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 0xd2bcb9fd459407ebd2ed074b188deda3b30ee0e4052c92772b7ee1941625219a. 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/fe758897-1048-4faa-b418-2b3d51de8005.json and https://artists.proofprofile.net/proofs/artist/fe758897-1048-4faa-b418-2b3d51de8005.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 0x0346c69aa1f2da7d5bb15ea3f42fff5a465b3bc7f2f91be8ad4c0d1b18e9edd3. 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/QZNWU2066806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8ff05e03976a8f457ce91cea3a5a72b51d376df535744f6ae90f3f148510ccd. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USWL11400437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5f790c7cb9cb36b10a3fb252dd6b33c298f2114cb351a74380c218cf8098b27. Chain 2 (Bitcoin): anchored in block 960349 (2026-07-31T05:23:41Z), 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/USWL11400440.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x859b61333e9524259ef439f993a9c683a52d5ee94c2fe70d6bb026abec16bfd0. Chain 2 (Bitcoin): anchored in block 957253 (2026-07-09T03:08:40Z), 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/QZDQH2512524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x662f704807e93abb2eac10107ab105be7001599cf7cff0efb845885ab00a5d8e. 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/QZDQH2501150.
Popuri Navideño: (Santa Claus Llegó a la Ciudad / Rodolfo el Reno / Burrito Sabanero)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1741e286f65dac09b887feeaf3f6f890108d9d8f874e3a38f18bc2f4dc5e4861. 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/BK4DA2450599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb631475cdf45d806b5fa6cc77883f56edac7cbfe4d01ea5033761e50f868617b. 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/QMDNX2410737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x709344f799aaee7e59c633bd4bb736c90144761e7487be96d3ece8a66ae73faf. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZDQH2413700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb784eef41641ab373f16729fcd9711f221505864913808ffaad770fbb3a17f57. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZDQH2398877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb0fcd28f5caed06890f84cdc9155ed18a9539e0d568c9f1a243435ff987f1fc. 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/QZDQH2388100.
El Corrido de Wendy Guevara (Wendy Es Amor)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb333dcb932a14ff35a2c2aef1f7ba1506e5ff30f8d52d8b5c6a8004bc6155ec9. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T10:08:42Z), 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/QZDQH2376125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0f91d21c08cb1adc7d72f1712a58da3c2c26fb981f62c1d47f1d743df21a7fd. 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/QZDQH2372304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d7b79137d1942df2ffbeb72849e3a67c1b6ca2e5185078f409aa2960adcc215. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBMJG2220605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ea44ffa6526dbdd7e99cb87982b239ec08347050c2af97ef16ad0e823239b73. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZDQH2252168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1367c21daec96482e8aea3172d7fdebb4fb26fa9527f3a008cb2dbeff07db2e5. 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/QZDQH2158909.
Vas A Volver de Rodillas (Te Guste o No)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ff3bec1e92469f24d6cdfd81ab92a21739ea98e846832ada90ecf6a0b16702c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/US3DF2165162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c9a97267ff1895ed6238a88cff5e9c7f731d1dc3c09bfe27c436fad0bb63b70. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USANG2156083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a108536043c28d4ccf8aa94a07a63e1c5439f2d91b81f0c2375e9532d3f4d0a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FRS182070260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88c5039f827e6abde8197fc5a5c9bbded13bd2bedc0306bc04d0cc1ba64dbc1d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USANG2104140.
El Corrido de La Muñeca Diamante de Rubí
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacf0d497d27ab8f3d68b158a1e881714a11efc5d51e083df07cedaa879f57d10. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USANG2029328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79f01cc94f75b5927c692a98539000715d3c0be158f0cfe6bbcd67e829edad2d. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QM6DC1901371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0731c619e262938e710a32bfded4ddbfce518d66d0690139f6b5388efaace7b3. 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/QM6DC1999789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b700b1398f4ef5dcb3d9363249373194abd0f7afb4639dad2aab456f74b0469. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QM6DC1999470.