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 0x9f8c89d0564d06cd94d5c1c301149b2e71602f265ace1cca00dff4dda4d4747d. 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/d108cc77-4c11-47a8-8da4-5d8b5cd2e5fa.json and https://artists.proofprofile.net/proofs/artist/d108cc77-4c11-47a8-8da4-5d8b5cd2e5fa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Los Relámpagos, Vol. 4: Reflejos de Copla
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 0xfbde2578ca4a6cdb25b66c1d0ed8e971ba41eae73ed2a7995944530ef973bb3b. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ES6341800144.
Y Sin Embargo Te Quiero - Remastered 2019
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42d985203f740e020ebfaa91859f0628f5022686046721f5e22485ea824b59d9. 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/ES6341800145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4850962a3da86d3addda0c9d23195e7e9664557a1a8732b64ececd8171ec8c6. 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/DEVU51810923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dafe79031c4cc0c292176edbf2ecacfc0668855d22ffe91ec5f678ecb064c7c. 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/DEVU51810924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f7db4d58ebf0de983771b0be66a2cc1c2879e4dc766733022ae5833a0f7ec34. 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/DEVU51810928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6619614733fe38b31f79dd7db9f962f3218fc562f8eb3aa5fea8b88db1a86cd9. 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/DEVU51810929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2afdc30aa1a68e41d563bcaf35d5ddaf13598eb4cf6d9c31e7fb2003381426b. 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/DEVU51810932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27d878df7ae4dc1e37200704b03cf4378fca5679d7c3f36eb7b6abd1c131ed61. 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/QM6DC1548012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dbd5d8e99c0746e7b77c110c81800e88b97882bfb84b934d0b83bbe1295be71. 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/QM6DC1548018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x029a9333a010114223e9dbddcfe60fcb0764152579894861d878138c6ab81bb7. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/ES5106500015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x066540cb8db78d6f30fe97033e07eed3c093c766562e1f5074a1960b958e68bd. 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/ES5106500016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab3b4ad744ae6d7833c227c1770cbf71ca27b7a563bd0c3b4f1a19fbe3984fb. 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/ES5106600022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf611e3fa2bfebe4e3b73619b0cc5f7449befcefa29bf3c1e77317770e3978a66. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/ES5106600023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc516556f7030fd3046db6f200ae6955d88682ba4bd55e541211492091908b75. 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/ES41A0800168.
Noche De Relampagos (Nit De Llampecs) "Nueva Version"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb833ee056aec5e81d30c5b905c45a7ee19164ff1dc0fb6ed10740ada3b58c0. 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/ES41A0800169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x029a9333a010114223e9dbddcfe60fcb0764152579894861d878138c6ab81bb7. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/ES5106500015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x249017b5fa29f1aa7babf52c1f1f59ebae9e69beb4a1075bda8053d2fd5b496c. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ES5106700026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac8fea0f51d451f3fff993f23243c1f95e0d395e8d99fd606386e1b243d8294b. 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/ES5106500017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75d69a78de1ff3ee998ab98eec6500e7bb6b9e9be3a68775940bca93a177fbc7. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ES5106500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeaca9e7e7605533cfab2da9e3fc14736f9d5988005a3301b8a83da6858abe1c. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ES5021900143.
Fútbol en Acción (Banda Sonora Original de la Serie de Rtve)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c1d2210464a723402af523713dfb8abf27dd5a799eadd2a7b6459285b49260d. 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/ES5100100342.