Mario Alberto Domínguez Zarzar (born 22 January 1977), known as Mario Domm, is a Mexican singer, songwriter and record producer. A founding member of the pop rock band Camila, he has won four Latin Gr
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 0x8a7ed5ab89933e43d9bb9855eec5beff75a70175078f261ced6a691fff8ec5b7. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9d8d5888-fcb1-4a13-bfb3-9485cf02566d.json and https://artists.proofprofile.net/proofs/artist/9d8d5888-fcb1-4a13-bfb3-9485cf02566d.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 0xaf7538f0985b82adbec4a3b60faaadac85b56c9bc768f3f0241c2995d569783a. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/MXF140100396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73cc2d3c8989c0c33b626094ea58a4057fd7d51595f894a3c8a4ed375954ff8a. 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/MXF140100399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67fb458257b3f0ff444bada453646c9202f2883c16f3213b54e9d981469da20c. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/MXF140100401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4be9a8f76f359576f0fd9a90ccf7c227ecbc8aad931875319f1c4beef92e80b4. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/MXD781803161.
¿Con quién se queda el perro? (Spain Standard)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x083c0987cfade0675264310520b2293a6864ae968ac38d567ab1bc2120679114. 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/MXF151200527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x083c0987cfade0675264310520b2293a6864ae968ac38d567ab1bc2120679114. 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/MXF151200527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a522575a32949c090483760cfb040f00ece117206deafdadb5a44d10fd90831. 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/USSD11700434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x085bf068cc91d4e3f4c2b5c49aaff0062d45d4b225fc5e15f2dd2c064eda0f03. 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/FRS182139260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b4b041a08e00cd5f012b749b969b1de1f56233700ef4003e84d72e854031c1e. 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/MXF010200888.
Color Esperanza / Sólo le Pido a Dios - Versión México
Color Esperanza / Sólo le Pido a Dios (Versión México)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9960118606d7b958b78a9e6caac34c42259ba6162344046c494bb65949a8922. 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/MX3942000008.
Volverte a Amar (with Mario Domm) - Primera Fila [En Vivo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x692f4191f4d688b0a44f5eb925c8dc003a53449ac0b0d9e05dc398d66139e013. 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/MXF011300384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17420eba721ff9104fec560cff20c7cfdd50722c9234dfce0c97c82419839558. 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/USQX91700753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x083c0987cfade0675264310520b2293a6864ae968ac38d567ab1bc2120679114. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/MXF151200527.
Mientras Haya Vida, Porque Lo Ultimo Que Queda Es la Esperanza (Música de la Serie Original de Tv)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9972bbd56d129b935419070d1e6f8db69924e756ee0bc6bbcf9147695e083e39. 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/USJE61702152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f3b6438bf0ed1a4b8659d95b22f337bb9b58f9bff675bbd4e29744098a3042a. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/MXF011800488.
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