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 0xdfb8fec5444189ae37e57812cac72c6ab1d7e23ed0c2fcd2e23b77ace045240f. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e90c7af6-b86e-4c21-8fe2-723eec538fe9.json and https://artists.proofprofile.net/proofs/artist/e90c7af6-b86e-4c21-8fe2-723eec538fe9.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 0xe5ab1aa0fee9c2a9946fec6244059981ca7d679bc983266282ee7ce427e8bcf6. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T18:22:35Z), 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/BRNH41700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4e702ae4c035eb7ec4739f82e78ac2e4ec4a7872752ee0279d99ccf144dd381. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/BRNH41700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ef82633a8dd22977d2744e4c13590974293157f9ed647bc6700e19526d121c8. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/BRNH41700027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bd4b1e4f5c68f7252a1d0aca7096418a177dde2d1cb071d8ae68b908a0c3dfe. 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/BRTQN1900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8a25b8c670339ffaee020b00a683b4d59539d167b09ac078e8bcc808fc0cd19. 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/BRNH41900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64f189863aec6f641a1a971e421b814d679a415473f1c3bd18376a6d60f428da. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/BRNH41900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb71bf4daaf558541c0efae2f25062f2e1aecc6e9cbbf4d38e962dabbbf7661a5. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/BRNH41900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f8e8fd6646400440c9ae43bef00b72c553050a8d9e0150836c59c32b105f821. Chain 2 (Bitcoin): anchored in block 958625 (2026-07-18T23:11:57Z), 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/BXSP62000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43e7e6066ac9ceb85d12ae991f994412a92b9ab1d0a72f5523bb0c51f1d557e5. 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/BX6BD2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe468ba7948e178e935168f87db0bae7f09b4624174e80faa9006bdc34e0b7604. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/BX6BD2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x989de9c5e8bf23801ae8e2d2f9421d667908cc7c80d9e51a0b1815e474e38055. Chain 2 (Bitcoin): anchored in block 958204 (2026-07-16T00:31:38Z), 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/BRNH42100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e03aebd54cbf240e42c062cf3d6f9ff395aeadcd799c990631c0637e8875184. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/BRNH42100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ed62a6fd50f9835cbfb9c6aa730b6c57fdec7956c0472ec7a62f575587f0484. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/BRNH42100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43e7e6066ac9ceb85d12ae991f994412a92b9ab1d0a72f5523bb0c51f1d557e5. 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/BX6BD2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6b78296052c3b2abbc1af9e37c9599295c1db4c2e3f6d1e5fcb2239fa244ec8. 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/BRNH42100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ba106f422ad8bd547d28402bd55c135f9ef3a3c3ce37c53e57b3683716bb3e0. Chain 2 (Bitcoin): anchored in block 958613 (2026-07-18T21:35:09Z), 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/BXSP62300007.
Nunca Fui Desse Lugar (Ao Vivo no Sonastério)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x469bd201382c2a34c9cddbb6f3cc3ece9744c795897f76279088aca46c6984eb. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T16:22:30Z), 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/BXSP62300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x585daed78835fb9ce580e1441d8b2dd7e8a1c2ead7f63e8a370c59b358c1c81e. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/BX6BD2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d8801ea2a6919a7b299812f449a09770a276296702ab0ade6287292c964205. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/BX6BD2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb2b3b12d20841777e12652b8365ac7dd2b2c5a6ba5af5e2077084d982ddc233. 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/BX6BD2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe32dbe02fa5a8097f502d732f40fa265fe193a54496adb607c562228f2165d2e. 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/BX6BD2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x972d629bd9fe2be80f3eddc0d89cc578aeb5a8e2325984e7dbda8013b73c31f7. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-22T01:25:26Z), 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/BX6BD2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8a970e5885dd9b4387c4e0a983bba0f3931162f846a69520882b36ebea400d6. 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/BX6BD2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaf18ad66841d94179aed0c3753764c4c265200ad64c5cd6d8f81ee8e27b6aa7. 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/BX6BD2400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a14c28fd95d8db23734ee6c050b4b78d6cfc79023abdff26aaf3e4fa7e1196c. 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/BX40Q2000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a14c28fd95d8db23734ee6c050b4b78d6cfc79023abdff26aaf3e4fa7e1196c. 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/BX40Q2000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd489c791e4f084a32dd003b23c3fa240aea34f5f2a1bf6ce353c891b4a50aef3. 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/BXP5M1700026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64f189863aec6f641a1a971e421b814d679a415473f1c3bd18376a6d60f428da. 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/BRNH41900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8a25b8c670339ffaee020b00a683b4d59539d167b09ac078e8bcc808fc0cd19. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BRNH41900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb71bf4daaf558541c0efae2f25062f2e1aecc6e9cbbf4d38e962dabbbf7661a5. 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/BRNH41900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bd4b1e4f5c68f7252a1d0aca7096418a177dde2d1cb071d8ae68b908a0c3dfe. 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/BRTQN1900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64f189863aec6f641a1a971e421b814d679a415473f1c3bd18376a6d60f428da. 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/BRNH41900003.