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 0x1f94e1cab6ae5f44eb30a6b000cb6c84ec5b4906d103a6eb062ee1e9bb5faa32. 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/4d646148-ea93-409c-985f-e6f418baa85d.json and https://artists.proofprofile.net/proofs/artist/4d646148-ea93-409c-985f-e6f418baa85d.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 0x7ea99e23b19ed9954ac502dd7ec05d75d00c52ad2475fddeea95b3b674f904a2. 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/BR90B1601488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a446d23807c7574d2500c0a7340ecffa9d3f345ccdf3f24770865be98627ce. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/BCSUV2100576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64d651a8d89771975555b8e563ab62568bec032540aabec202d492b220ca5e38. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/BCSUV2200158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46828a22871282fc58e89d823d109ba8dba25a364c08a425efc5d8ead7f50a76. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/BCSUV2200803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc38ce34594d9afc6efdc1acbde5d0e4badc880a306546b46b59c918706b78eb. 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/ILTON2300147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7b28f428914d255f762561b78fc4612b2101bb4de65ac7c113ee8cc7966f9c0. 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/BCSUV2303824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54c4b556ae4095187c65df74db9644672a6e6f19427f7c948c19f09deb725049. 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/BCSUV2304679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x827c9b016306696b4f32015fac9b554e2d1a81c55a8d27b2308978a38c1ab269. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/BCSUV2304706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe81a7e50fe11887943e9bd1f9d6431e5db6678390d96cd959b6dc37274e1f0e4. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/BCSUV2304707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe14d8b2dac706d053cab45ce03f9259057a1e440d1b7031d52eebc05afc16e97. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/BCSUV2304711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5f4bf12123973db35538a39bdc42b4f7a8c3bff45300bab6bd5123d5565d37a. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/BCSUV2401154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5f4bf12123973db35538a39bdc42b4f7a8c3bff45300bab6bd5123d5565d37a. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/BCSUV2401154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd756a1b27a5792e046470f3e8cf9d2ac1b024cbb3b1166fd3802256d40d184d. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/ILTON2404811.
Medley: Você Não Sabe o que é Amor / Digitais
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc72e218ef94d549a01ea8e0cfec68fcc901a2f4308d578b6c2c3825eae26505d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ILTON2404815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x498a5d8b5e36d0a1eef5c720c7e9901cb1c5dceed2d98e700d1f1baac285daa0. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QZW9M2459665.
Sacode Inesquecível - Ao Vivo em Fortaleza
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2026945000ed9a577d19808eea02eeeb9f906950ec20f8d8fc4d51c76fde827. 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/ILTON2402510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ef70e5c274c089e58a89fc17a95f576f08e21b0cab3d55e45d429e2891c4433. 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/BRG682100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x870efb2ba0f9bacf5ca78d3a42495c920bb807307cabb6747d531fbd691cb3a9. 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/BRG682100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45e8a4f14a4cee7ffad2f51df5397dbb2f55396f465e72a1b50c8664f67bb300. 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/BRG682100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03866132ed92dc01382b331dd58023431216a9568f66fe1dbfd4ec0172d0a9c4. 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/BRG682100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2026945000ed9a577d19808eea02eeeb9f906950ec20f8d8fc4d51c76fde827. 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/ILTON2402510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1130de95db87768ea3630529d19fa5c3a1e3dcbaa2ebbcab3f76e50ce86aeeb9. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:37:41Z), 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/BRG682100009.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x813b3d6f57f401729e1f1a1b3da15b287d0e8740f979e96f52922a5e09e3fde1. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/BRG682100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cd5d461b0fc4fe5efab0a7fc48520ef6fe988bd4b982256cc448946bcf0bbaa. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/BRG682100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e68198ee67f3f93d1afe9143e9ef71370bd8600d048a4502bd56a2ac5bf1771. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/BRG682100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe29e6bc1028b430f41948aae8e0f49f0aa5f2937fa527db712ac85125e6367ae. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/BRG682100004.