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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0abd7c4d835ccd401a8d33b5e83ad4b30ce2c7c4f78d1e0ed1ee385d13a6e0ce. 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/3679ed73-2c22-4418-b906-b0c958096fee.json and https://artists.proofprofile.net/proofs/artist/3679ed73-2c22-4418-b906-b0c958096fee.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Cuando Tu Me Bailas (Remix) (House Version)
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9523e86d6b1e85d88018aa1f7108672700a26c8fc6531c7e77bee806e881aaec. 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/QM4TX2001170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe04e718a1ba6679d95bb0de2ef131c695f4460f26b55fd9cdceedc1b0b6cff. 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/QM4TX2001171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e291e544af23667538de1e5929f27784efa7119e4cfbc7ae41ab8a329ef2048. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QM4TX2001172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2d2562139f3bb1693c50317db53825571da962b66acb8520d0624549e6709ac. 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/QM4TX2001173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe42837ec06f4e60b02871f7188fe9b86592613f0abaf88b9a80579668fa5ece7. 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/QM4TX2001174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x170fbaffd5a0e1135132ebbb3f59ef5e3bbbbd2848a43f7d897d519b2c59cfa8. 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/QM4TX2001175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x424421e8850035d1c8937a95bcf93d92032b28e20b24a3643179e7491432b72e. 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/QM4TX2001176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a871b0be790c27f8c649cb13bb61067fd6345eca8fd4b25b752cb7153117446. 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/QM4TX2001177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f72bd574ae38cfb5279654b84586256efd35c09e3b53834142bdf19671f337c. 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/QM4TX2001178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bbd7a08041c618022dcbbf31d6c2e18b34a93e6d1e79d674318847bc56784c4. 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/QM4TX2001179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90efd554e4e3979e96cade1a97625d0d8028a2aab97565be871d0f7fb81254b2. 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/QM4TX2001180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1f1a88418ccd9bfb84bd77a69b192c02fcaf0c803a6eb9cdf32d81e1588dd62. 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/QM4TX2001181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x431bbaff816ec9255cafcc1406432bf4a0eae2571c3d440c45ea8c9523e3d7fd. 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/QM4TX2001182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf23d9e6232225bba10f2b408fb4d7630433ad63ea3a7cd44ed616a2946d958a. 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/QM4TX2001183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d604084c6ed4cc49c2ae6b50d5ac4c4195da4414fbda4d01067c6b0fd269cb6. 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/QM4TX2001184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a60466fd00fc7d78fc446d79ccc10a1aeb2b6a95f1038c10a9cff2a9c549e0c. 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/QM4TX2001185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39f2c799edcf89428cafe7f4ecda609cd08b6936c3faa1ab21ec65ebc5ea60ae. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZPZC2350428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a3cb81cb4fa0018c8146f3656e561317472c5a111e4c9c19fd4805ea2bb2902. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZPZC2450309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9ec8cab71f8139335633efffa42bfc084761f559a235ec8ad2fef69b10d3018. 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/TCAHC2327101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5de3173c0e9c3ab6a214c067cc983fe202bd9b97796491f57febb3037046994a. 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/TCAHC2327111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ee004be0a31d34c573e5d0f8112097ccf9a6621417d0d77c3fb5fba2b51dd1d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCAHC2327119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe0ca89aebbe13a64688a62ce9552df2d18919e35540a2cab377aedac428e0ee. 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/TCAHC2327130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x649c74710662e7570014853b6312e21cef98d2aded1ef5c05c8f3fd54df2d683. 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/TCAHC2327215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad3c5ffbc68b676f5a7712064a97b6f79002cdbe26c7f6dbb1a636838dde6701. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/QZPZC2150050.
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