1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xe58fb3ce0e5bb47503cfda4d6ce97eda997b2643f27555d65d9df88f03424637. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/55702a0c-839b-4ba5-8e81-90c5dddf58d5.json and https://artists.proofprofile.net/proofs/artist/55702a0c-839b-4ba5-8e81-90c5dddf58d5.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 → block OTSBitcoinBlock must exist at that height 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 0xad74998e978ce8dc44cb2a3dc01805f114c57384e65277046c9fcccca6320a0e. 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/ES5022301072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x771fc316d62e71010b8d42de512a1dceebcf8f858920f76a841870442c53ee88. 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/ES5022301041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeffe9389e32a9e4bdd408ecf6523c60b7690eac24d0cace86b791bcf21b76184. 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/ES5022301231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2f7c893521c593eb99209e9d69a3effc2867cd55b3aa75740abf09c66fd73e3. 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/ES5022301267.
PABLO DACOSTA #11 AFTER HOUR THE MIXTAPE
SOFI DE LA TORRE #12 AFTER HOUR THE MIXTAPE
MAIKEL DELACALLE #16 AFTER HOUR THE MIXTAPE
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82206b139cacb2ac981ae5407d798fe4d8e60d9bf7c1c4f07d2fa0305d9f6416. 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/ES5022301273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccbaea3f19c364e556460c92d7161ac705af50fd60132dba749551ced0e17b3b. 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/ES5022301290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf073d6b14f9fa877985920c2c8c8c9adae940ec36759c62549b8c35f20926aaf. 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/ES5022301291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3886bf14d7a9403d6c1f206cff394ef013464dedab8d560cff9afa9312c8f5f3. 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/ES5022301292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x742c59fb91f4448cdd367e26b5c52e5e61d0ce00077341dcb7397a8723bfb066. 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/ES5022301307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e514b17a603396993258e38b71635b011cceb6f5d88c9615f7632325631db26. 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/ES5022301308.
WOS LAS PALMAS #29 AFTER HOUR THE MIXTAPE
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97185150b67ffd5b214b27f6a1ec117cd10a8c236d4422e1caa70e7e3cd1cf78. 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/ES5022301309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe12cca1d92a38c7657c352022c2559c58be913caf64bb3a8fdc6626cc85a291. 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/ES5022301311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x192c9fe6eb28bd07f5e219fd55956074c001dafc219897620a9be927c1335f60. 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/ES5022301312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x438e76ca5ac3bf04cf5325e571700f918dfdef6d30495ef856f79836f55b4d18. 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/ES5022301313.
A'JAH PROFECIA CREW #33 AFTER HOUR THE MIXTAPE
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa286fcb005ada683796805a097ce1b20db797f6c1858e45aee10c30cbf8e874d. 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/ES5022301214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc28cd5f6b014568f39f6d531394c4416535f077211f9e618324a55213415ec25. 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/ES5022301315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca50111d470ea9826fb084678b28e24dc8ef15fdf824c78cd51b63565d4f0767. 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/ES5022301319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88821771f650d0d69bd875b66ffa5d0482281df996bd212bcf2684bb5fd8a150. 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/ES5022301341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeadd43dfdbe3e337ac7fbed5e601a6ae97046ee73464fbf372a318c74ce6585c. 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/ES5022301352.
DANIELA GARSAL #40 AFTER HOUR THE MIXTAPE
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x638e8aec951b3207695042ae09de808c88bfae089a89756885cf1771c2d4aead. 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/ES5022301370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd12348f10b1001497305a95440b47b1dee93c669f755f18072df44a050fefae0. 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/ES5022301375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc13909b4f4d65373a17b6ddcc1a869256ab5a2a419029fb14f4d5ae7ce2a6bea. 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/ES5022301377.
EL EXTRANJERO #44 AFTER HOUR THE MIXTAPE
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x847108799e47f7d151232c5d253b4210459a3b21f126b12373679dd5b116bb1f. 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/ES5022301317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd546d1d204ebce5c0064c2e6c36f38ba6e95af5013d8d73178f0b6cdee859b3c. 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/ES5022301289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a675854b6b4aae1707e5dc985858cbec653d13ce1157bbc2ff4501ec311da72. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QM4TX2213125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8af02c59274a963c3b2cdc424da7e769dac438915c2b5a2ddf07a82b0f6cacdf. 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/USCGH1949173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x136d320b96e4141d8c40cf02cb6098698d45532f853a785b0c8f6048a45589a6. 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/USCGH1949174.
Sin Perdón (feat. Jaro Desperdizio & Sin H)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x805901f48193478c881c475a0dc7d578ce469d27e9409f63e60e7be00ca48f58. 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/USCGH1949175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7a47175ec7269b900a664cfdef1de059ca52cf9602446141fab9551c5c17f7a. 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/USCGH1949176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04d1da74b2a21b0afc0dd6939a836573e1f3506eb99ce143cfb5c7378eced345. 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/USCGH1949177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5b5de463b8096709b5763110e178a39b29b01a9e34847970c555397beb9c20c. 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/USL4Q1882134.
Fly Away (feat. Alex Orellana & Dayan Soul)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8235efd6a156a257c4dd6c517092403854e9bb44ff6ad462d419ed12aa83009. 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/USCGH1949178.
Un Día en la Vida de un Tonto (feat. Dae Lacruzz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8eb35402be2a59972fb6c27c2d4ca5c955af0376f7872b86f15c26826417461. 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/USCGH1949179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc65e66f87c0d7d60e5491a3304af21e5069e11aae4b34ca764e3e524318aade6. 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/USCGH1949180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadaf15c3e119eaf2018866d3093c297e0b4e7d1ff242c7f645de6e294f96c367. 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/USCGH1949181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7458299836daa9895fe9aab6c91846efa1316778d53dfffa0d234d982b4261c5. 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/FR10S2288847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc2963c545a8374a6697396891be1bc228f7eb6b9cb58234cc26ab01d4efc033. 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/QM22L2002958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa48c4b021177a37f23123eb143ee2a2d5ae78a1c258d9ed70224f8d645df37ff. 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/QM22L2002960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd8e904713b602b9a2272f75f9896a3283b5412dced684abbeb60ef09f41ceae. 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/QM22L2002962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0091d68f68d83f4242eb8777666b0fd9333dc891d872661f2f8f3357fb847573. 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/CH6542015386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78119695ddc2bb80153d25e41ec0e15532e17668b984cf87989159543eb43092. 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/QZK6M2004360.