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 0x60359a5a382bd45edda29db8a78e99534d1f194a56d75460ca2393908850ebaa. 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/ef5376c5-cec9-4f58-946c-9aa659d15a5c.json and https://artists.proofprofile.net/proofs/artist/ef5376c5-cec9-4f58-946c-9aa659d15a5c.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 0x101995eda8d2b261e50ac5559f6d018b18c2303046e08ec6101a5ce1b0cd6204. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BRWMB1801263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64e26c6b7b1b91a47ae0b9eed70b69355793dc0edfd757b02d0c5a065c6c544c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BRWMB1801267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5431d48bbf79b2093770422c7310f9d64f480ddf179017b2c43a0116f306536. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BRWMB1801276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee6523a3989c47ef52947da0780c8474520c8c0f56fdfd68cfaa3bcd605d03da. 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/BRWMB1801389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b7d31ab8b45b3c91ad4ceaefb98726f3a3214b0e1572d2e043799a95398b7c2. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BRWMB1801268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe057462d2a06394a8aba5bb1e693cf5ccf315b8ae41c3d9d40bd7839b7e3ca81. 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/BRWMB1801269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfae2d7b3fb7829c76362f73d6555bc71648f5e0ff0b01dedd645652a643bfa21. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BRWMB1801271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86282232eb73159952c6f6ce6c5d564f43dfd5c26020cd998d8ecefdc37b1dfc. 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/BRWMB1801272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa56c68a969d84510c6dc61a5608933448ec961f76920dad0911da3543f98833. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BRWMB1801275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36f15fa0a9a2093cc6104a554e169ba96f7eba14310246be7658907afb83ec47. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BRWMB1901114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdb904798e946946d5792663b16b674bcace23ec507aa83f80ee02055d666660. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BXARK2200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc51c8c77ad4965a379cf1f930a93846619f6b37ca25f8c1c90d973dd6228b739. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BRWMB2200153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ad81818620250fc2df0d5425a13418d4766669e84994e6690c29d441341d7ab. 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/BRWMB2100473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd030a43f54e85b5fe3c9352e3182a6b705dde6c4c23d2a5937834c56a9a3cd60. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BRWMB2100440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x812c74a8b03476064f3d4e6b7477e685800ee163151c6a46748906f0c598cd78. 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/BRWMB2100258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1e44480e7198b0514291307436b6cc5e8932f6bbe912475bb23d396af4583aa. 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/BCD592100017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6e4cb5507d4d4710c15f4c9ea1f9af1bf984c1d1b370d6d6f975b9e5cc04dd7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BRWMB2001068.
Medley: Me Namora / Glamourosa (Rap Glamurosa) [Acústico]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3008f864ed68a41b5f9194de7538c5226aef28e24c69a2022c92839c0b80f675. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BRWMB2000919.
Medley UM44K: Grupo Bom / 4 da manhã / Nossa música / Solução (Acústico)
Medley UM44K: Grupo Bom / 4 da manhã / Nossa música / Solução - Acústico
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x016f16fa477e82f1486423f9f21979dcbd7603481f4bc18b2b1897476d013bef. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BRWMB2000863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a9a560516c7221555a961667963e54ba066070839f93b795aab8729a82e6ce0. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BRWMB2000694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22d73ff1749f6640a98ca35d4ff3e62abca1471ff05a1d1f4cad3325579bae24. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BRWMB2000328.
Pra botar a mão no peito e cantar de olho fechado
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92ba91e71d74d71925245eb40035d8ab1432c0bd6e9b3d524b7d936bc48ad78d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BX5QD2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc210ba2c347d46489dc18bea134f8d102a90e986af5fe93c1e28cde7b475260c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ITR001300225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd2f460880e8cd71b3166a3d212bc6ae35f8a757e5698d65c8ca79114626c2c6. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BRWMB2101191.