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 0x20768af79bae7a2d0b9b1766b0cdaa716efa0890455317c75801ea417fccadec. 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/fc39b689-94aa-49a8-9a70-f78b108663f1.json and https://artists.proofprofile.net/proofs/artist/fc39b689-94aa-49a8-9a70-f78b108663f1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lo Mejor de la Sabrosura - Salsa Romántica
Salsa Romántica: Lo Mejor de la Sabrosura
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 0xae49b4bfcfba83d7a2a53a149c000a83a86b5879d26f8cfc39f69e8b6cb4d56a. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/COF019200275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa0a00c69e88306a8476df7c348d90cf04005aaa5c09497e7953012869e64eea. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/COF019200282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2d415f7470a3e1cb27aec5975d58e5ca3b22235cf97a69755f034b6871b9238. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/COF019400633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05d02308905f747eba89ea87ef377b97b03a242428f2e9ef8c1f9934eca5865a. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/COF019200281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ecf06bd981543948c2c8331653ca33b222a1b03efac86b4ea9fb114b9e0b646. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/COF019300565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa573f75a835af1d7427312f2899ba9b6a00c549f8baa924c7838c1eead1a83d6. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T02:37:57Z), 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/COF019400626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x771954eb77a34c76327877cc338d0337513923a4673840a994807f63eb48aee4. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/COF019100175.
Lo Mejor de la Sabrosura: Salsa Romántica
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f80f6779e10b648be4b7112bb222b4d40f224820ddac8eb4e5c1da0ddc7876d. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/COF019200274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa0a00c69e88306a8476df7c348d90cf04005aaa5c09497e7953012869e64eea. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/COF019200282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae49b4bfcfba83d7a2a53a149c000a83a86b5879d26f8cfc39f69e8b6cb4d56a. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/COF019200275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32b68098fe621ce4746b985d05b8646ef8afcc3b7b25882bf70564ce5c1fe23e. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/COF019200277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26bf0ce4da8d29e5198f3448bc42ab318c99800f02c070229b6ca6e8e0f8fe30. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:29:02Z), 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/COF019200279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd23d5e9e942f817382a88bbf6c170f44e6acd4aac8a14017efd2f664a798157. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/COF019400632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x645779ef0b796ca984e46d9368575e9f679b3ff29a848be7ff8b4a48a4d1888f. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/COF019400627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe768450786330cfac176db8ec78508d8bd3d74af63f96a5fe70e4da733fa45ff. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:25:52Z), 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/COF019400629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e224a2bd81cf6cc1b0ffb88e69de176c05d588ff25ea9caa30474a94e854b73. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/COF010007499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ccb42f336dd58232a64e05afc8c1510495200b1568d11a9de10872c870d6a7b. 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/ES71G1815673.