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 0xbf4c4dbfdd08fd08788f68eaa76f8c4e6b639ecfe973a4e29d4ba56aa651416c. 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/e11ead68-4d4d-4dbf-86f3-422ffa1b5804.json and https://artists.proofprofile.net/proofs/artist/e11ead68-4d4d-4dbf-86f3-422ffa1b5804.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 0x05ca98990c86fc5a3407623f309c3b092e32953d5feac15a56e84a434ed5ea46. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/USHM91675105.
Mariposas Amarillas de Mauricio Babilonia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18f2fa64a1c01afbeb3394ada7e7c5fcfd6ebf47905fd707827868cdfe9b5d73. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/USHM91675108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a9ec5a38d4784e8a4c184196c0ddef5800592927f07ab691aa23608c0f24663. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/USHM21791383.
Algunas Cosas de Ti Que Se Merecen una Canción
Una Forma de Energía Que Ilumina las Cosas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc27b6ac666de946a0e12ca3b8c7fcfcd8909b609588fc146e4058599d6c4c741. 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/ES71G2009801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe6ec93dd89053e9b0fe5b8f487151838bf401cc9de3ee70c432927a0a1af636. 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/ES71G2024458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0744bb08d92389e81ceebba0330a3f1addb60b02557b9c5ab66eb26c831455df. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/ES71G2024467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13c47da944cbd0483d0b4883ac77d9a4d7c86491fbef2b8a8491f6f2bf145cc4. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/ES71G1928165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c6af1c5df816e388e8ec4693214eab45a8170c312bc766ae81e359593a4a413. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/ES71G2024464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa40f565b0550c4f83479dede73a481d7339b92620c7020ff1610454e9d0b92ea. 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/ES71G1942195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aeabc17a2e7a914d47eefac17048b74679421e0268c5b1f01c05d9376b3d5e4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES71G2024466.
Mi Obra Maestra Está Ardiendo en el Bidet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ceec2c82595d74e991f0b2644db0576ef87a98e0a8efea25cd110eb9715015a. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/ES71G2024461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8d89ae5a3ab003d85767f2069f05487c934d5909a27b2b79849cfad0dc15b90. 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/ES71G1911286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79bbe90cb0f87f2bc0d71adba4f475560551660b4ae4135f7b36bd0baaa052b3. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/ES71G2018354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x083eaf49494bd9d5fdbc984b18fd560fc07339340bcaf16936ece70eb92f2c67. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/ES71G2018355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15a60ebf3dad64218b7694ae62351b069447280aee0bdbe3c4ae836efd5d695e. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ES71G2222093.
Astigmatismo y Miopía (A Todo Plumón) [En Vivo Desde La Noche de Barranco]
Quédate Conmigo (A Todo Plumón) [En Vivo Desde La Noche de Barranco]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15a60ebf3dad64218b7694ae62351b069447280aee0bdbe3c4ae836efd5d695e. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ES71G2222093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd07eb0f4916dfdd6472403de0c4388f110250f17f2cfe60fb8dcba9d1aeeb897. 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/ES71G2506171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f301e513f80d3eda0564d16b98a83b9c352b0559d24d665cc52d6c0427a7f88. 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/QM6N22566334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a16800d99e034122f55d78aed6a8d72e41581ac9695f778ab5133a9f907e02b. 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/QZ7362000294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5eb1628eb3135bf6e975641c2b9c875a4ea0462fd76cab3b537c9b70349ec58. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/QM6N22258981.