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 0x155bcf86e7f284d9c72bcb829b37cbeb23e4a82592a649eab6e122650b102843. 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/f6ddb55e-35f6-4d74-b4fe-38af48effdab.json and https://artists.proofprofile.net/proofs/artist/f6ddb55e-35f6-4d74-b4fe-38af48effdab.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 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 0x0a3d7ae5dd136c1e03430ff8810777e1ebae1ebcca1d7f664861e1433e2f9c29. 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/BRMCA0000256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x148ccb250fb7f184468e9c12727b55c47208cabd0b0629da2a772f1968502344. 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/BRMCA0000266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0976a4da7268a4379533c69cb1087402285deb631a6b3d16176d62646f115a5f. 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/BRWG31700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadc709093042283765e3cf0d34e8a8bc8bb081f7198e1aae91f16182a1bfc4b7. 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/BRWG31700004.
É Servo do Senhor (feat. Filipe Pereira) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ce8697b54d20f3b654e78a2f97dd1c0f1c14dac7a513207d309e13b34ef83fe. 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/BRWG31700021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd93589a8a149aa5de37bb4091d03f5055361f4596c57a31f9678ac00019f897. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/BRWG31700023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a36f974842f262b0619fb3de522e7a9e589696059dc0112350bc6398be89d8. 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/BRWG31700027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x732f98f9bd4a953286cfce6b6e6001e197c040b1733ca5233af7e9fbf1d84982. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/BRWG31700029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69ff2d3b82605ae1326430dd6d629294f78ff74ba72baadb11895da60eb2998c. 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/BRWG31700030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0976a4da7268a4379533c69cb1087402285deb631a6b3d16176d62646f115a5f. 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/BRWG31700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cf37a93bc2f56c32e147734f57d3a4da00560dabfe92f97f5a365e25ac0a8d5. 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/BRWG31700162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd92c47a72507e1b3100dad1a90a39955a331548dfd83333e7b711da3504998b0. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/BRWG31900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57d0d83684d9010b9f6a7723bfaea812094cbad8d8b8c8e4dd0a812a0ee17754. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/BRHR62000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25d09adb60aaed087aa9b61c09fa9df41e0a5d7c01b3568261f819507bf46664. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/BRHR62000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9748e08927887567fac73d8e3b52d5357d204d726dd64d385f2a319379d5d6e. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/BRHR62000021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42a966eccd723ffbf72f290906ecddaa68c4e415c4804001a7988d316d7ad27f. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/BRCGL2100030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa31243e138a5ba539093d2cf37dd3f1237af37b00383260c6d46b1d9633e40a9. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/BRCGL2100094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6b7ce5fb1c06eb4920815181f692ff8124acce677c51d8d886743144b217991. Chain 2 (Bitcoin): anchored in block 958495 (2026-07-18T04:39:02Z), 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/QZNJZ2439654.
Eu Sou de Jesus / Passando pela Prova (Tributo ao Irmão Lázaro) [Ao Vivo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eedb0ed93ac8432f89360679f17edbdc63fbc76c9ea4db02c08462dc9a7f79f. 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/BR9NO1300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76732ee383f79b05b2f5b1773660850eed314bab9a0fea1a98b1f6668e48884d. 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/BRESM0100319.
Revela Samba Beach (Primeira Onda) [Ao Vivo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4656c7b50f91c33f92a62cbb1601a7d7cd59146398934b2940cb631bfa888b3. 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/BXWVW2000081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd860ee679277ab13175f438c28176593494ed4e8ab24c9a00ea6bba1a31965ac. 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/BXWVW2000082.