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 0xb0dd96a08b62923d240c11f22bb5f65464ef532b1d7affa5fc2341e36591d1cf. 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/89a9b09f-5321-4ce8-bede-df3fcc0134b1.json and https://artists.proofprofile.net/proofs/artist/89a9b09f-5321-4ce8-bede-df3fcc0134b1.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 0xb538e209a023b686c1efaf9f3c23a245f2d8c6ae31c9365dc3d5bdc2804fbc6f. 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/QM4TX1883604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e1eb9b0e9a61306be22d423bb78d335eecda4063585940fa40be061ee20638f. 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/QM4TX1883605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3bb5834a9f72e19ef657bad595ecdf31baf38417130f2dde5c8c38073d184ba. 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/QM4TX1883606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa6341753ffa460cc4e8ef7ee9e01109af957d417ee303a310221c7ad95c18e2. 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/QM4TX1883607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe177e38b4b66fe69f30b64a8d1f6f45e703d32cd2d1a3263767dfc8dc25f16ad. 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/QM4TX1883608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30919636a6bb826e2106efb3738a35cf3b72f7e34c4bb840d3f9c99f8c4abdb6. 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/QM4TX1883609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfff59ac6fac537c4255f8a139c6a2a110a43e9bbfad7fc35e11b3c906d8ed424. 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/QM4TX1883610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdc783de87d1db6a309ae2648eec3f094e783291225fc46fb2fada6977e13fe4. 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/QM4TX1883611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0017860d6b97ff1e5633eedd934c9fe30d52043c76863decf5a882b9367040a5. 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/QM4TX1883612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53db175d1ffb3f37808eee020a0a81348d2e6ff6bf6485428c01964acbc36412. 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/QM4TX1883613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f5618da0a5ff670e48531a3bdd97efe6959043efab95ea9f596df41dd7f3b2e. 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/QM4TX1883614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab75949b46e1a83f267fbcd337e874adc3bf36ea43d1fa25f66330e3ff93500a. 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/QM4TX1883615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ac1958e10ea27ffc2ae57481a289f81f01a92b420a64b8fb049b8aabce7e8c1. 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/QM4TX1883616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ea967ae2430b81e243b7803367633afe108e903dd20e8042183214c2b94ed7f. 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/QM4TW1736212.
Mix Manantiales: Rosita de Olivo / Vuela Gaviota / Las Penas de Mi Alma
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf660da6d9bfd3d74ffeced3beca0a1c04bca37d99870d3177fff31c4e46250f8. 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/QM4TW1736213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x641d986021549086d92707f0b644eaec771505a24b67b08f3eafe84ff9fc4828. 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/QM4TW1736214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x753753f91093dd0efc48d01e3dcf4cb2fbaba4c2ba18fa518de96fe16abc5328. 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/QM4TW1736215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f1618118d31ed10389a5b4fa4d8b3e94e97f015e1383a5bafceb7da63149c3d. 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/QM4TW1736216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfceecb06a6d15e4c4d980854cf5ab945acf416c46fb5f250ba63cda23d8b2f80. 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/QM4TW1736217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7756d473b16652d0660a50267166550647341822b4da190576ab7d2446b0356f. 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/QM4TW1736218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd503675b4a77bc6172132aaa7c70457379ec68cfdf434d2768155b4399163780. 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/QM4TW1736219.
Mix Ranchero: El Rey de la Pobreza / Luna Perdida / Sabes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc569f49121cb0f6358dc34943905b63e2091c13520a3949dd8e73201dc46f96. 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/QM4TW1736220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3155bb0e219299f0e165185d9533231716e19a0a7ecf7c582a31df8d5a57997. 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/QM4TW1736221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc919d08f6d154e500998657df4eb34d23e07402040769ce9f9825b6694142bcb. 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/QM4TW1736222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x196b9ece42680cd36bb67d3e26f2d9316e32abe65c907f1bebe4ce9593b0c644. 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/QM4TW1736223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4be17f6491ee01b81c104020f53b59198544ef6aca776903614ec1b56f093b2e. 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/QM4TW1736224.
Mix Oficial: Como Olvidar / Y Te Pienso / No Entiendo / Debate de Cuatro / Olvídala
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f9901eaebd496ba00d177a4213aa194eb672d87b20b69521b8b5e99d87de2a3. 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/QM4TW1736225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad4e71e7d8212138df63b1e3674ff026229eb47b8001d142fc98baf0ed43c272. 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/QM4TW2447917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd9e5aa35c7fb413384c049fdaa936f6157ad528c694a22e46e01a1eddad0c2d. 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/ESA012069783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fbe3ab267befeed6e2a8d99b5b80b8d71ad8715b0ed9c2b59b718ab525af310. 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/QMDA72197229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dbddf32eb40508258cbcb84218606868c789ca19779771914e9464b262c6f8a. 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/QMDA72143941.
Megamix Romantico: a Pesar de Todos / Mi Talismán / Hechizo / El Hijo de Nadie / Paz en la Cama / Ven Hacer el Amor Conmigo / Porque Tú Eres la Reina
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ab2b3922279801e62ae924bddeafdd459d06a01798574e9b0eaf7bdf298e51d. 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/QMBZ92004202.
Megamix Bailable: Y Te Pienso / Debate de Cuatro / No Entiendo / Mi Eterno Amor Secreto / Como Olvidar / Basta Ya / Olvídala / Rosita de Olivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbccb12cf611c6d3b58da2dc5aebc84fbd4ae3b07ab31f218f065b3e1c8a58a90. 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/QMBZ92004237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc565d9c6ec4ee3d6663f12d8aac39258ee205c90abc3cc00ac08ab135f457101. 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/QM6P42079183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c9887c859252ea16b8c0a83725f65179c227ae7da8ec925779d99640232f2a9. 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/QM7281970113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18009ee30d59b72d3042c1b103ec7cda08b2f37e835e4d83031462d2a3b17482. 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/QM6N21848738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9f8566c89ea508e352950d13aeed62e4dadb9c8cfcfde25f02a8ad95a100528. 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/QM6MZ1805615.