1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xe4c34fea481738132cbb0cd2d5168ec5c2c96602789d562b3a92c78cc6df520c. 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/08920339-6f21-49d6-b11d-266903cdb7cc.json and https://artists.proofprofile.net/proofs/artist/08920339-6f21-49d6-b11d-266903cdb7cc.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 → block OTSBitcoinBlock must exist at that height 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 0x4ead843652cf62ef7900c1cba2d9d30d10a076afcf001b4490730027423c1e8b. 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/BXNT62209285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc605e0188c986640d8cd06c321c44c4db7fc34bf23d4f00516e77695895d338a. 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/BXNT62300095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94e8f23f33e75881622aa65be7cca13332f64dcb8f7cf4daa9511b5e3cb50c69. 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/BXNT62300097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a4ca3e28bdcac416b4b81392e18b512fe3a33ffd3a7c1ddf0f322c9bf4ff1d9. 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/BXNT62300084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1af9e964953e9bd24b418f1700d99b56deec6083939d15f3c10b5685d32eaed6. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/BXNT62300107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70abe20a6bc5f52737c3fab18356b03e4d7844ab76a9fd762b7e32affe6535ad. 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/BXNT62300099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a346b847ff4ac21cf4d69a0727037668b21ef46f313d4a273c80927bcce80e1. 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/BXNT62300101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa0a2d00be01f2a7f5348099d08866b2dfc35accb451f572376c5ce1085ac00c. 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/BXNT62300103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28b96b81f6cb190b0ed28c02d72989dee175d62cbae1282f21492fa85e7e536a. 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/BXNT62300105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb0996772df2ecc1a016449bef05ab2f8da8be014f1182a12343ee72ea38d3fa. 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/BXNT62204533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2f9975a8f7f0d7e9c8deaddc085a22da1da40089f7f0e9595b255def3c971b8. 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/BXNT62204536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x082b9cfd6b37c2cea59730762b722b36c70b4c6c613d55e16e25eb58ac94600e. 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/BXNT62204539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb32bcc804b4e6be1426021926e6a9e73bb8253a2824fd291c973e8f7af5a24d8. 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/BXNT62204542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15e9f75387cdf9ef521201b038436b18b6af226adcf128ba45312b5ff4748083. 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/BXNT62204545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fac29a8e8fd33990aee722fc92a500c17a3e9d81224618510a5be22c965277e. 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/BXNT62204548.
Aprender Com os Erros dos Outros é Uma Arte
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31643a377cfd23a8ee051664c21fd0a722590276e13de4890a1e5fcf34770e28. 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/BXNT62204551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffa26522942e1bdd8bfb0f102c2c7ab687dcdc836365e5dadb16e801a0caef94. 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/BXNT62204554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9a6569f255c3a80de639f2752fca9f5283da245a19f50ee95f8816619b87aa1. 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/BRAP61900045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc087f691ce8ca4fcd9f36ac8370fc67956deb29e267648365e31062b05aa9a4. 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/BXNT61902588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc087f691ce8ca4fcd9f36ac8370fc67956deb29e267648365e31062b05aa9a4. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/BXNT61902588.