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 0x3e3592573dddfb08832576250b2242884773e5b535e46d793d62995188f4892a. 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/e69d4418-d6ec-4386-a8bb-2caad727a60e.json and https://artists.proofprofile.net/proofs/artist/e69d4418-d6ec-4386-a8bb-2caad727a60e.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 0xcb91457a3cc7b95647704f34628cfc1c82afbd03ba5bbf6e96590663a33819bb. 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/USDY41896320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5057f57141fb3a445179d2ae1ccf98eded7827149ee904c07baa482dcc6fbe3c. 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/USHM91987557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8289ff33b00c5c64677482b3f5d6f4e7029ecdb695c74e292c90b09366c2737b. 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/USHM21991632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb875b9cfd1616f476232323be210fcd2dccbf5e2344d1ffbc822d75192882d5a. 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/USCGH1922852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fdaaa2f2e49070b95946f2144fd4d95176d663fb5c3a8b56fd7e798fe2f2f2b. 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/USHM81848506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13368de13058cfc351f8d95dd5ffcd6cd88ae7cacd503214e4c01d6eceb88713. 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/USCGJ1794260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b8816e73c1f5b749f7a282a5294dd784bfc8ef34efa11538dda40cdd8c887d0. 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/USHM21800287.
Medley I: En un Monte Lejano / Oh Tu Fidelidad
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1c6852554706016ec50f1ce65b6a845306fd458f962ef7966d0b7f24a866a21. 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/USL4R1827065.
Medley II: Sol de la Mañana / Con Mis Manos Levantadas / En la Cruz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93b7147fbe7b9e9511026e5eae9da8f41f41957a51b864ed287bc7b7417eef80. 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/USL4R1827066.
Medley III: Señor Mi Dios / Oh la Gloria
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7192f7ce2deb2284da1af6ea9aadbc997d52bece7703a11a9d4c2aeeb72a9872. 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/USL4R1827067.
Medley IV: Tu Fidelidad / Razón de Vivir
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3969d9a8550e24339348c12b0421407f30c0de37b705d6d4a6dc0c57750321f9. 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/USL4R1827068.
Medley V: Sublime Gracia / Jesús Es Mi Rey Soberano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac0c685272c8eb89cc2bf7d6a7816985c30d8a1074f2eeae92c57223af4676b3. 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/USL4R1827069.
Medley VI: Renuevame / Señor Yo Quiero / Usa Mi Vida
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x680cd3278eaca6cd92be80f0312e571f3be4301c58e736d161a6c160012dcd77. 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/USL4R1827070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b6625640a2dcf9ec323c8044e04f8161b52a92820965f82c9844a27265db1c3. 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/USL4R1827071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54552007db71afa91e276bf8653dee51805df5167ff9707c4937f82348b7d304. 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/USL4R1827072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0db845daa89e0bf2c2c3ee999a7fb9bd6697d37bc6870addad9fbb78940503c1. 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/QZES81949996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16957293407ad256841213e7cda658c13a0f53ec65d71611913b5decedca44a6. 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/QZHN31921531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1c7ef9401b7842ca7697b500c24bf13f9ef6423715af0fa1bd075f4dd8e1567. 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/SE6I32089783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06e84564658cb86382a1297cd343010a4556f7ebe19b2b7e688fd61893536dbc. 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/QZHN81914819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99610849e2c8b6e6216e216964e676be3fbca1ff327b559625cf857b76c1a6eb. 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/QZFYX1925016.
Mix Adoración I: He Decidido / A Dios Sea la Gloria / Aleluya / Yo Me Rindo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8393f9a5f46b3a6fcaa63085b291fc2ab5e2106bdc2726eb9a491940305412ec. 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/USHM21864598.
Mix Adoración II: A Ti Atribuimos / Eres Mi Buen Pastor / Mi Socorro / Hijo de Dios
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d8fa602caa183a6c6949afb916ca6b07c93105403075e4f34b27bd57bce1569. 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/USHM21864599.
Mix Adoración III: Tu Mirada / Al Estar Aquí / Ven Espíritu Ven / Espíritu Santo Te Necesito / Quiero Llenar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39c614eaa8f43e916e7edbd9c9cd481835507462918064d4ec7ec15375dd26db. 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/USHM21864600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6f79fe1b3e6cc8d5650c4078eb9b48ed9b70c3853cfeeacd5f2498f791b5c3a. 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/USHM21864601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd318cf2964c329ec5a38b4d850a39045123bcec67892c7369a63b31668393fbf. 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/USHM21864602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8663cf2d614b027049d05337e16dd6a88e7928ebb99c076d96c7e8fe330b1804. 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/USHM21864603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf799a5794bd13c1dc9ab430e46f0083ad3abfc249ab3c88b4c1d3332265d38d5. 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/USHM21864604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x442e5d0465c2a9c32f75392b01885fc9d876d68d90783deba2e18dcc6e4c1fc7. 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/USHM21864605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c41334923fc8a902e1b32b3889221a767316436774ed8a7a7dde1a97bd9ee6d. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:31:21Z), 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/USDY42089003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x449e44e0948465d24e00e58d803ebf8e12e0d208b99f08e6919c17e7ab1d5cd1. 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/USDY42089004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2b3013979bcdfbbf3989f77f492a9c97cdeb12f9c4b0b641a29a02a5a4ec29b. 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/USDY42089005.
Medley Adoración: Con Mi Fe / Cuan Bello Es el Señor / Quiero Cantar una Linda Canción
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05944a8ec86cef3a147add41fd9c0519b5360ec0718a1db7b57525e3c72386a6. 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/USDY42089010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1501e1844cc5ea944c47cff7fdf322b5989a2e66fa1d2d6d3d622f99954d0f4c. 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/USDY42089011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e0c14247ed035d378e43dc60695ce7bcbac629c58825485c5bd110fb96d05d2. 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/USDY42029022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d9aee325487984e254f8a94afffbf301ab8b6023a1dddb94ba88eb16d9b1644. 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/USCGH2089368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedd8e471aee90781d64c1bf551e3cb555ea986ecd7410bd67c18d22442e7c389. 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/USCGH2089371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d7d24011686724d061109d13417fb743431acc992eb20b30a703b0e1c538f58. 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/QZGXC2200151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf6a42eeb939b4399ed548765b38dd3b5a63b46312147ab5893643b0fee0d5d2. 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/QZK6M2139503.