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 0xd438abc354f84d2a7539093f31fd68ff87590cb5cf31ffc859b1c332147b3186. Chain 2 (Bitcoin): anchored in block 953768 (2026-06-15T09:30:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c2b92117-683a-4697-b527-fecde9d9cbed.json and https://artists.proofprofile.net/proofs/artist/c2b92117-683a-4697-b527-fecde9d9cbed.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 0xe3eec49b3ac1b4fb33e493c3894e912d3f83959057d4074ad0e97bd658b50ea5. 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/GX3Q92518386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb58321d8086fda0648dcf0de4bb5819d979ffbde426c62515fa4d0f0d678b407. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/GX3Q92538784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x282060736e41edb014e54ff319ea6943570e4e38645e973a216a4ba5fce5e1f7. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/GX3Q92557503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedd6bd2e6f76fd51d4aea8baf6dbc7320422cc6dc69ef77f0f41e4dd04020ea5. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/GX3Q92560217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d939f384d0d19145156ec9a32f900ecf0db823715d5cbc9876226eca8c9c301. 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/GX3Q92568673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x978fe787eead5e6009bb0aba451f063dff12bced7ba78ac67bdcc8ac00b07876. Chain 2 (Bitcoin): anchored in block 958579 (2026-07-18T16:26:17Z), 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/GX3Q92577157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc23e0460e9713b4b7c5ee833a4fba56ab236c99897e50c88e3a5cbd7c15121e3. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/GX3Q92577114.
E Se Ele Voltar? (A Moral Tem Critério Estético)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c190a1e9fa741a3a425e7e272f4559b170f6b11fbc2e03a31022b525cce2473. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/GX3Q92588367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2a9ce68ba2426e420fbf2a199f68df4953d47f2bca1380472c4568dec42f8fd. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/GX3Q92588365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96a30132aa2266924f92f7f6b636d331acd037141666afdb450b15de47440322. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/GBLFP2504768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41cd7cc363f76d97f04f98c4c2e836a26d131d6cab829f7f4614a60f5262216a. 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/GBLFP2535554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f1f7794f6ee76d5f58e5cd196ac5818247c0690f7f36e3b2eba0829a2184dc8. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/GBLFP2557142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32730e4f2f8e1e331623881b95a28aaddfa8b77646a632497e83c02319225b7b. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/BC6M22513705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd81e5169523ab4f45a123ba2899a866735763d01e1cfa1c1ac38eafaa0db0e. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/BC6M22513704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a21dfc0cf1e566a517e28e44b022776bafb06e71aa3270a06affa9c90f4eac1. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/BC6M22513702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b9794387308ce65022af267d1cc22b7927126489bc7ec7fb2c782bd1d1ca10b. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/BC6M22561038.
Eu Sei O Que Você Fez No Verão Passado (Guia Oficial)
Filho O Essencial É Invisível Aos Olhos (Voz Deise Emanuelle)
Eu Sei O Que Você Fez No Verão Passado (Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9de2fbd02143d88fb9812fab655948d0dedac46a218582d3824c3ac11080711e. 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/BC6M22557621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99f5a678ccb1cbc5de3fd99ce514f72ea3aa3227ddfc6f0560a4ab0e0b54a11d. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/GXJ8K2511508.