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 0xdaec942f3887335029bc830bcdbaaeb0dac4c8382ac49be41f159b3888792b84. 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/aed48121-6871-480a-aedd-8678bc820ee7.json and https://artists.proofprofile.net/proofs/artist/aed48121-6871-480a-aedd-8678bc820ee7.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 0x6d0677c2f3a522f4c935e66c20554db288d221a0dad01129f18efb598e88d5ff. 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/BCIH82202804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dfa1fa3868a7b2be16e9e3f6c5393e04d8e662e3d469df50b55a362951500fb. 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/BC3PG2306716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7fb4c49a53eec291a6c2f6bd90e6304c869d34db85b239091dea652eb27b89c. 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/BC3PG2306717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa19ce1740851a1706d8965b4ee2dfe23e25fa4832d54dec9e7eeef2824be728a. 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/BC3PG2306718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe675c67f5c9296d99926c120f8a1c45b328f4ccd528bca2d4dbaca56e4d0dca9. 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/BC3PG2306719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x265a8037d2c17e8608e2f6464372cd641b064ee0e2e160f15faaed21eb26f0c2. 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/BC3PG2306721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1101f0b482301584b044d7baea9b48c885871456cae2878a1f562e662472d52. 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/BC3PG2306722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5116773904d51f3c8eee63a2f088152a087c829e64eb8fb5241e9181039cf5ee. 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/BC3PG2306731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eb74a36aa1a12b1c4b8e2721ab68506a3011278b9a3bfdea70a8e9b0b0eed64. 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/QZW9K2386268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x457114676818eea1d72ce76d6a2c55a83f8fa7cd432fb442566a7b9d0827adb3. 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/BK2242400654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x428184efd1ce3c63c852183a9b0da7f407b3e1d93c418f39cc70fa85240b7a80. 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/BCJKS2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd60a1e81c9091104442b7f7a7e0f6a5ac616102356bee8d74a6454c338a34603. 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/BK2242400747.
To Comendo Puta Com a Tropa da Marketada
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d07b79c7cb474d941c9ff0faaf71478374e5a2fd6579d600071ea0db99c0850. 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/BK2242400340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71c0357f3a73b4a59161db36fb9eaf7e506e51b3867d4348da9a44d7a80734a6. 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/BC3PG2401822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f966ad84ddb7f21f90afc795517ed8c3364e9b650d18a55e6f5de793249facf. 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/BC3PG2331076.