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 0xad4886da4ddef0939bf5bf692a03968ba89541c696d8ae59154dcd5d44e0c0cd. 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/b4977763-a751-4a9c-9493-643c255faac6.json and https://artists.proofprofile.net/proofs/artist/b4977763-a751-4a9c-9493-643c255faac6.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 0xbb104e2ae617b56742ebdf39412527aebd09825719ba5cc528cd9072549e805f. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/BRBMG6300033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b84695eeb0ac5a68249d09f4c45e40dda69417e160be5c7e5353b62b34e417c. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/BRBMG8400148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f2dddfe9c377e3fdca36a90b4b9f4ed737c1ef82788a41ce0d51cf4a9f4581c. 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/BRBMG1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6626010edc7a948aa10d32745986192e78e72edf268ff8b4ab7592199b311e62. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:17:15Z), 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/BRBMG1800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a8403748c520c690475fd3efcea3c5cfec24439437b580a85a3b892bed0093c. 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/BRBMG8400150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ea5ffc952b140b7be492210d170a1e7168f26dc9dc2fb707acbd9209b4b2eeb. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:26:12Z), 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/BRBMG1800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63923e16c063bad859f2b94ede85774d2d5ad02b275a2a68bde1f8c42f7be004. Chain 2 (Bitcoin): anchored in block 958656 (2026-07-19T04:04:08Z), 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/BRBMG1800024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0348242e97223cb0144c2bd84659ff8774d8469d96f5ff4daf70e94c0b2d0d0. 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/BRBMG1800028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x881136d52585ef4dae8693c6833937aa06e5c1b2831886bf577f18a0a2680628. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/BRBMG1800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa110d6150d426f3c2bc8f208f0202047b0f8bc47b0d2a5f162db8f21f72fc091. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/BRSME0000147.
20 Super Sucessos: Adilson Ramos, Vol. 2
Sucessos Moacyr Franco: Suave É a Noite / Eu Nunca Mais Vou Te Esquecer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23a1ff67651ec44ed2dd3ff66733bffbcc2ebcc64e18d328f0b2298dd1f34a20. 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/BRMAX1400302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f0844a0ed6f6c0de37731037403ff86a1b3847f49f6897246c9d4480e7e7689. 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/BRSME0000155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x787d7927a23e691943ec54466e9175a51af62b7bd7db4edd266ae5d6df52fd74. 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/BRMAX1400149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6b5ee09a31f7c39b8bc551e62b9fffcabdbf1c4e5d29c309e799623a2d63f21. 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/BRMAX1400151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fee2d40e2d17841c457e7525300cd7e87059a73d9ba9a878d806e42140c7f31. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:26:15Z), 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/BRMAX1400152.
Pot-Pourri: Meu Nome É Ninguém / Ninguém É de Ninguém
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25d6163f38ba57cc62f0be80628a091e089f76bb44305ff2b9131e6aa68c6ccf. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/BRMAX1400153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86007fc3eca6cee64e0d74b4ecab179d1bb00771e24941d7564580c88c0149a2. Chain 2 (Bitcoin): anchored in block 958378 (2026-07-17T06:45:39Z), 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/BRMAX1400154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8967659b34fa3a2894c51515e806f79113ba1b685ec1a10fa8c340311b180289. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:58:20Z), 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/BRMAX1400156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf23b5ae72b77810faa50634c0416f19739f918cdbd14504430d17c76d7007055. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/BRMAX1400157.
Pot-Pourri: Lêda / Solidão / Matiné / Olga
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd13ea0db7c2239b6b34c2dc14ccee1d47cf5d9a1f425f65b57a276651bffa1b0. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/BRMAX1400158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x020c3900c22b539b29b8924b5b744fd8231d3fd1dba5765c107882d821c7ba25. Chain 2 (Bitcoin): anchored in block 958911 (2026-07-20T16:46:31Z), 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/BRMAX1400159.
Pot-Pourri: Sheila / Perfídia / La Barca
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb03f1e6ce2750b6f921b368aba83779e4e75338a2c38f8153fabf296ec089e3d. 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/BRMAX1400161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2703b568166f1a0473405ed2d6678c980509dbc76102ab4e9ffafc8570f550ef. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/BRMAX1400163.
Pot-Pourri: Fim de Festa / Erro Perfeito
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3bc63d13924dfa42bc42bae4e02868ed8d6b2fd19c95371d22f460353734f73. 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/BRMAX1400164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d55ecb08c4e779f6f38a9933e002d612a53667e2d44a3772abe398328de4805. 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/BRMAX1403182.