07943b4d61ebfe846635b7b4b2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.3676",
    "kind": "arxiv",
    "version": 1
  }
}