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 0x2808dc3e07a3444f4e1cf879a00cc927bbef468cb104f4d33e5ea544d35269c5. 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/4bffbc20-0a6d-4f1a-a880-223acf37d8dd.json and https://artists.proofprofile.net/proofs/artist/4bffbc20-0a6d-4f1a-a880-223acf37d8dd.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 0xd651280412c068e53bc045c39004390fbb8e1d6f236c4131fdc51e91d46e474c. 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/QZNJW2178523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21703e8c6f822747c82bd1ec17c5200dbaf5586811b3ce2fc15ffd592a247a44. 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/QZHZ51905759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb776c8d496156ababaaecf4a513eb92dbff07b59c336a6a5e22b5e48fe3b5d7. 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/QZHZ51905760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f4c1cc704bb3cd65e781d24d86b753a2296c2b1b57be7c6d534c53043f47e43. 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/QZHZ51905761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6abfb79d55fb060f0b780ab73045f32ccbb7e2beb355cade7f7d11bc17fc115a. 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/QZHZ51905762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbea229cf488e05839da6d7da8dbd2b791a003675505824de6525ce5a8f475e0a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZHZ51905763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bbf9f64774d3e5b360229567a249689add4cd42eb5ca4ab22518a968afec618. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZHZ51905764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4778f904b848eeb3dea9a9399a31b1a2369ed425f74c06d1dcc873f03d10429d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZHZ51905765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b6994840a9c55e1c7063786371e9f2445a1c5b7ffa3390f49906dfe819bf906. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZHZ51905766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0db9dafd0ec25527cf001c7ae41c2188c5d75f8140a7a45ee83259ed3d72d9e7. 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/QZHZ51905767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x399db1118a09e71aed71aa68401e622c9b674e68213be864f0e4c930888d024f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZHZ51905768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x771bdece4d9070e6dd281550d4e0c36f3acdfe8d306a78d1a5c7b85e824e4608. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZHZ51905769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9bb917cb73f7e90cdf7accb0b898d9b957ea6b995b17fb3863d312309deb60d. 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/QZHZ51905770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d8991d8b6352c2f9e0bb19090f075be89b439eff47ba2f552afc56dad982c11. 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/QZHZ51905771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfef2965e8563f8512f22f15931223c0d8ab95652a326dc7282c8739bf8aa4a31. 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/QZHZ51905772.
Enquanto Estiver Vivo Vou Estar Fazendo Isso Aqui
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb571e470152d03515e7c00f1bbe4f460793d256dd58eb14e381cefc8c479ad47. 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/QZHZ51905773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb40babb26df367a2e593453bee62e5f57c098f0928167c58c0ff64aad52f90ae. 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/QZGLM2043566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9b6e24d745a3a49f9b59395eb2296e4ffc583eea335f6c7abe6c6ad6e8ea490. 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/QZGLM2043567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x309551eecaa53c244a9fa620b00937e664f8e0a0e73d23eedf2fab8102600fb0. 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/QZGLM2043568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18c6c6eaddaff42840880784ececc62d51ad31397b84638d07daf3d9e02b3f71. 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/QZGLM2043569.
Minha Vida É Fumar um Beck e Ver o Tempo Passar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf09a32b8a74b4d09ec87744840f18569fcf691c8de0e16cc4ee9decf40953d48. 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/QZGLM2043570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5e9d81f37539ab6f98fe0efa5702a6f8a55b8ee81cfcf34ebd9c2439b52ad2d. 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/QZGLM2043571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd94a96063f4f543c920339d77fa205e7a756d06b0ecae1d33a5116d2c71268f2. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZGLM2043572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef8badffc593865df5da8dfd9d24f0cd1279ef1b5e582d3f83abcdef8dff33f. 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/QZGLM2043574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a1ffb468662a917d10eb23e883e8a125908ab4d03677c952b93fc85f299f960. 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/QZGLM2043577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbaed11ea0d3e199a2ee951993d4ec2676957c73015a916e610933e5cee6ecd7. 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/QZGLM2043578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x663c163ed148feafdfcdc3a1586fd2f50677052517f4f3b9f53b221133d5e1a6. 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/US7VG2019552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61fdbe7af3dc626e417c862ecf06c0cc6bb037ccd45cb704da88a388629b151f. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/US7VG2019548.
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 0x999e583fc64b9e023bfdcb0c01294ee3089bb5b57703804ca73dba4d7f045434. 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/QZHZ62041428.