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 0x1013f10178d4aa85e48326abb355c01c8bbf244d32840bd031649878036ff8a7. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/14d36e7d-8055-4215-90d0-319542ebe8be.json and https://artists.proofprofile.net/proofs/artist/14d36e7d-8055-4215-90d0-319542ebe8be.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 0x1a00107d1dc22239db1ca20bf13c1f5d236bcdddd774a51a7c5ae04e4a9883c1. 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/BCIH82305595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30f4aa5da81f0ba7800dcfd02c374bbc0becab196e4da04730924a663a269144. 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/BCIH82305596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f4d62e80b5234d67594564a6f1451a421afcc42cb23522ff1c76129f4fe81bf. 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/BCIH82305597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7815703fa650eb5eb1f514a93198c6ca6f5dd16a43f668b15d9dc49e8f424e91. 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/BCIH82305598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8331cccbf693fac1b8ae0b044f84b132ed7ed2fb61cc1f57464c37af36d4dc4f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BCIH82305599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad0ab0ecddfaa32fd8dfb52240763c15e108a06608185991a793361e82b19ed3. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/BCIH82305594.
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
Ultra Magrão - Quando Ela Bebi, Ela Fica Maluca
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceaeabd3135c2b38a78d7b8a38d9c20b3850ed172fc6e1608a7571311a56978e. 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/US7VG2595397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaab1b882cbb70fd543f4a3b7aaed4e579e9ccc238ef70a1f2367eb9d6ae4ada4. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QZMZ92576057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5adf34e60272cb659e8ebe580aa11fc42e9c46fe11539c2c3d99b3767fcad1c6. 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/QZMZ92575701.
Lembra das Antiga Quando Eu Te Tacava a Pica
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4d94f9b78c134cb7020572d45fa77e1795e7dc3de0cafa936b26a7a88ce2bea. 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/QZMZ92576263.
Agora Me Chama De Palhacinho - Agressivão
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd615c3f62ac0122c39853b7541762a8f05d07950c9ea3303a6b7ecda70b3c1b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZGLS2527788.
Arra Arra Arrastando O Pererecão No Chão
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eb9c526db33fbfdf04affdfa2298886b3a9023582a937b906289bf256787177. 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/US7VG2599739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc18cd2aa67aaae5e471d9b4a479a4c28fc8441bdb0b15cf46307deb7937fd092. 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/US7VG2599747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f7a83882aeb2d709caa62652ffbed89ccac1ec06593a087f07c50543afeca79. 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/US7VG2599762.
Novinha Eu Vou Fazer a Sua Bunda De Pandeiro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f6cbe7197e961492f9d35e10056f6190ebc1711eef25b9f4b8364c4ffc4aa1. 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/QZGLM2503025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3efcebbad1d6a1be20afb7cc85b05e6c57565839506df5dc4188638bac86b4cc. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZGLM2503050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c344a5f8a29de29b8fd156432857f6dadbe89b959533f6402a22492cdb07636. 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/QZGLM2501228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fa3184e69d2cfa59516cef33f6c211f11fee8289b2ba27bf0e73762ab69e042. 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/QZGLM2501299.
Engravidou No Beco Do Iraque - Baile Do Iraque
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x869b48137e2a8fe6316028210cdd18ce226f1b36fc3d146dcc7f05904261f732. 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/QZW9K2447711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f48bc5543f3b43524e0ed4fcd0a585680312d28851f7f208655649d7180f5bd. 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/BCIH82307812.