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 0x68473095e60a75873ead8b7697c9d2ab1b9362ddaff2873baebc874bd5430a6e. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/30f5d9e1-59b9-4b1b-b335-29b49a76cbb5.json and https://artists.proofprofile.net/proofs/artist/30f5d9e1-59b9-4b1b-b335-29b49a76cbb5.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d6be436b6580d2dfff30bb9f9e9c13823700c8635ba4135183ea56141ba3f8f. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:39:44Z), 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/CAENV2036364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1a044538a5a88111b8d31f8602fcfd4214a1c31b7853a0f7f2d9e90446b6dda. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T02:04:08Z), 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/ESA012203641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92f08007700c6699139b76be7dc4c28b283d36b917a77d6ba7ad2eebe096d207. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:42:21Z), 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/ESA012203644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0c61172aa4cf76a15851853529dfe22338d2af53a5c92e6b553cfcc92d4905f. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/ESA012204136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd567da2941e44032f40ca1bb93d34c90c2cdae4302115b4c82e4f4d22594d2b. Chain 2 (Bitcoin): anchored in block 958680 (2026-07-19T06:04:14Z), 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/ESA012204137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29e0e772aefc3a7249dcc129a1e325f94e3352283f34ca4f6939d2b9f37e08b4. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/ESA012204138.
Vasilinascha / Perdi Mi Paloma / Cuando Llega Elecciones
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x497be31eb29511005e8a35dbf5ce0c53df5f2573e6935269ff4e156414156609. 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/ESA012204129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f6779068b9a4a4b4ec7331fc3d64758a5fc384602537c37027f997c5527e4f3. 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/ESA012204130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf572f310e851a6b2cbbb5938c7eb66cedda9a5ccb50150a1b77bf415949c3c26. Chain 2 (Bitcoin): anchored in block 957726 (2026-07-12T16:04:28Z), 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/ESA012204131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb22ea76fcd8529f2c90209cf7abb1d72115a419b52f2df9ab059ec0a6cda2914. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:02:40Z), 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/ESA012204132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7109cdb804e507091f68fe44e02d4811a330b9fb736cb20c8656ae437ddd6647. 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/ESA012204133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac85a32cda2775f666f066a92d093177235b601c97c76f504872f837e0adce37. Chain 2 (Bitcoin): anchored in block 957720 (2026-07-12T15:26:09Z), 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/ESA012204134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1792af4df2d49b76dd4d7534afeb125b2b56c1527e7ae47ec32345e6150bc118. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/QZXLZ2405930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e33a2f7659dd6bbe735813d036c549b347decd29c2e0d6bc3d3e402d8bef7e2. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZXLZ2405932.
Mix Saxocumbia/Márchate/Te Espero en el Cielo (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf24462232c2e9a61e3b8ddcd4c2570edc23fddfe39a28c49a024d778f110b7a8. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/PYC842505949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff68b6706594f6a117f05fb8f4a4739b756963bd570a9995938d48a38591ff56. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/PYC842505950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2412fd1bc0ae7010158806a3f4bdabe75db3291b3d1845605b3afaffc2617a1. 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/PYC842505953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x577d5d072519e172ba34dcc7d597f4ab7fe0e3b4211beb8af0ecb615933e06c2. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/PYC842505955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aec8ccacc24d6983abbb92a85c66aeabd1263e88223332279632767dcfe4bae. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:22:14Z), 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/QZXLZ2539069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d2038915973e1e478b386110aa49f62b41149db5232b0bc9f6fa22f4145fc14. 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/QZXLZ2539071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1335efe43b94babda2ed7973805ef8abd53dbf8d33e55aa74b590070220218dd. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZXLZ2539072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x738280f78c96b3a2246af2af0759509786be609ed1d58c23ed19c8a9556aab5c. 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/QZXLZ2539073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae108ff3d577941980543ce0b534f0cde7d6243c7ce2b8f16924f70a26d38051. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZXLZ2539079.