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 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 0x71ceb2dd42a8a71af042bc0a21ae1b5e168a471765f7470c8344235f3075a1a4. 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/cb65d2a4-812f-442f-9e6d-c63177892ccb.json and https://artists.proofprofile.net/proofs/artist/cb65d2a4-812f-442f-9e6d-c63177892ccb.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 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 0x82bffd910130147076a4706dc6269f7fac25a5b9254c12c15a8f172102de7849. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/ARIXB2307537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc60ee168528eb755abaf37a97a7e98cef8e92f757c480c53b782923f87b983b3. 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/ARIXB2307538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x598160e97359eb9d4476242f7488b61e281b05cc6a208fb5b2f3b54d83c64637. 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/ARIXB2307540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99e195f4d4b9b4e564a6e9de1926c18c96a8e8d439e93ff8dbf39e09c79107c1. 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/ARIXB2307541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cdc99baf4743b1ca4aa5ec5743568a589ab31a27b29e4984093fff7647aa068. 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/ARIXB2307542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b69ddcd326537b4fac79d9cc6e0ec27ef64c04df1d495dcabd0f9679f558c4d. 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/ARIXB2307543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ca6e84fb1efee09ed7f226f2610866bde79ebd153b54d44da943d21c0d3e346. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZHZ62071168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46c1fc2b91cd4138180291696a14bdcab563d925ee4e607d389e098b1ce6f8ac. 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/QZHZ62071169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab7525e312556873664530a8c84ec4935006386ff08a316901d387cc1e158359. 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/QZHZ62071170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5245a586a0d2f4aeede09d8e1fb823e6604ca18cc5ca237634713b4b635ddc19. 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/QZHZ62071171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c56f0bd3aeed936edbceb3f505803f4d81b910f3aa64c8843363a7efd6b63d5. 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/QZHZ62071172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf79caf2f42a54987c7b4c07e5b785d8fd45eefe2de0032491370e9b4c5540375. 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/QZHZ62071173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6781dbb134373cc8cb4ec216b07d76bde3fc080ff95a7302175ac48744b523f5. 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/QZHZ62071174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90bb2bc3365aa3ccf37bb70180d759244a4a21504cfaf47509a53824673f6e42. 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/QZDA81853807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22b2f40cde1181a56fbb679d7f6ce4bec7c09480b6103cf89f288f9ba3f55eaf. 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/QZDA81853808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d519022c6d005691caf97051c79d707f26e3b100becb6f35511c0eba6ce1f97. 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/QZDA81853809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4da897b2fd218b733f561a3f4ac7799393033408b93b9b75e0b132f264c5df8. 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/QZDA81853810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2271050d1781b4230b32a323bfbf003fb4dbdd31e8ec951175ef566e8b915aa8. 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/QZDA81853811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7ecab3cce6e18b63a2851b197527330454c1be879e96125456686c104964c4b. 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/QZDA81853812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8038a6b23759eb20a7645761c43b1fac69f0aa11dd2a1ba5a69a54067ab26e0a. 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/QZDA81853813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe548bf971448db8a463efe9c3c4c0d9226824cd2034dbaface6f6fdaa31cda8e. 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/QZDA81853814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe05c5a7509c8553771446a535b578a53fae8407ba37299194ed2d2e1f9c4ddc3. 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/ARIXB2500409.
Si Te Digo / Santos Dumont - Live Session
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25754859feff3fc22feaef4ef71421b7f7da31e9e0e8db7970993c72155a75fb. 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/ARIXB2402930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70e7e95902bd07d9a1a101c6073ce685dc30a7ee3695735755b3454829fcfbf5. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/ARIXB2402931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a9c6021a769d1d0c47aa29205ea2d6b1a3d2b2426d68ab5bdc4f4607a0e63e3. 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/ARIXB2402354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x810f983f942a9adb17d5517f44fddd8461cadf0ac722df2c45bc213f178488f4. 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/ARIXB2205202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x451c2e3d92fc52d482432f0fbf3e6c4eb1d3c8b22bd9ca930096bdd6b6720dae. 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/ARIXB2205758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ef022ecf993cd0b2cbdbbcc2c4cb99a99aa273f59fc8018ad090944aca9bd29. 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/QZES81991899.