1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x3547e32269b65af622a8880fcc9c8e621aa20ae478116245089b21064df5e5a8. 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/ba9d00ff-e6d4-49c2-b3ee-48380302505d.json and https://artists.proofprofile.net/proofs/artist/ba9d00ff-e6d4-49c2-b3ee-48380302505d.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 → block OTSBitcoinBlock must exist at that height 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 0xd1216ccfe4ccbbd1726cceab835cc694775091ef4cd05ecb55a7719da81d5acc. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-17T03:49:53Z), 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/USL4Q2442819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x799a76087552c85c0c4d5e28bfea004a684ca1fed46915b525f421878998932e. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/USL4Q2442821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08020fa7f461182a519277dbb9aad4e5acc2eadc804bf2733b72549de90222e6. 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/USL4Q2442822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a5d859e199e51eab75eb54d8b45c43174dac2e52dbc28e0b968afc288a748d0. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/USL4Q2442823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20af6146973ef8b4e83fd92238788f027d5311ae383f569f52369a08338eca14. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/USL4Q2442824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96624b9e33480b2f095ae32393183ea34ac2b7d6b020fb1658fcd61c1188dc62. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:02:03Z), 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/USL4Q2442825.
Ruído Branco Para Escrever e se Concentrar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6586080c5ad0d7fe2ac0fce4289cd66ec3f6f472999b61953806eff6fab8f16f. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/USL4Q2442827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c4071620c9b88416bae9f10b93f40a0dd7ec347d86d4d5a71a338c1cb301bcf. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USL4Q2442829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x522eb8c47fb7fec6fb6e5347b3a16592c370837a49169260a16a2d2a2134665c. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:22:57Z), 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/USL4Q2442830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee6fd09fb9c286a4bfae9d188cfde0b20186d90952a6c818e5689e45c3f760b3. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/USL4Q2442831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6523ced898c897e95e497adad96bd2d6986922f3f58a60251d4c7f5f73404794. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/USL4Q2442832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8991c7638e56301d1b93ce17791d48acc0898e433a622d984a14998b3510eec3. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/USL4Q2442833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaf03a376f8dde5ad637e95c9068c15274462c87f418307180c300ac22bf9ff5. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/USL4Q2442834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97786b92bd96465a5fdf24be31a1aefa8b458858aa193c944ef63530c7049f39. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T05:03:25Z), 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/USL4Q2442835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee2fdb702fff4f7ef0b08743d61e86d9ab76f97302d58fd475c1ea7d55817ce8. 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/USL4Q2442836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5cb3481b351dc7da8e69c7372821e47657cd1557ed13995e730dfde720fe48f. 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/USL4Q2442838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb45b6920c23252f1ae301bff6d569ea094c69ae90d843dbeb383c0130252787. 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/USL4Q2442839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa380ec5863a5337f26ffe5943a1e2dbce3b01b181ff76bf7a7900942f034a363. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:48:52Z), 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/USL4Q2442840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7348f5401caa9d42963fafc9d8c38cf5aee49f6314e78dfc6468929fc178e422. 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/USL4Q2466586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2087df390a4a02c543610cadd6af879e294fbca1c02433c52f46f178fe0dfadd. 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/USL4Q2466587.
Sonido Para Estudiar Y Concentrarse (Loopable)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeb55f2e67abe3a1e3ba58475794f0bacfc0888f61a4b622a2bce7b1fb5090a0. 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/USL4Q2466589.
Ruido De Fondo Para No Escuchar A Los Vecinos