Bourbonese Qualk was an experimental music group that existed from 1980 to 2003. The group participated in the early 1980s industrial & experimental music tape scene. Writing for CMJ, Martin Aston cha
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aa000ec0137d1a1837a5c133331339cde0fbb4353f9ead52688aa46c196c2b6. Chain 2 (Bitcoin): anchored in block 953746 (2026-06-15T05:25:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a3e53a57-b16e-4b13-9234-eb31feb9ad24.json and https://artists.proofprofile.net/proofs/artist/a3e53a57-b16e-4b13-9234-eb31feb9ad24.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b5d85ccf1bf6cd5d7aa35e5ddca77c0efe16464cdbbe0273716855410b040c3. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21488819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x266c5262d0e9526cc23792dfe7ac9fad5b731ba564879b88419fba3ec323a4bb. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21488821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d6be4e9a5a67a65673897ca4a91e3573069c4d87cf54ea807ced8d669213ef. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21488822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bac0b79f46b9c93447a89a5934ea27dab9f10c875614559941555f51147825d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21488825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2db56461347950526ea4d5c013be65b0d8fb05db32123446e61094b283cfa001. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21488826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e27824336e577c9d376690c981d1c0c1f4f45d441f7768faad25bc322f63117. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEG931992129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x262235610f0a71e1132e5ee927846efe59b82f96b0828b7dcf30691892811471. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEG931992130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb41e3da6e2583e483b18d64aebd69412cf507921eee62eb513a2bfaf700bfa3. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEG931992131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16c8f7280d8b1c627f61c382deb347a8990e292c1dadff932be09f3ec02cd7eb. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEG931992133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x021564af9f5e283a1b482add20fb8f007f50bbb13eb3e03f6b2f76c6492ac885. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEG931992134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcda631fcc94c022b1862f8d540970926411c5204128af44a7d123bccefdea5c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEG931992135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7404a74ed99225152e6c8f8a115b5b9e2c2385fa702e0209fa5eb5ffcdb0b1b7. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEG931992136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa184fe93a237c2cc27f042a9fb1268ede05d504c232d2ca414816c2d2a883bba. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEG931992138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc5780464b24c99bf68f2077f8b5a18ad577b9a8226159eaff23edcc733e9531. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEG931992141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4373f51898f90541225aff560ca53c0f8fe88ae81636b8059519e5c454aeeaeb. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEG931992142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2679f981f2e2208f0bf231197ba639ba6c7fa6c2f53cc75963caf17dd84de30b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEG931992145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2322bed0d44e824f3f33230568140ccd7864df6e7a03a0870ddaee58b8a052ee. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEG931992146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf800db84063d402cf501231f6092ee4b1b6385559cefbcd8d54405578294d435. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEG931992149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca7ec37a07019584ac3d1711c28575980b1c83b456aa6a0acbabe24448e4fe39. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEG931992150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b772c81490ae896d0761dc95e26abc5eb1c8a680cf6ac7a5cabf4e5e9c24684. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEG931992151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d4a00de215be91158191bb1a5765b0590183de124f5ba7c72c159db06c6b71. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEG931992153.
The Sound of Love International #004 - Budino
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefe3c7392373ed9fbf27f17701caabb5b2d7b30e30b8666bb8b04dec419808f6. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB2XE2100045.
Close to the Noise Floor: Formative UK Electronica 1975-1984
Mannequin Records: 8 Years Anniversary - Reissue Compilation
Selected Mannequin Records 2015 Compilation