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 0x7619284aa766b7b7c41da25a7edb61c54bc9dc126ff1b99f931d1dc3de9e9a40. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/46061014-d1e3-4dc0-8af4-472469a456d4.json and https://artists.proofprofile.net/proofs/artist/46061014-d1e3-4dc0-8af4-472469a456d4.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 0x93ec5e36e22a03d3ba087e1a13c5af3b3a28e908ba94f108afa7c83276c33e59. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QZGLM2210144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e06dedc98e45292b92dffa23bf17910c9011c3d67e02229e4ea99c1214f18b8. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/BQBL11100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2361a33f75d94485506ee7eadc19baa3800629df4a4f84211dcf58b9e6b2a399. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/BRRL11200027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d5e35dc5f77397d956229da35316d9c389c590037daf1baf778157d255171da. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/BRRL11200029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d550d8cd43fb1f09d119fe22fe59c399fd80f34259abba82ec2b7178293d808. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/BRRL10900059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c8a32ab3734cfbf6c8ea08fd503e3113e2335a9e6004ffa8976aa8269302311. 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/BRRL10900060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x184f55292f91cad7d334b89849b830bababf1f17dd2694f9dc68a5c924957bf2. 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/BRRL10900064.
O Meu Deus É o Teu Deus (Especial Mulheres)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5651d76e5e74001f72a6b20a68ca4a17301f0d28bc33acd9ad0309c4f0b6776. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/FR59R2097908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47fb492b596a4c74f1bc5ecdb1c4844c21e0f9518e5e0d25754c7b774cd921a3. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:26:10Z), 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/US7VG1941280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83a17c67e594768a8f951be397dac521daa859575e497a6269202b4dd1dd1cbb. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/US7VG1936084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88f50ffdd7a7377a1417aec63cf7c5afe9d564b9220b15ae026b54816a33ee7f. 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/BRXMI2100109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0cf36bd1cee90528a5cfeb278352bff5f8b6ebcf6b957b0f9ab77fef2abca6c. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:46:33Z), 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/BXE2N2300052.
Pout-pourri TBT: Não Vou Naufragar / Ele Veio / Eu Nem Sonhava / Quem Foi que Disse / O Relógio de Deus / Coisa de Adorador (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0e72ba8af89dc3942458ee141b2164243199ae44fc87ba481fb9ae076723ca4. 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/BRXMI2100113.
A Glória da Segunda Casa (Álbum Completo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bed75c8a3d916a677cae9eff93a41514ce1f33571cf46a9f52006152521a9f9. 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/BRXR72300034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd7ea12b9cde5fd72e178ea3e42a97e35bb30f77a2ea9ea69b4f0a5e0a12c51f. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:19:28Z), 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/BK2ES2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a7a20fd0405bfcacdb043f50af596384ce542de039ddaa20357d5ae6492d8bb. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/BX6842400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00ea56a11225c233802320fc97ef4ab60f409cd3a2e564ee5a45ecddfc43ed9c. 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/BCB8M2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc279e4491dd7e06aea93aca2d06f5698a23b486462d7acba35e0327117cd17c7. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/BCB8M2500027.