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 0xace2b1b69eb71b850bcf072b841f2b558a6dfd97306a91af398a351b7e065572. 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/0c0980fb-baa5-4985-b0f8-f9fdd5b53fe4.json and https://artists.proofprofile.net/proofs/artist/0c0980fb-baa5-4985-b0f8-f9fdd5b53fe4.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 0xa73da822ed82710babb4b4c188467fa2e6b041df1638e9e328ef3186679ce942. 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/BC71O2400105.
SÓ QUERO AS MACONHEIRAS / FALA AÍ ONDE É A TRETA
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa53e74eaae3b9a948fa41c72e9414a10040e4a0a39cc49834fa6a6b999c3c32d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BXIV82451157.
Eu Te Peguei Fiz Tua Perna Tremer, Esse Cara Sou Eu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd38ebe45c54496e045436b1f4be8114bfbdf48bff5c5746388b7d3f9fd408a4. 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/SGB502485597.
Automotivo Ritmado 2.0 (feat. 3 TENORES)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d3b2aa846546da3722399487997c8f2321d282aa7e736afe97168967bd6423a. 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/ESA112433761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77c58da5027d0b6e8e84eb4ec0bc8f759ae1c15629570f7badefd29740a48590. 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/BCOOP2400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0d660dd7d1219cf222f1e65eb20e17757751883694058d1991b9b5664070f8b. 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/BCFCV2400142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20c65303235daba39f4f65b562fba61d7c16c9a0cd085869349d41f37835cb36. 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/BCFCV2300588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1544f2c262ddae372364a7f9ad91136461974209b8aedcb2853c90ccc8ad9a8b. 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/BCFCV2300363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a055b2dc196d058b9ddc55ab462b3acdf5acd6a5fe64ac078428f9a72e2bb47. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/BCLWS2501343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b1598ef3055b43629e111da8d85e58694466dd0971227c145868e9dc9fc8af3. 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/BCFCV2500455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8158c48051453a92fb75e0d47b507adf12741b3b3779c5c763a83dccdf883a57. 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/BXG6R2500151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd986562742810da071923ec3ec730ef066ac4f07b0255396fadc2d858785705a. 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/BC6M22509142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee372bae78b8c435a19ade7dfe30c98e4686dd32d0772c614194ba51ef62f803. 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/BCLWS2404824.
Lembra Aquele Cara Que Te Deu Tapa na Cara
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcd3ea22e29fc897e42417b66acd33b02a408b798b7386b610ed5d165f8df811. 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/BKJ7K2400672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6037ef3d7e8252a2835d2f1801737a4eea1a3ffae4c9b5b9c6d916d1c84e56c. 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/BKXXO2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17a29750237df4db33d038a5eb27266ee6bcd1ed0ba7b92316c049c3d86ee0cb. 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/BCFCV2401117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab64912fb14909489aa7c8e31b00a53d94f81c0a06abfbcb1a0145dd31a99f80. 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/BCFCV2400888.