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 0xed6c7500bb71bb56ec469e4ddc0ff403f7bc22e9a34b7f405f9ae5e4c0049216. 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/9429f3e4-0591-48d2-b93e-b513ad17febe.json and https://artists.proofprofile.net/proofs/artist/9429f3e4-0591-48d2-b93e-b513ad17febe.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 0xe37de05fbab2d1217f03bb310a8c27e6961352592a0a10f6be318e01237deb94. 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/ES71G2309532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a7e9990151bfc331b54773a93ba6eeb74ff47505bb2cf40d94002f3e4fc40a2. 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/ES71G2116927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ae4ba5fbc11f452c1a188108480583473817b0bbab465bb835364decebf0066. 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/ES71G2148967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf537eb91b73ed75d6e11e601e0814a04a2da305fa4c63742bec671a719b300d4. 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/TCAHD2338721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1e2b4877fa7828783ebd58fac18c90c5e1965153741a82abece5055c300aa16. 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/QZHZ42287348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe8d9f8d82bd1b2b9b7d4af1273eff1ab03fe5a770efc99580f408d5533fbe85. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZNWQ2014583.
Sigues Con el [feat. Carlos Prado] (Versión Salsa)
Sigues Con el [feat. Carlos Prado] - Versión Salsa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fb4ad91b7df43312adbb498dd12ae0c4d41c5d19190b586d4782808c6802952. 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/QZHN72026210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f084c5a3dde949a113776dad60d11b3960a66497eeebda0d177e3ff7cee646d. 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/QZGLS2005698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb04d3f3ec13196d7f2531ca1156ab5b8e196043ff7abaf25d917ca3ca408a73c. 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/QZGLS2005699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f34a1f990b95e475610b2c8a64dee0e76a5de395b6118eccd6fdf95d90ad60c. 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/QZDA51908057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x636eb18146ff98a26d4192e458bfad2db88711691744b34b4df189bf5a7b2d54. 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/QZES81830530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a45adbcaab0572a7ec921d8fdd5d4b678f8d71c027188ffa24e390721f14dfa. 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/QZES81816177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7caabcb4c823037f7dbb1560bdb2fd1725ac68b7559164619051559cb2a2f14a. 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/QZES71851185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13887df88906868cd8e4065460ae89b7f9dab2dc68538d014ff7641ac4e0a16a. 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/QZGLS2076583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b62213fb35f826b8c60ca92de0030dfadd8cc44fd0a1a54e79add1ab34b364b. 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/USCGJ1720111.
La Luna y Tu / No Te Vayas / Una Cerveza (feat. Stephanie Umbert & Rodrigo Tapari)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x841fb9441618c570266cc40e4215ecd96b74880af2dfdfe17959e55b1e2a13a4. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/USDY41610336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ad58bc48d69fe693cb072de29ff5824181cbcf78f10dcbb01e108ff431dae8a. 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/USHM21528366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x330d77af027b2928dbb93cd4d15f2e0ef702c2464c9d8316e8454b6735e0246b. 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/USCGJ2095053.