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 0x7e8016bb9f6b6f2f66c7830a6d6756545979073664ae7c7cb19b965fbd7dbf96. 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/cc1d0a5c-f9f0-40b3-a7e7-385c8c63cfa5.json and https://artists.proofprofile.net/proofs/artist/cc1d0a5c-f9f0-40b3-a7e7-385c8c63cfa5.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 0xffb0741083288deb3d7553d709c965390d19d2d902b83a1f19d7933b92027a7a. 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/QZNJX2064246.
A Tu Lado Siempre Iremos (Acoustic Sessions)
Como Ofrenda de Amor (Acoustic Sessions)
Como Ofrenda de Amor - Acoustic Sessions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cbefebce9dd0211bf172a11db877d8dec321e062e3bff46d7e185064de7f310. 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/QZNJV2304835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3949c5a630426e3d6e5c4d866fb14349b1c06127adc48a6f838e1a1b0dd4e9f7. 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/QZNJV2273329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa970a1b45432f1e7bf827611af62cf7376664ac1c4ef82aeccee71ef3184e651. 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/QZNJW2121866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95b274c8df1b636988b71ecd97ddbbde86b562e8bd73f81f8fd57078d6dc3085. 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/QZHZ42176159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a35cc9f218a40b713548d8fdd029d5dc4561e9a7d3b02226e3325b54a447f33. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZGLM2131487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffb0741083288deb3d7553d709c965390d19d2d902b83a1f19d7933b92027a7a. 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/QZNJX2064246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c6bcc14b2d5054d29e05289ecc8676f01c906a64325d04e4106364cbd05709d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZNJV2066192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21cc741c5f609cef60d33d0aafc473c645de86e786200e72eef9859a4ae224e5. 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/QZHZ62007278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bdf8b4ae3496c227d553a85a0286c51ed35f36c5042159105cc23ba38fe7eb7. 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/QZ5AB2095343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x634aa8dcb12ae53e5d89e676645b227a104d0bc22e8be50099d6a398d9c95ef0. 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/QZGLM1932482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf61b6f20f4b7c6cb84199dbd07783de803ce15df9401bbd1415b6e1526f65263. 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/USDY41965591.
Rosario Cielo Abierto - Misterios Dolorosos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aae6b6172fe73ad7969218a2cc7e6ef06c36bce44b8f23a45383a2d34f14185. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:25:28Z), 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/QZGLM2156398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x512482e0eaf7888881b0f35ce270e75129a792aaad414c61b1d484e45bef3b73. 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/QZGLM2156406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dfe1af56d1095d84f854f4f39efe603868ee6eee81e4204569235598cc36f82. 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/QZNJW2158079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09d1d5eb1bedfb9ae5a1ad11601ac1df7437804aa0b43dddaf4f349991131089. 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/QZNJV2032152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26c29761890feaaac00d3520506aa9bf163a7650bba1b827b819d65359d22434. 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/QZHZ52195581.