ISRC GBCTX1800773
Verified recording
GBCTX1800773 is “Improv Trio - Live at the Concertgebouw, Amsterdam, Nov. 23, 1973” by King Crimson,
registered on the CopyrightChains blockchain with CopyrightID
0xd4139222646cfcac369a790180f2ef992215005382b8a40bb24d66963a5f3b7b and independently timestamped
in Bitcoin block 956889 on 2026-07-06.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBCTX1800773.
Recording identifiers
- ISRC
- GBCTX1800773
- Title
- Improv Trio - Live at the Concertgebouw, Amsterdam, Nov. 23, 1973
- Artist
- King Crimson
- CopyrightID (CopyrightChains transaction hash)
0xd4139222646cfcac369a790180f2ef992215005382b8a40bb24d66963a5f3b7b
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-06T06:56:49+00:00
- Bitcoin block
- 956889
- Canonical record hash
sha256:9468885f1038347044fdd72a177fe5e32ceeb32c6a6cca1d1111c38a45c55b39- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBCTX1800773
- Bitcoin block existence check
- https://blockstream.info/api/block/956889
Full record
Track page: Improv Trio - Live at the Concertgebouw, Amsterdam, Nov. 23, 1973 · Machine-readable JSON-LD