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 0x1c88f13e6ea0459386d4b81d00ce5f1da64367e14011f1f15e9a374fbce40120. 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/6d3a2a2e-8f36-4de7-a8c7-a90aecdf9579.json and https://artists.proofprofile.net/proofs/artist/6d3a2a2e-8f36-4de7-a8c7-a90aecdf9579.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 0xfe710b4667a8fce2c6dfe93b3a3bf8c70c641487f15d454c1f1e43f25b4f084b. 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/QZSYP2477630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03ecc21ade60caf52e1d888d402e128bb82a34eac86080cfccdf51d3540e0331. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US7VG2547861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbd84fdfcb2b5421306a24fa1b858c2bbf0df05a32590f06c837f1a4ed8c2aab. 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/QM4TX1707719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50c68010fcaa6645c95bf4ee032b5fae2a7e401b8960f0dab3b17dfda5192d75. 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/QM4TX1707722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf794ede0dd8dcd9c936d77a8d8e835ea0656374465219665fc7279e1c333f2. 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/QM4TX1707822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee6d98a51f09d88a936ac838535acfe30e033beb5cef63a194f0703e9b599209. 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/QM4TX1707825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8d25ebf756d2c7dc8640bf45d297f67dc1365f7c3dc74851690578d25be964a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QM4TX1707733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f92002c2ad8510e3fec837f92da28c7edc39647c71755cd8c5a1bc50277367a. 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/QZ7R42556266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b567a59a143505a8dd043d0dc9000668e1b9fd53a30f542b7f714e92e13b841. 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/QZ7R42556263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a35c16a95f4653006e1ffda3772b896b665c758cae6f5f7e049140c24b20fa1. 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/QZ7R42556253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x735201233fea95fe12846704342412dfa75552af53fdefd3ba8d757b7fb18e92. 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/QZ7R42456252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef6fc1095d138d6dea92117fb51ad70b95eb956409a9da9e22e02a8b0db2dcd9. 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/ES64E2410854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d2012b546e52c92f38551cb66ae2d7dc64b5047abbff0b9702d38bc3bbabceb. 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/QZ7R42456081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8daa647aaca8e1a9564c4f83791610227201b1e0bb521bac281fe47be7bc94b. 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/QZ7R42455746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e6d6de8bf8f462d52fec4e4099dece823bb6431f097f299ee734604ea7752ae. 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/QZ7R42455753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08ed94b8489e9373096aedf7e0d9d74a2438d8579eb48762a02909bad090e8cb. 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/TCAFJ2156802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d834edcd1016c0a1fe27f2989d6c8e7880c9159bcb6a629d63ad50c4ae5d34e. 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/QZ5FN2012395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefe9b4ba205e505b924ae6a18c3608f2ae58c8a3c1f824b03b3cbf036921eef7. 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/ARF102100063.
Culo Chapa (feat. La Perversa, Quimico Ultra Mega & Haraca Kiko)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1353a2aae36285f9e8b7867196d3a6e7d89c057dacf7d8c74348aef98b64022a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USAT22201143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fef591f9e41e5770a232c34ea480644d50d44e3631db64581ed28f09ff51f58. 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/USUYG1443721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd5a8b66d13527f423c18e92c84f89b33c396deba6d9b9478bf2c9aa39c54c11. 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/QZ5FN1976126.