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 0x979b8b796c9ac01950573b5c4bee3492020b068ca884d80ac4ff31d8d7c02755. 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/15b0093a-2127-4fc9-a396-6a57cdb308d3.json and https://artists.proofprofile.net/proofs/artist/15b0093a-2127-4fc9-a396-6a57cdb308d3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Animação De Abertura - Turminha Do Animazoo
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 0xd6f5fb2bc89a33fa2536b4d78dfc31e21ba88e191584f505653ccb8a9577321a. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BR6EZ1300092.
Indiozinhos / Animação de Apresentação - Danda
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92f4d7dc9ba1ecffa3072757f59ba22dcd02bd753ff076a1aa2a4d6d3eca1dbe. 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/BR6EZ1300086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x210d22308c5b60556d64701f94eb44e8fe3d3bb95734ec931e6a5cd3cdd936fd. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/BR6EZ1300089.
Abertura Com Apresentação Da Turminha / A Hora Do Banho
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76999becad14bd26325336e50f0ad3df5a16fc35d735c3df15529244779b48e6. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:11:58Z), 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/BR1331500002.
O Mistério Da Zebrinha / Apresentação De Rafa / Dica: Rafa Natureza
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd74335c047bb9254e78b41c5036f424f9fec42931ab6680a95ccadcc3ba157. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:05:39Z), 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/BR1331500009.
Cabeça, Ombro, Joelho E Pé / Apresentação Do Kako / Dica: Kako Frutas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6ee7df962f06d4d6c60c0b0ad698543b4b4033fd00633354a7c3f2a5db74a59. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-20T00:25:58Z), 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/BR1331500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabef6b3bb07fab4a9f1a9cd99e83b6938a29c4f6a56901d2109b4ac5ac0ecfe6. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/BR1331500029.
Vovô Chico Tem Uma Fazenda / Apresentação Do Léo / Dica: Hora De Dormir Léo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe73c5b82df67d3b7d97ac901117a3bcf8fc0ae0b0e41d324c2ed6bbb87507295. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T03:08:32Z), 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/BR1331500014.
O Ratinho E O Relógio / Uni Duni Te Do Animazoo / Apresentação Da Danda / Dica: Hora De Dormir Danda
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a5ba798bf7c49defc03b1d63e337466da0d2f6fa208a394ba306b76e2417b08. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/BR1331500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc304f7ccbd464af1f933dc15053b4222b05134eb35aff36186880123c7a070b. 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/BR1331500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc84c5584618d8b376e77858b2077de9395a357d6257a57a39f02cdb2bf20babf. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/BR7UK2000143.
Canciones Infantiles para Aprender y Jugar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59d14ff0e500547e7aedf07157baa66569aa9b3240568b97d0bf7222e638f5c9. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T03:02:39Z), 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/BCNZT2100118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12d833a710fb3724576c96be0d8f583c323b5062e09894522d873990ef2af2e1. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/BCNZT2500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2349bf7853cf9f0ebc8009c63954ef3cf2a1b024202882f879711f223a1c521f. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/BCNZT2500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1b83d747c4a8fd2225edddbb07562bc7ccd13628891607eea8f47fc249b2cb1. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/BCNZT2500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b845cc93d3e8dab8fd74310e66d7746758f6b408dd22dd8ffbd29323680971. 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/BCNZT2500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ec3f8540bbc8f9510fec29527d3207f930ec98dadfe2f2644356902ba47f9f. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/BCNZT2500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e063ae8646e3c73ca95f7116ca5d29ed463d7227e746b04e68c234e5ae71749. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:53:02Z), 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/BR67K2500016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64ff2472ca24967214ca2099462979921075786af38c6c0484e9a7bcaa9bf013. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/BCNZT2500045.