Dulce Compania is a performance-theater company based in Berlin, Germany. The company was formed in 2003 by a Chilean, Marjorie Ibaceta Chau, and a German, Marko Bubke-Chau. In 2007, the Chilean Gonz
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 0x3f62d0ac76c25b7a8742946c0aa3cb2d5acf4c7b976027a061df90a366360472. 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/7e22472e-d2af-476d-b37d-4ed0096f3d5c.json and https://artists.proofprofile.net/proofs/artist/7e22472e-d2af-476d-b37d-4ed0096f3d5c.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 0xc50979141b48b8d038ca7db81a731ed5976951872aa3cab37da97a7062ddbc00. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:54:00Z), 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/ES71G1942954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56926fd6a764e3c4257055f13aec3d93994797d9fd539952aaae41dedfa1ce77. 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/ES71G1942963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b9e906f0f0ca4890b147ce55de3d7cceb9ec4eebbf9064714b2b11329eb06b. 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/ES71G1942965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99a1d982ae8b2aeb0eff186b1e2f66d629dcb658da490fd672835465a1878503. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ES71G1942966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e1fdd6a2f00845f64d322a26209f1d83b268cb6e05973e0e7a6970edb725aac. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ES71G1942967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacc2a1e3942b4fad7b0d244d087b0de7ea52f2775f83e65ced0c59a5fc60a21a. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ES71G1942970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ac7144ae914544cf27a182b6221ffb2c56f6dad9d195b1dfc35c1b57a151ea5. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:09:31Z), 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/FR2X41751466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f88ea5d94a67acd28919c2d946394ce21055d82ff680ba20774ece851b7da9. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/FR2X41751468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45c635af157dc90e49e369b2e72c86d8e02bd417c69af728cba872937510293f. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FR2X41751474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x976653b151832bd2edb737216ef7447f33010cd384c27d980791f8139fde07f2. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T02:06:39Z), 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/FR2X41751476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6280423bdb41cc6d6b4fb49871668b5106b8e79ebe6da6c687fd1a56f50e6f07. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/FR2X41751486.
Temprano Yo Te Buscare / Sin Reservas / Vine a Adorar a Dios - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a04e197ddddf19448eec8e8e51d20660ec32a6d6649e1b846bd02e90c8e9dcd. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/FR2X41751487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00ab3b28e1156142a3a2d5eb15f7a5c076884446edb96c959355df4206c16d4d. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:05:40Z), 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/FR2X41751492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb3e63b30cb34420fecf9d4dd07b9eb4c73f6dc729b374fc34987d53c35229c6. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/FR2X41751464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70b2c45823f718a14d34d53766aed4a6e852f6875188ead3414f866bb0e5a19d. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:48:38Z), 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/FR2X41751473.
El Espiritu De Dios Esta En Este Lugar - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0785af87efd86fdb765a6aa2f07a5c4cfccd05996acdf6d62485c4d7c9994aa4. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/FR2X41752172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x702ade3c7dc62f3d97b2ffc7e32d77e5c905435e7905171e469b63685d579ef7. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:30:45Z), 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/FR2X41752149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x293efe791fe14ff8fdf19b0012511c2f37dfa26fe6f8932cc3e6ab9476b3ffcc. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:21:35Z), 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/FR2X41752155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b20ed70d1e4a77997f0c79b20193f9bf4108c662f7bd74f1cafd2b30488186. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/FR2X41807757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96c64d349008a67879dd848037b5ffda3d3c8e766d8b8231a1f70b51569463e5. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZP7F2520652.