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 0x24a20c5953568f9b5bd5ee5f5be56356d4ee82d1ae5f6442772ca9b870892654. 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/688a5c8d-b4b2-4c08-bb13-29bf782a412f.json and https://artists.proofprofile.net/proofs/artist/688a5c8d-b4b2-4c08-bb13-29bf782a412f.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 0xff7874c08e032a7b7d307ba2a1ff4160db8501088afa7a63bde2ecbaee30989b. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZW9K2480676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39bbb271a6feba536e92eda419927185eac0bb376cbb751a015fc5fede9fd0c8. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:31:39Z), 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/QZW9K2489310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9522531d6ed6b915232f574b8914a4bda9f47823d723b70e69ff8c3ba57e780. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZW9K2489311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d5c97ed1c3e64a8f973b6fd8e67b0cd41bbcf0b03947e7aa68d716cfcc4df67. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZW9L2216583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3efe3b60933449d367ad2c8f015c0fcd90ceddfe538a4208d529416716cf3c42. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZW9L2216584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86fe462c32ee70df51ed119b8e2f85b72911d0143b8e726c4f88be7c2f6130a9. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/QZW9L2216585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89431ee78169d6d5a1572909ec044fc206d4c7dd463a1a22cf04cff11fcca1cb. 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/QZW9L2216586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x139bf6be13527d13f504f9bfca23f9ef8622ed4abd82875745196a6a6b2fdcf6. 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/QZW9L2216587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b5223aeb1c7c0211b6edf8e91334db49dcc9988cb0191ea3aaa07532d6febd. 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/QZW9L2216588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x098ba4300fee4c9586e77203ec0f297a6b7ac2e9f0890e57600625c80cc713ea. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZW9L2216589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33d5d5d9eaf01601a2cd0115a4d38aa67bc19b39d64a07b91c4990e3660a0926. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/QZW9L2216590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02b98611f0824d98ea33be842695f075e92ddd9d99688080964b819a530dc1d0. 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/QZW9L2216591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x778acd330d8826a2ea98dccd1198e8184bcef7a2f9cf0d44e7d55e8fe033cd87. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZW9L2216592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeecda10c0287675a29d98f74b6be4c643e02046f2ab597cdbbd4b5cc98c0ec5c. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T13:33:54Z), 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/QZW9L2216593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46f793679fe1701d8d13a5b5924b6423831f1e71ae0f15ade3da35bdf788c0a6. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZW9L2216594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38a1bad4cc92577422a992dfe29837351a5967298aae2aa0e847cb3446c70aa2. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/QZW9L2216596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67a26898ea2e73bfccf8ba6c78f820a7fce82bda5b282e4dcc8ba8ee8d1c6ba0. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:49:19Z), 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/QZW9L2216597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x640352d82d0b1aabc070c29ddb8e7b9b40c48f9cdad54b3b9853f0cf68113a96. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZW9L2216598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf10bb6ed0529809bf9dc10c004599fe2b384e17194ad36e6c065d7f1e2bff94. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/QZW9L2204646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd44f44bef0ef23ee9a27a237eccf64ac9bf77213a1b6a74450fec2c32ddbabe. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZW9L2204650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd715d2921d7136957992a997151ad2b86d8cd4df73558efc579f443e45622b03. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/QZW9L2204651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d14011f7b4f5d5a68f3749e0829cee37461fd98080adadcb823f4e9e12df31. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZ5AB1726210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d7edcb8f18ffa0fac259f07d85a4ef89a30b9bc75e33678c271388f519f89a. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZ5AB1726213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95f2cc1b1042dc9c879c734cee2026b780cb70aeb0484559d01e00f0b968df9b. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/QZ5AB1726230.
Sem Retoque: Ao Vivo em Salvador-Ba (2018)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35ac859c9102f22a121322f15a950d2487589b995a81b25bc604b7d49ac0c657. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:31:31Z), 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/FRX201928511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd862b39d476b4bf8ee00c810deb2d429046951cef361a6b237c6f0525029fb60. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/FRX201928516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5607f105df4a026c68781cf9ec24928492cc1094843711f8bb1424f7fc20f798. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZNJV2016970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2bd75ddbc039b798d095e1bbe59b44f5f0e5b88d98dd9ab54eb071bd7f54107. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/QZNJX2100518.