Francesc Freixas i Morros (born 1984, Sant Pere de Riudebitlles, Alt Penedès, Catalonia, Spain) is a Catalan singer-songwriter. Freixas has released a sampler, seven albums, and a series of covers of
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 0x4253b8ad0ffd9834f4da74ea99c49f874ccaed8958b74b1153891394277f967e. 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/1b223721-a659-40d0-aacb-1e041a10b9cb.json and https://artists.proofprofile.net/proofs/artist/1b223721-a659-40d0-aacb-1e041a10b9cb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Direm Nosaltres (Cesk Freixas canta Roc Casagran)
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 0xe3486bc7230939fd91ea21233cb0458b797cf6b3910330da547fcd76b02fe6da. 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/ES17D2101295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7699b8a35441e2a4151269878c8a512fbd829e78abe10dd338ccac56af97ef27. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES17D1800579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x476c5be02f3a3af17ce9979de3632d615879fc61fa3b1087e03a6eb3635a004c. 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/ES17D1800581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x882524083325944089428473983c62eaf9a4b825f1fd8b1aacea2f6dd6cff1b4. 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/ES17D1800583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x694a0db75fa9f365d0dfd6c2439e7e39659d9035efdf76f40570d27c0851ac7a. 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/ES50D1700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c802aef386408d7de7334088a9f0bdc24e6ea20b1378845fdcfde64a0742b32. 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/FR2X41742437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2a036c9e9a0e7e4b0929dfdbef2b194e43564a662bdd7b08047d6a3d38e3f47. 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/FR2X41742445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1df71b369c8a2f5845876f4cfd0ed1c950d4482864df95428ddab1fec7936c2. 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/FR2X41742455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd6d61c189abae7a3132d45c5985786c24ff8096aa176691338e0322ed7f6a3e. 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/FR2X41742490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x455efb2150c04f7e930f07edcb625855d13ae6b99f0b5cfe02f14b83ffef8212. 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/FR2X41742491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e9cc3843ed07462e6158835ad3044826cc4ff6d2fb6a0dfae19df069266c2f1. 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/FR2X41742496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x740c9db68b5caa032a6cd6c15319edd2649b04e1247abbd9280ff4966b23bbbb. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FR2X41742498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ec32942590ababf04db03836dc238ed988f06a77e28b7aac81d8a5d94539480. 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/FR2X41742499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x235be49ffd3e11b9bb245f792e428a4a81b6ca529c1fd683a76f0a20a137ef42. 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/ES80A0800209.
Que lluny ens du l'amor (Direm nosaltres)
La Petita Rambla del Poble Sec (XL) [Karaoke]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dfa46517c9316a0d3e21a5d49192c83523d2a85343e4078a38b86891c87387b. 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/ES17D2001096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x529e17b51811c0bf0013a911a5d5ffd56be9e30869e679051d4d6268e7692991. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES17D2000980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe20dd303033af16cf09b8dae16ee3a029fa17570652015c4c7e207884476fb4. 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/ES11D2300848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc91c3060befa518b650b5ebc989d29262254c62412db79430827afff4592e61a. 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/ES50D2200002.