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 0x1730aa5d5df411c7409d1c4ebc5b73d045cebaa9884ad58ddd4329fd5b380abb. 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/94987de3-7716-42b5-b07c-5f1d04a2a681.json and https://artists.proofprofile.net/proofs/artist/94987de3-7716-42b5-b07c-5f1d04a2a681.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 0x45e62dc3533617c77425dbc574a0048333c035dd8a74431b447d4af5e996d234. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:53:26Z), 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/USCGJ1935502.
Vai Malandra (Ao Vivo No Rio De Janeiro / 2019)
O Tempo Não Para (Ao Vivo No Rio De Janeiro / 2019)
Ela Vai Voltar (Ao Vivo No Rio De Janeiro / 2019)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c93626ed2073606eaee9e5fb49c7291437d9e6d7b0bae05b885f6d94e654c9c. 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/BR3752100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bee33b3bbf29b15295fcf67b3b0ef0b3fbb85932210e6a28f68ba50974e2173. 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/BKPP82200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbedd8c90d6818ac2319fe159a495e36b0c1aedc2f6974a2acf49db197ee7e97a. 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/BKPP82300056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e12bee6302525c74c2632d0cbf7f9c433cd7a6c7e21afa21dc8dbcc75ce03bd. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BKPP82300058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9ed886719b3148f9eab1986f17fe47d7fe960543938010f4a75fecacdebe718. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BKPP82300060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79139acab4ef466ded2708fa13efaa2f7cb67d16e77acf62fa2ba2b40c2ed15b. 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/BKPP82300064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80a14c30659ca693833ff7a7b46e43514241e239f9612d39e6a30967dfc827df. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BKPP82300066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc08bb5586b8c3e317314dc5ab66a403f0f1883215913e2a2c12d1b8fc1c8bc8. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BKPP82300072.
minha cabeça é meu pior inimigo - ao vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9e0688b14bb9f68af3e1a529c3b4c530dfe100efe6e3ee9d4d407c7d7e235c8. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BKPP82300078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63ede9be5e9339a1fd2d65005f4d78f514f9a945bb39630d65937fcc3872a584. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/BKPP82300062.
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 0x47bec4839c116ef2e1a9565a615de6b07cf9d5286aefb79f9dcb4445939b75e3. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/BKPP82300068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b54bf47a689aa8e919cdc65366d1cf1964356e055e51f34ced68c090c04966f. Chain 2 (Bitcoin): anchored in block 960407 (2026-07-31T13:26:30Z), 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/BKPP82300070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68b9fb5d67ae2e39fa0c14be2c9432404d2d64afec2010c6141a63d3d386ac24. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/BKPP82300074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f31f83b638c873032834b9a1000075e911006108e443482a6d2ab3890795781. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/BKPP82300076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e4aa707bc02d226a19b036960850c2f4bd88fef55ebf53bc92df46d667a85c5. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/BCDFI2400021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x623a5c28d2ca7c21362d46022a8db4c956e0657e09cd3c20b8e0905683e7dd7b. 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/BCDFI2400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52399b055159551ee6b1418319a6c7c802b322efad3a09c9730eb98f096e1958. 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/BCDFI2400045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf99d7a5d61a24095e6f65583f0515674293776bc3e8cd9555b8f48d57e0e216f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BCDFI2200023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88d8c4ecab49d780affe6f15dabdeae87fb2b97dd4726623e35f53e6a1c42dbc. 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/BCKON2100023.