Ex:Re ( ) is the solo project of Elena Tonra, singer, songwriter and guitarist of the band Daughter. She released her debut solo album titled Ex:Re in 2018. History Ex:Re (2018) On 26 November 2018,
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 0x38f18632ee782c52d60d038bf86f56790acdb670fd0c7130378dba54bb971131. 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/9af49c4d-3970-4ffb-9417-6d564ac6f73f.json and https://artists.proofprofile.net/proofs/artist/9af49c4d-3970-4ffb-9417-6d564ac6f73f.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 0x0808656d5bd8ab76a63789c9bed45cd9e1f6db7d9f40902fbdc0c23a7bb7f825. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/GBAFL1800291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x957af2cf2c7dd8f9bd1b05756e380869c56854e0250ba761fc5e6b8ef1ac45bf. 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/GBAFL1800297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a7128737fbc1b40a9eaeba37fd8187f3baf967e34580dc324d28fa62162dbbc. Chain 2 (Bitcoin): anchored in block 957573 (2026-07-11T13:43:13Z), 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/GBAFL2000457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf2c24c6c8cdb4e114c5713f4492a42a4e369852e960b3b0d2d15a101608447. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/GBAFL2000458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x825c7791a01dda70558f94aa36b413a49b90828330f056964ddf71c95bc1062d. Chain 2 (Bitcoin): anchored in block 957554 (2026-07-11T10:39:45Z), 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/GBAFL2000459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec87ae0b67a708ffd883e69efc8ec913765f02d794ec1d47d70b3ea65a5fcc1d. Chain 2 (Bitcoin): anchored in block 957558 (2026-07-11T11:36:38Z), 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/GBAFL2000460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cf95eea11856ead5e79020d3f7cb9e3cb8c76d6201368b2680d274b4e6e39de. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GBAFL2000452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eedd1b6d6ed0e21c5f90a5a865802d1a47f2a33796c820ba786e7c8718b6f0a. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/GBAFL2000455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76c794906232e158c5553baa40794a8c3d8e879bb491dfb3769ae8b92c05d8d1. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GBAFL2000456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a7128737fbc1b40a9eaeba37fd8187f3baf967e34580dc324d28fa62162dbbc. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/GBAFL2000457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf2c24c6c8cdb4e114c5713f4492a42a4e369852e960b3b0d2d15a101608447. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GBAFL2000458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x825c7791a01dda70558f94aa36b413a49b90828330f056964ddf71c95bc1062d. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/GBAFL2000459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec87ae0b67a708ffd883e69efc8ec913765f02d794ec1d47d70b3ea65a5fcc1d. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/GBAFL2000460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31544e8cbe9774a8d1495b7319acf39b59264c262a83d0319f5787b494ec2e07. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/GBAFL2100055.
Bills & Aches & Blues EP4 (40 Years of 4AD)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31544e8cbe9774a8d1495b7319acf39b59264c262a83d0319f5787b494ec2e07. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/GBAFL2100055.