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 0x2910a75455f9cee1e40e19c93c43531e7fc5cc628437004a2e3b5ea09a0df5ec. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f76e12dc-84f4-47a7-abba-fb25a5719123.json and https://artists.proofprofile.net/proofs/artist/f76e12dc-84f4-47a7-abba-fb25a5719123.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 0xcd35e000ff90f82041ecddcb120603073b920221aa3c597ce2c3e2d557f54895. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/BRLEO2400225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50a1aa095d7db6f4d28d85503a2dd05c6da8a16734afa1635bb654ec9a1cb5a9. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T13:52:37Z), 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/BRLEO2400228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d0ad653caa97e7b960018a8981bae606cee29d4f8192b4498bc2cb900afd25. 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/BRCID8400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce135f9bb004f947278beeaee1c104371c539b4202d054e6b88113816805f0d7. 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/BRCID8400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebe64250fa5e7791a7c734ef613ae7bf2b218d14bb7fe2ba919efaed62a8c634. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BRCID8400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6362fdfde091b0791e88ff19a41f0af63765efd972eef734f92d3483bb948e59. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BRCID8400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74720fd7d0c11434037c8ea3fc2adb4679c7b76ecd806b2d8fd86af4e65059d1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BRCID8400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc63b5844123be7dc5258ec6a57ec4b06c352578d2ec65856f585aeffa2d8772. 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/BRCID8400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf47999be1796701dcbaa46760b41e18098a0be01cdbd8a35b62047bce28b023a. 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/BRCID8400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2b7cdf93fd4b23a9258a50e0ff0fadc939b6eaa42188247f9ac9f9fd6b9c6e7. 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/BRCID8400013.
Partido Alto Nota 10 - Aniceto do Império
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf181e95f9d98fa62685babe92025c93e23533ef3016b6ccf49ef958760bdde3f. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/BRIMU1802387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce135f9bb004f947278beeaee1c104371c539b4202d054e6b88113816805f0d7. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/BRCID8400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebe64250fa5e7791a7c734ef613ae7bf2b218d14bb7fe2ba919efaed62a8c634. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/BRCID8400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6362fdfde091b0791e88ff19a41f0af63765efd972eef734f92d3483bb948e59. 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/BRCID8400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74720fd7d0c11434037c8ea3fc2adb4679c7b76ecd806b2d8fd86af4e65059d1. 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/BRCID8400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc63b5844123be7dc5258ec6a57ec4b06c352578d2ec65856f585aeffa2d8772. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BRCID8400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf47999be1796701dcbaa46760b41e18098a0be01cdbd8a35b62047bce28b023a. 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/BRCID8400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2b7cdf93fd4b23a9258a50e0ff0fadc939b6eaa42188247f9ac9f9fd6b9c6e7. 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/BRCID8400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0a1fa4ed11562eaa521364c08027deacd6d938550e7f1a545bfb4f23825e4fd. 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/ESA122456028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55be47b9109c1a075b679217150d97ddcc30a6533bd31a594bedd0ecba96f59f. 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/ESA122456029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x603fa2201c98398dd9cec304ca7c57cd0e2cd510f426ab95ec06a1741f9f55a5. 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/ESA122456031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e11b0102766c129c047f390f5c38be41b7dde71ac7da00da1ac2b90ed5f53ca. 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/ESA122456034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x659ec5fc02e46f777cb88819a8dd7871b41cf0e61fe093e523e752954e41466b. 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/ESA122456035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6cf40f1607f5e3114e4f764df33cbb5f1b31899d30cf1a9ee6050cac5019a28. 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/ESA122456036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0a1fa4ed11562eaa521364c08027deacd6d938550e7f1a545bfb4f23825e4fd. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ESA122456028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce135f9bb004f947278beeaee1c104371c539b4202d054e6b88113816805f0d7. 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/BRCID8400003.