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 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 0x6ca55c4428d06cee2916880f40697646ae689a323408465b1a1d49f7c490564c. 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/f0ec48d5-c1bd-41a5-b05c-238299b09e0c.json and https://artists.proofprofile.net/proofs/artist/f0ec48d5-c1bd-41a5-b05c-238299b09e0c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Forrozão Ferro Na Boneca, Vol. 1 (Ao Vivo)
Forrozão Ferro na Boneca, Vol. 1 (Ao Vivo)
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 0x86929f355855d13475561375dcd983ca17b5683f4c87b5999de3d84112a11314. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/BRSZO0201001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20a97f06ce7adbc250edf9cbb268a1a1a629cb6551c6acc0fda90ce6e3c00f17. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/BRSZO0201002.
Forrozão Ferro na Boneca, Vol. 2 (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa12f248bf2adb429dd860ff035c79bf8e605843492475a0d4bc4122efee8d861. Chain 2 (Bitcoin): anchored in block 957709 (2026-07-12T13:52:43Z), 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/BRSZO0200915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe876c446d40174d077d65084275d12e990ce90ea382eb19649b9a762a982d3c5. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/BRSZO0200916.
Meu Olho no Olho Dela (No Duro) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c8835f2f7ffc94f9e029eb4b5c501d2d6702478fa1005c74ef3ea418ed1a25e. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/BRSZO0200919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4ef7e05c4f4e999e4e441d424631b9d3cb83164925d20fc5d139c4263ed7df3. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/BRSZO0200921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96be27320332750cd9e9a2b9baf2789adb7116e0133bda09fdad1d4af8401a45. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/BRSZO0200922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09238ac4e68cf58f98b921eb9bf7e46b21c5aed5212d323d2f49c0a17315ea9c. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/BRSZO0200923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9388077f485b36bd63945b47c52bc4f40f8d9b64616ad14a7a30cc2663cfc93. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/BRSZO0200927.
Forrozão Ferro Na Boneca, Vol. 2 (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8be03cd69316d686a3769dbc1770119505d90be5bbe642274ec22807ba7e018. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/BRPAR2400937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe829dafaadd27e139d3f8f4c7952708af36d194b0cc268974d26e64a9aff816d. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/BRGRV0500950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcf7343d568f612d57ba5d8fc32a85f1e3c04d044e0dcc6da8afcd5a8347bd49. Chain 2 (Bitcoin): anchored in block 957709 (2026-07-12T13:52:43Z), 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/BRGRV0500951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51848fae7dace900e5a8b2482d083f5efa0036229cab3137141dcc129c584963. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/BRGRV0500953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcc22dfd441c2514b43e342c30a69be767d7ac273eec55fb7ec2f5be0992a952. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/BRGRV0500954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x738e07575407f2ea962bc296f62538fa93dc64bfdb7945d785a9a1d1cf703bbb. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/BRGRV0500955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40a18878aa20a7a8b21ba87dd7be029a4f98b1ac85e5f6dd646ff85e37566bbe. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/BRGRV0500957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee4e64a26054d5c6ab1048fb4031f1f3976744ee31f30c1d34c3a749999d95ab. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/BRD170400113.