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 0x0d93395c7905463d541744715988dff4351eb8e5321857c9630065ded913882e. 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/324ee880-93eb-4a25-911e-9b9ad5b330e4.json and https://artists.proofprofile.net/proofs/artist/324ee880-93eb-4a25-911e-9b9ad5b330e4.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 0xa286fcb005ada683796805a097ce1b20db797f6c1858e45aee10c30cbf8e874d. 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/ES5022301214.
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.
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.
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.
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 0x7879daa90ce68307b203c24b5864dea49fe20595c8c48d3ff22463d32cb403ca. 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/ZZOPM2225292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc340dc5976544418678e0ad9ac98363710195aa505650c940f66f9c67bfb9a3c. 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/BK4DA2412287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b411d48c69a77f6e92708edc139073319f504f9c28541e947db6b23363eb7b3. 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/BK4DA2411294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7212f3b7238c132accecc1a86efbb646c834a87613c50cd0d8947cf24070fd9. 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/BK4DA2413731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40f77ae3495c38e30fc47d4fe59e5c1aef2391f1d69ef0b6cb672e44d19ff7ab. 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/BK4DA2414725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23b53e9b8dd521b7b44ef8ac598d9e621aa4229739a66ac2cb484082922f0902. 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/BK4DA2414728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfceea19bb2c6d43c07d1ad76d30453d57691d11ee28d28b07d54fd765d9e0422. 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/BK4DA2414730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc340dc5976544418678e0ad9ac98363710195aa505650c940f66f9c67bfb9a3c. 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/BK4DA2412287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7212f3b7238c132accecc1a86efbb646c834a87613c50cd0d8947cf24070fd9. 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/BK4DA2413731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b411d48c69a77f6e92708edc139073319f504f9c28541e947db6b23363eb7b3. 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/BK4DA2411294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbffb12252a7837614088964654c9cd4b7c685dddfbfcf7764a0a1ac007dd712d. 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/BK4DA2414735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4436c23a5798dffd9bf287652745ceb656f2776d0ec20f074f8f3823ef356f68. 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/ES64E2505517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ea8873cab03d460c1eafdb07506c2c7d58f544f35f23696d6ac9dcb6aaa1da2. 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/ESA092438582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b1524c888f7661966f905e8797be08ec19dd35d0743bf4d513de66c9ea06fbc. 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/QM22L2102766.