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 0x8d150501feb8b542c0eab1921c46b2440c72ec376ea95e9fe73ec2408ecef674. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/80cbafef-0143-4584-be40-0662d0b19a29.json and https://artists.proofprofile.net/proofs/artist/80cbafef-0143-4584-be40-0662d0b19a29.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 0x1020bd6b48bd76bf2e60e349ae5b7d7c79c319d546e00a762421233167ca7f7c. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/ES7130501508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3743a8230e5faab3ecc2af90440cd516be522b1ef199b542c2307b85a55b6752. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:26:37Z), 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/ES71G1300633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa319a832fe8c6d5b4d2467bd5a6adad7d2b28d5dba33ee6fd3b26cabc7427edc. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:05:22Z), 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/ES8080600501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eaab44b038653a216b9f358097410a98b9b0612fdfd44b88050da196b132fac. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/ES8080600503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa019e2260f4b7ba82bf83e47d009c8bb2c428fdfab749503a18b3412218ef7d4. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/ES5151000268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef0bd07090b1e68aa6a7f5325cf28d8bce019894e6082daaf57b57e08752ba60. 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/ES5151000265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ce6ed2e6d1758de4b8cd817f3dd07cf16454400a2e058dc1e30f2ca81a2c17e. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-16T14:09:43Z), 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/ES5151000266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfefb0be1e7ed0683a31d48880fdda967f7a118b108541f115bbdcc1c2d9da389. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ES5151000267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa019e2260f4b7ba82bf83e47d009c8bb2c428fdfab749503a18b3412218ef7d4. 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/ES5151000268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcae5faf500754448c94508271ee9c4c45c6680dfc74363e6127b70ad9c32317b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ES5151000269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56870ade9f3b03f406f08920f78381ff7ccd37668bd2d831b0e9a2409f5c0376. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ES5151000270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f20184c406d535a39cbbbee8ec7314970f3093b0d54193332fe4abe44a41013. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/ES5151000272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x927fcc0bf98753ecfc69f73dccb476b9a72f63b03f27930538e2d02186780105. 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/ES5151000273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11093b1e722ac40a25cc116efd396fa1c0e8e26fedac7cd3425681c991d4dd90. 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/ES5151000275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a584fdd2ff1b5b22bd1709d24faae6b3db27de1aa6e43e587d09713896ae99c. 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/ES5151000276.
Cuatro elementos (Edición coleccionista)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4114cb508e2706fcba3b3845f30f9afde586712852770dc93f69ceeb4da56f14. 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/ES5151001897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15d026a889b70a11972b60c37446514e9357613c20618224a22df0d8a677cd8f. 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/ES5151102144.
Cuatro elementos (con El Sueño de Morfeo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11c2ea41b373f03093d4cb224ad0cb2e60ae7823667e07d0fb44537057cc6542. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/ES5151201204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b9fb7fb5db37d2aab22c7adfb2c2a603ae94d643cf2895489c35ab3f50d11a4. 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/ES5151201261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7424bc4b8e6286fb6a4eefd8e12053060a1e510b42b517658e78bf14b29f00df. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T13:20:09Z), 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/ES5151401403.
Cuatro elementos (feat. El Sueño de Morfeo)
Las 100 mejores canciones del Pop Español, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4114cb508e2706fcba3b3845f30f9afde586712852770dc93f69ceeb4da56f14. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/ES5151001897.
Las 100 mejores canciones de amor del Pop Español
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcae5faf500754448c94508271ee9c4c45c6680dfc74363e6127b70ad9c32317b. 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/ES5151000269.