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 0x65523e6a004a17d4ab69ee159096f3ad931ed01ed98c6d5606f334b521549453. 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/edb41363-88c6-46bc-93b0-4f1e4f595216.json and https://artists.proofprofile.net/proofs/artist/edb41363-88c6-46bc-93b0-4f1e4f595216.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 0x4e26abc83d972884d19a065b6e941a9e92b2b0a88eecdee240fc6ce0b74005c9. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/BRIP50700386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x740f63931f6e7f83ea3071c1a809218a98fc146faac0472218ce020e8b8ee128. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/BRIP50800949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x850b16a425c7548c322278de624dc60c27b764663ce5cc3f9a65ae3e69dc30bd. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/BRILA0300622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f5c3f2874b758b67ef6d8a3f47b94492d9ecd70dcb472c1b00bdbafa82a1010. 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/BRILA0300623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cfef9917cf12a15e7467be771519c11c40f630ffd26d5e24bff76d79cc893e2. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/BRILA0300641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6204d2cbd4dc47db8b5e766a9bc3efe94f63c70bec755cdbda30b305516a4832. 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/BRILA0300625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb90032c0adda276cd96ed5cc6b39f5f4e31bd3502a097e3ebdd98fb6612ce860. 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/BRILA0300626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb33ac73b9e343e90423429eb9db255cad0ed573750a1a5867d3b2c9aa36e0410. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/BRIP50800317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x141e8953e417a4da0d0145075b83ba24ca0afb95707caabeda178da5c972ad67. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/BRIP50800382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6c7ec5021009fb6c7aa9155aa6cd1196239d2c24c2979715a3b1299b580b18a. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/BRIP50800319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x296a5c8fa4465d019026d7e28552c0b1b205155a28c8d9c3f0c139e1581a6012. Chain 2 (Bitcoin): anchored in block 958496 (2026-07-18T04:43:53Z), 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/BRIP50800952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7484cf7923e917546b073208b5bb7fa5bda4427f884b9e3fa0a66da71e8ec38c. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/BRIP50800347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6c9091f8418e39bef43fdcf036696fa8e70cb0f9776ccefe6f4ebd816aa0caa. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/BRIP50800349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9856dfb6fae0406381bf990a9155b64bddac6095c9e7cb61ba0a42940bc469e3. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/BRIP50800350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeafacced3ada253d2fc2dc77e61e26ce06125be15171ffd4edb26c3a7c456659. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/BRIP50800332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc997c027a73a9e922728e211e1f2789a5c7c60dd20c8b1c6ed30ff7b5e4ab55a. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/BRIP50800345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9256a2a4343c0f30c777fbbccf10fe5feecb21784ab59dd2a212422fbb813bbc. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/BRIP50800333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x740f63931f6e7f83ea3071c1a809218a98fc146faac0472218ce020e8b8ee128. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/BRIP50800949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcebbb6aa53afb3aadd69fef025ff635feb6383b13685d312f7c0d83b28ddfe4. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/BRIP50800948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b94a2986169458cc8275169efc4acf8251430a9ef503f36be69ce119049e628. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/BRF2G1502252.
Lagrimas Sobre a Mesa Madrugada Gelada Copo Com Batom (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44071ff15a8e1b6ff77abf233d00729a42a6e64079dce0d47a5aad2d16160815. Chain 2 (Bitcoin): anchored in block 959018 (2026-07-21T14:12:28Z), 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/BRF2G1502256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77995def8ecb25199be83705b69437e7ab95479ecb0809658782139124d91ce8. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/BRF2G1502261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd001f99f79e13f3cdf35aeae72bba5883b1e5371358fa2ce32ffd5925ae4a235. Chain 2 (Bitcoin): anchored in block 958369 (2026-07-17T05:20:29Z), 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/BRF2G1502264.
Bela Senhorita Drama Você E Eu (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fbb1f8f3edff218cf7e1247ff94dfb3e9698f23b3a5eb6d72e4c737fbc7ae6c. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/BRF2G1502265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x374e17a78c31922f00d9d8162ab022eb82c4920741ad899038b9864cbb22899f. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T05:43:55Z), 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/USDY42253498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad5b5bdca0a8c4c8847489b6b2f3b453807bfad46d805d2dbe06afa2a1f23131. 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/USDY42253565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x119f7b8744ab784e3a8372eb9e82a8ba3191bad01df13f0fd99e5f3d89af0764. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/USHM22247823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2af1f0c34ec280631dc2101565a72f8f035f6c54f6135bf669ce524d54d2f003. 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/USHM22247999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8d3fd3e8106a0d8970a176ce87cbea5097fd0340f514c238a9cff335874b94d. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USL4Q2240722.