Romanthica is a gothic rock band from Barcelona formed in 2004 by members from bands like Embellish and Ironica. History In 2004 the band self-released their first demo Al Final, followed by a second
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc7bec7d26c944adb1afd2d62cfc72b1dbb7becac87d24ee2d58de6cf848d3ad. 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/0f152e7b-e104-4f1b-9786-449d3606936a.json and https://artists.proofprofile.net/proofs/artist/0f152e7b-e104-4f1b-9786-449d3606936a.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc702a03b2ecbc4e6df97c6eb6fd978b4cd4d29ba11aaa2d03a6a406a09e1563c. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/QMDA71468019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eecd335d959621848b076814969198d24687c1fc0ebbe2c5cd7b8bcc5de396d. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/QMDA71468024.
Músicas para el Fin del Mundo (En Directo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bffaf58208d2f292d42d055b0662c71b6ed41eea3e740fcfdfa70062bb4df85. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/SE6XX2300501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x037fdd687432dcb0c6184fab857719dc59e842e55ac03e61ccc428a38a85bb5a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/SE6SA2492474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64c2c3552802a59887c5d00abdd9321f05ade25fb4ac830cf7c8f33e53596275. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:18:02Z), 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/SE6SA2492475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc00134a2e3470546f9eae20750d969c4e32f329d8ddd35c7183258ae61543fb2. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:18:39Z), 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/SE6SA2492477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa553917909e650223c7b2cf628a10fce3e749b4f7abd22aa7d84a4e782f87688. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/SE6SA2492478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a11049116fd4d7640b85ff8e967f48dbfd5d92e8c1b03af66055880110e0a81. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/SE6SA2492479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cd44c48cbf7cd5fdfa71e57eda9fe1b3aa109301e67a816753764a57816f392. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/SE6SA2492480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a06033f31a198dee002e96fb5ac1363bdb5df4c8e0ece72fbf97565ccc72733. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/SE6XX2543842.