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 0xfa05a3d8df770af455f34ae71f9c5b0b7c8ca49af32a888746478d281c1f6855. 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/7d1adf68-6c88-4d00-b945-d210c32d7f0a.json and https://artists.proofprofile.net/proofs/artist/7d1adf68-6c88-4d00-b945-d210c32d7f0a.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 0x51f833e8a22239693cd58983915e89083e3b3a83e60c961d1e2023040e2ab16b. 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/QM5NZ1700010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2ff8f3b13e6f328c818868d9bc716f631b91b81ef1a6b001210b5747445454e. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/TCAED1943143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd582eac24f6f46c057e99d99dd55a76e3c6322c3610384b0b31797d737ee4e9b. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/TCAEJ1907080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x251834ca5e8ab30712705db253222542f056f461895820105cb4d3b66644947a. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCAFD2007047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf5b3478106992277dc25262dbbb00348de4df7f35d068f1130e182b179142c1. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/TCAGX2387834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6aa71a11b1f5ebad97956e74f04a0d8ec4962819c9c805d50a5c519193dc7f7. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZES62471590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea8fe6124268234caec464e7bbd4e8f37b0bb7d6d5db6ebab732f8c1beb8d24. 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/QZHZ51906382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbc2fcd3bbece9e27ea011058b3ff3d4a33032a526d21c7e81c848de329f7d65. 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/QMTND1101727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18877c7fb8c1c382209e1533ae9c83644108b0594121990a81f6dca431dbdbb2. 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/TCADW1874701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x768a9d494ba91e8ee43781d434e855b65c791b9c1288b8d7476a8e9587b5c466. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/US3DF1986184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9781405f71327b5793dd57da95f66f58d8dc3174427b3a88ea527b39e627d79. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/US3DF1990028.
Amo Lo Que Hago (feat. Musiko, Gabriel RodriguezEMC & Eliud L'voices)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a22247aacd0f195df84a083f914a57cb5336b155431dd930ea97fdd857e84e9. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/TCADJ1792897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x797027b8308578d1efa8ffce16f363d20855e295ae556f964996311b7a850e90. 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/QM4TW2263924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9f36d7a91c8f881a3361b78e0b4e83efac2f99bb60dd7089da8df4b746e17b7. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/QM4TW2263928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd155b3f25a78e316038dd67de58ccbb39ba67aaed566121cff3ffe72d2af0012. 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/QM4TW2263930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e377f9663f13e397a89d0ed8ebf520158ff5df18376f93c810d0492d964b009. 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/QM4TW2260876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f774a6f8635fc2f628667afc9508a06823880138c32c5581c841c881fcf5dce. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/QM4TW2244230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0272c861e733a9210a866c07cb6a1dbb9a11c86814e2d70442936aefa5bdeace. 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/QMFMF2119830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0074df54f8265a022f48a5555cb87d7932f5fa0ac158fc29dc0d88d33075932d. 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/QM4TW2263931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacab8b49ac1a7ba7a8b8588fd25bc37a92c2c914e146b54760e378359e6ca9d5. 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/QM4TW2263932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5affb82c88ee994f1960eeec95e9951415d33a3dbe56fe59aa0af0aca4c860f5. 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/QM4TW2263935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c41368440cfcc592fd20bd56e0da0f1fcb3cef64d054fe2ae7a89860711072e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QM4TW2263940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73d22b6cd8d128f0dba0a0a6f7ac4b17bbadb51a94620ac4d64c3dbfad42db16. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/QMDA62155220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e377f9663f13e397a89d0ed8ebf520158ff5df18376f93c810d0492d964b009. 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/QM4TW2260876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f774a6f8635fc2f628667afc9508a06823880138c32c5581c841c881fcf5dce. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/QM4TW2244230.