Isolde Lasoen (born 31 December 1979 in Bruges) is a Belgian (Flemish) drummer and singer. Biography At the age of four, Lasoen started with the fanfare orchestra Nut en Vermaak in Maldegem. After se
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 0x4f1bbbd67df5681d5e7ca88f3f3ad82db81b350d0b5c40d1ad077df1d3f95c30. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9b779f9b-1ffa-45c2-9bd3-5e03a1f6027b.json and https://artists.proofprofile.net/proofs/artist/9b779f9b-1ffa-45c2-9bd3-5e03a1f6027b.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 0xcc1eb329fe74d346b24aa6e5ec4d51aba1812bceb6a9cb1a36d2a689f1f64ddd. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BEKE52100100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x198d834c9132f01d9bc8ec7a06bee5b88274ceacb85910dd169c23f76bd4f64d. 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/BEKE52100097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe0110e2b37d04c9202ef2c8c44b9ed3846a8d314c236273eb652b8cee6c3618. 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/BEKE52100113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc573b8aa319c1760243c4cf6eaf13ea37374dde1a75146d28f4086eb4e02158d. 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/BEKE52100114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ae2a40e59327831a94bf42e9441b704a81c2e50d05d753b0da24f1029fb3280. 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/BEKE52100115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b995742358fbde6e1b3f93a92bcec3ee9bbb7262d6a5681efeb720029db58b2. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BEKE52100116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5695c08c8f93c257abc93e5d3901c1670c039cb2e34dce99ac4b148fa43c5f41. 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/BEKE52100117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ae58040b45c40d50e4ad8e8966ed267a8921ccb8cbd720630b5fb1c0c350874. 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/BEKE52100118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ab694333e92452f686dcfdd06c7bcb409e2280e1fc1c226ffa8ed1e7cefcd37. 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/BEKE52100093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d4af053d3ed313f7f55ec5a55ef6a1afc0a013a22ee95a3a6fe93fe2b338a5e. 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/BEKE52100119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0ee4aa49f67bfdd4b4dc413c24a2fc099ca4dc70e4ea3e227eb341743acd9ce. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T18:52:30Z), 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/BEBY61700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f8db99e052f3f534ae4c68536f67ca246853f27025ae38c9b9db718f4df4b2f. 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/BEBY61700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe037e182aad7005aa294e61f5be0262d001a552076c2c6e6033c5cd89083469c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BEBY62100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1968fb48923a4e99cd81ffd6341a9a7144cecc4c3960c42366a3d2b958e957a2. 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/BEBY62000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeeb89a491246320326c198a1d1b1435213f718f2d59db70b7656e6dcbe4beed. 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/BEI261200002.