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 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 0xe18f3c35ca44a725428b508cac05056d860aeb8a9c28c258b30bba3d93e021c2. 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/1c68c6dc-29b4-46eb-bb2c-3f87ffb3f930.json and https://artists.proofprofile.net/proofs/artist/1c68c6dc-29b4-46eb-bb2c-3f87ffb3f930.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 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 0xfb4fd154f9dad7dc49d1c77958238ecda8148f1b80254b66fcdc3ba9a492600b. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/MXF149900030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c7ff2db3ef4855465e2f1a0b076208c17bea3a924ff06e31ab88b99b215189b. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/MXF149900033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7446249e1a87d5fb76472670d16ed9a9b138ce25efd8fe40cc20c5d7904526c2. 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/MXF011800198.
Tus Besos (feat. El Círculo) - En Vivo - 90's Pop Tour, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1969f339da232354f91a57466ce35295d9be7b680da2b87111f698291df3d505. 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/MXF011800227.
Ayúdame (feat. JNS) - En Vivo - 90's Pop Tour, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed6d4b0a8ac618d930691d916c472c16a4b9f8ff0a8977613688d8fcd3de4a54. 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/MXF011800208.
Veneno (feat. OV7) - En Vivo - 90's Pop Tour, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b432dc6a2b59dcb042346bb7b09746913c908de3766d439925eaf03ec149795. 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/MXF011800214.
Súbete a Mi Moto / Claridad (feat. Calo, OV7, The Sacados & El Círculo) - En Vivo - 90's Pop Tour, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08449f16a0c20b8c2235da49984ddf0ea93675d3dc848a7355add8525430aa84. 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/MXF011800215.
Shabadabada (feat. Fey, Calo, JNS, The Sacados, MDO, Litzy, Iran Castillo & El Círculo) - En Vivo - 90's Pop Tour, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5639e486fa67c8f5d98a8cf46153fea99ec6ba6f737f9c06220e71589d063777. 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/MXF011800242.
Sube Que Baja (feat. OV7, Calo & JNS) - En Vivo - 90's Pop Tour, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3589b54edb72f5438ef7825e2adb2a687c046de852cfef56f8227414b0a6809e. 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/MXF011800219.
Muévelo (feat. OV7, Calo, JNS, The Sacados, MDO, Litzy, Iran Castillo & El Círculo) - En Vivo - 90's Pop Tour, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ec47fb5f8abccd04ffdaa0b9a24e8cf8b8d91124a2c1f95fceab46bda9a66a3. 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/MXF011800244.
Livin´ La Vida Loca - 90's Pop Tour Arena 20
90's Pop Tour 5 Arena 20 (En Vivo Desde Arena CDMX)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4c7f2cc97284c9fd1f90a9ea6b6ceaf259bf3b29d8fdadf362a9d07012c849c. 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/MXD782400745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3a86ce4cebc3afe9ee5379bc3d80ad9345bded57d87839f0a1779944aeeef9f. 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/MXD782402958.
Ritmo De La Noche - 90's Pop Tour Arena 20
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81827cf3aae357495508b9ae34a52fd7195cf89348c6f80349e93ed1414aec13. 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/MXD782402963.
No Puedo Olvidarme De Ti - 90's Pop Tour Arena 20
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dbca7da14aa755c473ab934e275b3b2f315cbc6b692689980c28675548bfe0a. 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/MXD782402967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2724664c102bc7a208238f5b67f5c5c5dbf800fd0e009f44a57bd13cb42458ea. 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/MXD782402971.
Súbete A Mi Moto / Claridad - 90's Pop Tour Arena 20
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18c62521569122775f37316c14b0efa09d59c33f9721386eae34532926211364. 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/MXD782402985.
Con Todos Menos Conmigo - 90's Pop Tour Arena 20
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x932081b2ffc37b081b23e30767342e5eeaa7c7d710a81ed39cf2796f8b354165. 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/MXD782402987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b07dec8fca70a5537e8121ef728186f607e2c39ceeb7cd7a8e077ac65af7bb6. 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/MXD782402998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fad8513b3956c0474a8a4ed6b5529f061d82033820ae1ec4c1869d92999c61e. 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/MXD782402996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x179947f3db41cdef6f9a01edd0bfb50ce39107b7b7668c4d5ef81085cf672295. 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/MXD782402997.