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 0xd1e219ff9492a62c7abbf869c3ce7969b65848c802b43495b6024c42a5cfa0a5. 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/dd94574b-7cd9-4a7e-acaf-e58b20d652ea.json and https://artists.proofprofile.net/proofs/artist/dd94574b-7cd9-4a7e-acaf-e58b20d652ea.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 0xb36b0544ad990b5c926d0493efa96ab2462f40e0595da5068460f334f17b293f. 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/AEA3A2123793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x489c1500b53a74bcaf60ca5e9fda48c452b9147f05ed21f4e3aeab023c455be4. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/QZWDW2562780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86adc6f78deb108e5fc33df537e74faca83bcbf54b1c1da04f09c0dae517af9a. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/BKIUG2500082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2a956fe199cff6ef3d9064f6efa85bb29d76026a35ae082748c2a932da294ce. 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/GXBAV2130810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3a8785d0e1fe8c45e02274f9294b7ec680a48616f7e515be72ff606d282914b. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZNJX2579019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c8efb5d56082b9bc2d4b10f1814e0b251003737468dfee72fa810e6b6cc91d8. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZNJY2505040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfde77f8a74a5cf690e764bf71c073ae8270af33ad7ca4a07b3a68c4dbdfb3c9a. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QZNJY2531401.
Brota Que a Tropa Te Come É os Fibra do Homem
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa6c761e6ac2161e3f39c5a3ac4e79400f8a6cfa85b68ea478a966536a369614. 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/BKIUG2500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16e7069116ba06ed03cc5bcdd1b756b68d985e60def0c9f69d84826f2e9492c5. 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/QZGLS2478014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x074fa2468ef6707b66e904746fefc15614196e7fd65f09af63e7b7aab41bb4c3. 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/QZNJW2396720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86601b446cdae670391597d4615f55acfa1c3cbb61fb8e0d6a4e7ea6a8933337. 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/BKIUG2500050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe320852ae2ccb272c25cdd8f70b400188e3aac8f58a453dfd72815db5f547c77. 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/QZMZ92568671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0feb98a38822f3bdb99e9c35d904ede9589df0f3a53ceb48dc842d2ff44f3af. 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/QZNJW2505598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78078c1c235ed634febe949677841360ac9f7554a68fa651111c065a4acdd73f. 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/QZNJW2513633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a52ad73d0320fd50ee1f24e7f3ff40529676010e08dd21c0ee74aaeb22f3a16. 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/BXTRN2500810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda6da2a3a8d630a7316334e0de3d5aa13924c14fdfa39f2e7a6b6bc3431e6f8f. 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/BXTRN2500773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecb2b5c7be39d6c2b6028372df7085c91a7049dcb7d98f5bba844c7c525d8bf6. 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/BXTRN2500723.
5 Minutinhos de Crime Com Putaria pra Tropa do 244
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc965eef1dd37227df35563266885193ae67b54968d535dfe78bb5d0425abc26d. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QZGLM2593711.
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 0xe1bbde1770b112c2a0915d98bd63b3a058d5c12dd6deeec22e5cabcbe353dfe3. 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/QZGLM2579927.