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 0xd8bcbfe8842b271cf3067f738a06343baba2ad848f1dc0a86dcc27fbc53fbe3b. 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/985df52d-d373-4f6e-a2a7-4d816ff1b56c.json and https://artists.proofprofile.net/proofs/artist/985df52d-d373-4f6e-a2a7-4d816ff1b56c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mano a Mano Jorge Luis Hotua - Oswaldo Franco
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 0xdc41b8725c6eb5eebd0dc6fe85d366813053dd9e2f40ab2cd1b1e79e022b9c01. 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/US6R21386802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e3094dc01dff05a041ed43ed691178dac8814ac226c5fc9ee9826cd739db7db. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/US6R21386809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x519c14879ec60b7a73ed1da1fb77f0e4afc972a71007500727f2e16b1567949b. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/GBLFP2133368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44a67b20be742746905429b7a9e5f559a37c8ce5a640cf7d76c594dffd1e0750. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QMFMF1401544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cbadc1e9c557a500507e8f48bb2a5515d9f3988e7bc13b407b1414fdb464f25. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QMFMF1401545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60bb3e0f71411d8f34be4265c67f7ee47f24d4d9e94a2ca7a6fef74122f2145c. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:33:03Z), 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/GBLFP2133448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc04a1428428f3939b8e9ed01aaea355fdb2e579a130fcc89069a34aab22fcbff. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QMFMF1401914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bc639a80084392b4bed6ad4ec864e0ad1dba6abb1ea41207bcef75ac066d846. Chain 2 (Bitcoin): anchored in block 957735 (2026-07-12T17:47:43Z), 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/QM6P41506217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeb6bb7e6a38d4c18c12b8115c242d39b43c48bca691b1811ebcc992ef7b2bcb. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/QM6P41506222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8bcaddcebac6cfe1abe35e63576791d835b729c2874125f9269f673fb128427. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/GBLFP2133458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedfdb7f10d48c01e05378edb6ce36ca5fc5b04b2fca2c8fe980ace555ea29e55. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T19:01:24Z), 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/GBLFP2133446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x705147b341c9d166357f12b9c782545cd99b979115fb42cdcd7ec35ec0d0a791. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QM6P41506161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d686fd00b06a3dc6c02c35a9d8736986b43c0cb94e2847488bf652d6224f76e. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/ES71G1757449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45e8a0545dbabe05c7acfd5b51d4b9869e1801119bf84976b5b3388b471a4363. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/QM6P41506319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a23a2165cd45d278127afe66ba21d31b99b9d9fc4636a4e93149d655bc56bf1. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QM6P41506198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37f7ce5f1eaaaed627f23b4677ccf49cf0c4358e69cadc3afc003a89d8709d5e. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/GBLFP2133423.
De Regreso! Ahora Cantándole al Rey de Reyes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8acef8f8c8ae63472a7c3b0c9b6abe9a2c5d5c1492cba02f7025d9070998024. 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/QM6P41506321.