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 0x83a01007cb633a9ea9d11d7e47638df5308c3032bb14d3b1d80a878b426aa9e9. 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/86f13553-c9b7-4188-b0ff-6357358642d7.json and https://artists.proofprofile.net/proofs/artist/86f13553-c9b7-4188-b0ff-6357358642d7.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 0xa1f4900107ef9d19a299254e5c4ed5222a19a24ea3c96daba7fe4267d3f20f67. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/ARG991026654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7298d9e343695b2e8d11ab12db92fe61bcff1a5a1095d52408f44dfde06a531. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/ARG991026657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85cc5a00d40e6dd01c8da299bdc3663119c7ed8fdcdb1084e2e369ffc9ba3b7f. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/ARG991026661.
Eh Fantasmas... Me Habrán Visto Caído Pero Jamás Rendido
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfac3dc24ef0e46953ac87c8218af09eb847babf1791c7846f73c2792670397e9. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ARG991025996.
Somos los Mejores: Y Que Sigan Participando
Somos los Mejores... Y Que Sigan Participando
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3da7f8a484180124b4b1223ca8f80e191750a3b6bc86c64a4a79825aaa242e7. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/ARG991034718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ae29981e14af3daeec0204e5b042d45ae4bf59de3023af4cd011a981b7b759. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/ARG991016099.
A 30 Años de una Pasión Inexplicable... Solo He Nacido para Amarte
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5852185ac876970cfacf627a34ef7851d3c13db9394f21ea5f3cf259e9bfbba6. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/ARG991018648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15cd0f2aa2bdd5854e57c9aabcea3136b7453c3254286b09d7ff9cc578ce3aac. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ARG991018642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad495d7fd510a96fd03e2af0d3ba17daa766dd3438021d68f5c7cdaa599eb0a2. 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/ARG991027949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca16c8d76849445a96ebe3170ea9f78d8fed3de609b1c669087b95795c52157f. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ARG991027945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5739f984f132d4488ec8ce764b26c1245042fe07fb9982641167d31b950ded65. 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/ARG991027941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74928f4d867802091b1cc3e4e0ea38a7f6ab389884b46a3e5b9a7dd248d95cfb. 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/ARG991027942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6174358d1bf7e39b100b06f2710cbabb8067669c7268950b3a31a468039054b5. 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/ARG991027943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2445aecd01784b0cce0e78685740921895311a4b4ec48a8d6f20d13a73c838d. 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/ARG991027944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca16c8d76849445a96ebe3170ea9f78d8fed3de609b1c669087b95795c52157f. 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/ARG991027945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73e17f08f8e714a51ed40deeae26fde0566ed2c36e50feb0ee4ad4e68a3db3bb. 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/ARG991027946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4207c0a1d68afe5b0718c9e6fc940c5db773ad6f76bdd5406bd47e46a2197e7. 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/ARG991027947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad495d7fd510a96fd03e2af0d3ba17daa766dd3438021d68f5c7cdaa599eb0a2. 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/ARG991027949.
Persiana Americana / Tratame Suavamente / De Música Ligera - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfa4f29d0a1a6b7ca62ec2ec1b412dfbf0c2c1a9c7b8a0088bc84d40fc3e9715. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/ARG991029314.
En Vivo en Joya 2019 (Remasterizado 2021)
Cumbia Mix: Invéntame / Mi verdad / Inevitable
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f38f9f62ab58becd1b0da855c05126109b2bf493ea7b72d19e01094fa5aaecc. 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/ARG991025405.