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 0xc4f46e64d86cdf70fa47488b65fe5ae998ce5a1cd325436bd2b23d6f829ee34e. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ce2f98e3-cf5b-4eae-b6e0-669dec79c576.json and https://artists.proofprofile.net/proofs/artist/ce2f98e3-cf5b-4eae-b6e0-669dec79c576.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 0x704d209fec14d37eed23732921f7f55929feed16a559118d47db84da499518ce. Chain 2 (Bitcoin): anchored in block 958351 (2026-07-17T02:38:05Z), 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/BRM2P1400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d919d16460e19157a2946185b8fa00c17cec41a6be0c53929ef70582bc46e49. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BRM2P1400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4c2960bb71d018cc473ae719d5a2641dd4032c7e9cfe6453e9f9c223df67508. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BRM2P1400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88092c2454bd1b72d53a2ced11e3ff10be3e837a1cc4b4f2dbfc503318aa9f8f. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BRM2P1400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc53eca70d3e2259bd2002e354e624e96251d5e441bbf0add9b05f0919d3ab078. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:06:38Z), 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/BRM2P1500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0db4c174e232505ac1bc0d4644a62ca7a2b32956d9a1137ee337e00f5c2a1a6. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZ5AB1609551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc219d6d7212f3eb8ad5480a3e51430941d0e2080627abfc1a4845e15f011e208. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/QZ5AB1609552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabc8f3894d5dd7c8140e0f8d305922125f4276cb2863cda35cc26cca7669a8c8. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:50:23Z), 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/BRM2P1600011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b2501723eca4cf3e1377d165b8ddc21e3fc357c50cbf06f2e30ab3b36f3e98b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BRKPP1800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe475f08ed90dc6d43fca60b2bccab0c6e58292cc817296e37ccc48dbbf7947f3. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/BRKPP1800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84912db42f2df9388a316481915bfe3c791fde9f64567a093a5854cbeb429f3a. 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/BRKPP1800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x679d1db7123b49903aadfa8c51cdf1b201ed5ee9cff1870846a21520cb00cc46. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:34:53Z), 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/BRKPP1800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda7888f55b6e736254631bdf89a8c6ddb27d74a25c35b4c8044239a473f30fa1. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/BRKPP1800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d82fd2e29ba6705c20d500c84c6d1a5f822c6f3b2be5acdf4710c785a9e3c2c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BRKPP1800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc18f5d50568a4b5751e605fc06051bf0185b2002afcb337914b9e8259aace2dc. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/BRRGE1900743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb066d5c85fdbb17aafa4beb284c5f31f9cef4ed79bb595317ca46d42a8d52938. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:05:00Z), 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/BRRGE1909409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59d06a0c8dba8c2c5b318512d6ff451941c4920105ef42f152fdba3b0a3793d3. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/BRRGE2010575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc649dcb9e61d7af70a6d6ac59186489376df801bba53596d1136e1385630ca7c. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/BRRGE2101782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c670ca6a06a16f581e7c75126c5c2f53beb4cc1765a6101e123fd1a41c621a1. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BRRGE2200833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67fa4bcf1f791535a8826ab1041493882d3d4f49f13f335d12901937dafc8d1b. 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/BRRGE2200835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe525c4fcf028181694cf1e686b30a44f0b614fd436d025901aa2b2c5e4f0e612. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BRRGE2200837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x156c02c834cca61817ea5cb82190e307227b6b212773c818f5da2e169eecfaa5. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/BKZ2E2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0358fe0361eeb9540e312076a8cf567f123a6a2107f24d69fd77ed2811c73da. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/BKZ2E2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7958d54fb6cea3deb4a94917814c215ead520dfa96ee2660a9412803065f350e. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:55:34Z), 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/BKZ2E2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94ff86430322af7b2bbb121e1e424ec71225c263f4f75ce6383e493beeac72db. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:19:14Z), 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/BKZ2E2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x059ffc7118e4970ba725e7430324836625522a15c262e55934f229bd21b83854. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/BKZ2E2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x335053e1d8d16449b8a9d72114d68c49bb484aa4ba639416273440b9e9630081. 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/BRXRM2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19f16f764a497083aec3f03ba9a8f3a0e073cff5325d78b0675fbf096d58f8fc. 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/BRRGE2009622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf576ca2eb0a09e99b429702dafea9abfed13bdc2017d359d45743ad284c1fe66. 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/BRM2P1300018.
Acústico Na Casa Do Lago (Acústico / Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4df79003834affaa964893cf0b4fdeba3d1f637b2fa88036e0eee004b5efe69. 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/BRUM71801217.
O Som do Povo Ninguém Silencia (Tema de Final de Ano Transcontinental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x122deede5b6e85f711d2d587ba5c1b6d45dff7e67436ec5ae840a58b8740f0c2. 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/US7VG1869255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x335053e1d8d16449b8a9d72114d68c49bb484aa4ba639416273440b9e9630081. 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/BRXRM2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf2f530f6a597c149e3ac0516921e1e3d48623ce654eaefc23f125a6e5fa1052. 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/BRECI1700052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe430251f88bc481a84f5a25928443b5ec8717b34d80d95a8f2424c2f2ad49791. 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/BX4X41900002.