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 0xbef1d03fcd832b8aaeac490a2792a08d03697f139d7c7a6aae5ae502a46596e0. 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/fcf30e6d-37cf-48b3-8e64-fa608adfe7af.json and https://artists.proofprofile.net/proofs/artist/fcf30e6d-37cf-48b3-8e64-fa608adfe7af.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 0x271e1dece82f472fb8c40ca977e728edfa8a0564cd2f4d02b61efdbfa00a37ae. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/SE66N2258281.
SU PODER NO TIENE FIN (2022 Remastered Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a10138b7546a3d68fb6d2f99157dba6d8a4146fc2d3e90cdfd619e1f237d288. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/SE66N2275313.
TERMINA TU CARRERA - 2022 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd88c9b586702c2dd0419888a98e43235110d41bd046e26fed03ae95ebbf51b6a. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/SE66N2275314.
NI UN PASO PARA ATRAS - 2022 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x752ab9396b14a15256ca4a5141b6b65cf1c71ab7927daffe346247dce2299911. 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/SE66N2275315.
TU NOMBRE LEVANTARE - 2022 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6b910d9999745b146db472b53b164570408bd7cdd4fe7098b90d55f91240062. 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/SE66N2275319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8527f7678365777b17faf0d8330947fbfb5f1fa076825d3ac08321b6deb892a8. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/SE66N2275322.
TEN UN SUEÑO PARA DIOS (2022 Remastered Version)
TEN UN SUEÑO PARA DIOS - 2022 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x657775da2068c3d06c227d2bb1f908c7c1c1d0ab3cd98e3f40bf6a53bbe85706. 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/SE66N2273566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aecc2b7bb715ae1e9f390eafa151d754741fe01c2a8e01483ffe75a6ee0609a. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/SE66N2273567.
SU GUERRERO YO SOY - 2022 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ad50e41293af7038d3d30cfade103fb0c63985206742b468b3b37d0766ad1cf. 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/SE66N2273570.
ME ESPERA EL CIELO - 2022 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c0b11809c3b2bd114f5e5f01cd2c3c5512f095b64738660fa098c004da47e83. 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/SE66N2273571.
ES TODO PARA MI - 2022 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe650e086102cdf2e4d83a7afb760733d6888562311b0dd86cf84335e5837ba77. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/SE66N2273510.
LA FLOR SE CAE - 2022 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadcd6edaff1eb986a2941e475c7d599830295c10900df817c886943f280fb9f5. Chain 2 (Bitcoin): anchored in block 958668 (2026-07-19T05:16:11Z), 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/SE66N2273511.
MIRANDO AL CIELO - 2022 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x144376d9b50ed47af0aff48b3166ed016a65043c9a86aa238c48ab7facc1f415. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/SE66N2273512.
ESTOY MARAVILLADO - 2022 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59cfa02f430e77a0285d5cabd733b3ea8fffa848ca8d63b75955e9afa6d9e517. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), 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/SE66N2273513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b8ad97f59d5f13946b6e4cbdc182a00be20dccd7f8368b2fbe9423cb4471033. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/TCAGS2221064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x763da6f2497a212e3f9d1b63150ce4832c338c50fe1b9e5d2f557e9431c64a44. 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/TCAIR2499155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc38e74b521c39606f4d24690c3cc8567e3bc84aacfdfed3efdcf7d7d549fa2c4. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/TCAIR2446443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d1b9e22d814e4cbd86eca67611666907db2436753df622c08df57273b0bfe16. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/TCAIR2446449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x924867e8652dfbc7b8e12893d3999e7079f70ee49c7b378bd33debd6a55ea15d. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCAIR2446460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47529555c6b72ef8e9d97515459841dbfc12c74c0d9606e713b3069d12c88047. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/TCAIR2446466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1136616ec85c0675b9b6752944488836b2554bb94b5a188ed9b866361194db89. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/TCAIR2446471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x906eff73c853cba9f4f591d765549e4dc5a2a92858df2a82882fe7d45412a063. Chain 2 (Bitcoin): anchored in block 957558 (2026-07-11T11:36:38Z), 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/TCAJJ2584653.