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 0x5a6a7c31def8e5233413fe11ee7ecca44c58993f3f06e07201bf465195337254. 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/5527a425-11dc-40e9-9108-40529365cd17.json and https://artists.proofprofile.net/proofs/artist/5527a425-11dc-40e9-9108-40529365cd17.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 0x1dbe4e966085f70641e92639458754ad44f95d1bc3e49e626a9d66f2dd6da454. 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/MXUM72102558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbf2c4ebd9818594ed42c3bde3adb4761bbea9672dfbffbeddb0b45837dce37a. 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/QMXV71100267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bab93ce0c57e68b965cea1550948d2d63a2805fe8039e25638be42e9fb544f5. 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/QMXV71100261.
Quiebra (feat. Element Black, Buxxi, Rayo y Toby & Stanley Jackson)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15d22b6fe4c6fcaabb10418382f0f476799eacdededfec15882c83247d8312ec. 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/USDY41515632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f5943e95a6f6cba9cbb48ecd31a9c0e07bd8c0ac3857fbac9cdf613cbd3e2c. 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/USCGH1373838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x703f75ebce27572a3b5067c6a2512cdaf672c77980aa634a45feb1fbb03b7156. 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/QZ5FN2233967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x957d6ada37437d6eb2b80fc5cba6b6951802e014cad27555fb59b182bacfc293. 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/QZ5FN2234027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc06e16aca7fd0d7b596f411895f3fcdc9beca5505bd73c3c899f4af3b6ca9d05. 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/TCABZ1426233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05c9c516efa195fb0b3b25a62305ac4537e312a51520d531975d04cc961c1c8e. 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/TCABZ1426235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ff0a82286f7082f238f93f0a2d7c33be8aeaf2d0636b49f9b2df53e0222193e. 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/TCABZ1426244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x423ed4387bce03959cbbe0b3e55aabca017ca5a5e611de7f85d1d6dba2349e6e. 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/TCABZ1426245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d7e8683452c0ac240af3fd28fe5fcdde8848ee0548ac476aff4396a26ed7065. 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/TCABZ1426246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x940394fbe530528304da0f0abcd77020cc93a32b4f8168b28dcf58fab93a295e. 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/QZW9K2465934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd54f6c61c1eff40f85c125bbff488a95fb0d1a244eeffea2a8335f442421973a. 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/MXF152401547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd01d636381864d2b71715b182b31045b74098a416adededfc67e4d83fea1457b. 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/COAKK2300064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eaf879ff683e2124138aca57191b54a8a1653ef518413226f3d8b9d4d882e75. 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/COC012338049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24702c17a898a5b0abd1ac294c066707c33bf4e3c832ada68aa63b3e8ecc3379. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/TCAGL2255103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f024bfdd233216cea5d3246279232beb0a93ac6555b35bc3f826dbd63dcd811. 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/TCAGH2250444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d083002e791e5274385167c9e267564532e5200d2067ed0075523e92c5880cc. 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/GBKQU2094291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33a7aab7c562dfeb5b95f44c4426ae7b779315b523ca19dbba77878ac4ec1185. 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/QMXV71100303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bab93ce0c57e68b965cea1550948d2d63a2805fe8039e25638be42e9fb544f5. 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/QMXV71100261.
Cómo Te Voy a Olvidar ¡Edición de Súper Lujo!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefb95d893284a7ac533284ce99220a779f9ff2049668b5d69b04fa0cc7a6293e. 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/MX1721300416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefb95d893284a7ac533284ce99220a779f9ff2049668b5d69b04fa0cc7a6293e. 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/MX1721300416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ec4fbcfd3a51bb01d1541a1ba45d387359cccf33e8c1033ec7cb4b8796914bd. 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/US7VG2090305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55d39a1c9cc11c5c3ca9cafddd0f8616a2e315cd26fa3d419ce5b200131f44b6. 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/TCADQ1896643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0c3cd357f0bf01e184bc59727a92f2917a632f1a403d9593a1ba69f39ef7c17. 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/ES71G2335520.