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 0xc305ed90f6b052ea6298d53da31526985464fc74426befe1533be6e9936650af. 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/d1a6b511-d551-4d1b-9844-fa3e3267c415.json and https://artists.proofprofile.net/proofs/artist/d1a6b511-d551-4d1b-9844-fa3e3267c415.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 0x5a48213684cda51d1d7f8e0ad5d162c348d5af6903d0bb9f21cfa34ba16b575d. 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/UK6821738791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b498d7397f89c65e94530829f439a8576a27d8fffa39c04c09177971c60f212. 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/UK6821738839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc247cbf62d366ab3c4a2ad27cb592d42d926653194357d7dae24d3056eef62fc. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/UK6821738813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb529fb3603beab11db2483eaaff60af0bbde9d12c18e75eac9dcaf4f7ca0cde. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/UK6821738851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ef790355750f0117cdbb642d3655ab36ad5f412912a4f199e289b096237e3e3. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/UK6821728776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18b185f4bf39b21da24420ef319598bb3a8e53257317a8939bea9e0c5ffa8f3d. 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/UK6821728490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec5034f4b5b1728cb13ffd8f9bed11539cc4b3679f8f9dc6eea77c8ce0b6ba89. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/UK6821749754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20b9bd6848778b7d77e6b6b06aaa2befebf61d4bf4d1a8b0b8d2116de62993d9. 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/UK6821728488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedddb3681f7d30df009064d10b65111f0127c6918a104c10c44025a71b90c52c. 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/UK6821749602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf42565b5598219805a6d7d1d0410163b8e2d01387a3c54eb6cb82b15fb7ed198. 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/UK6821728636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf80414f7ee845fd1075616eef2a7edcc2af40a3ed949a454eb02544aea75b469. 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/UK6821749491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aee55cf7cd27fc3c453cd816f81fe6d5f616719bcf2fde9852ff8eb549723fa. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/UK6821749896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61e6df505f94531d503b812b5da00fc6012ede908b79feb718f7d10be0fd33a9. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/UK6821749600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa02c27d20be39f4697a5787c985515b22f3033a2414243190416ea0b130514a8. Chain 2 (Bitcoin): anchored in block 958828 (2026-07-20T05:21:06Z), 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/UK6821749713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf27660b311fb51b9aefadf814cf1768fabe2f9969b2a7707dbe8d531a1ca99e7. Chain 2 (Bitcoin): anchored in block 958417 (2026-07-17T12:56:50Z), 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/UK6821749978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a003371aba93ca9586ef3badaa54ccddce86b995070d124fbfde32a5930ca2c. 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/UK6821745008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb0f507d75b6d9798c9a8697bbda9e3af74e09548151e7a677585e17fb808fc5. 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/UK6821749667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x064177c9c18cf7eb46c31a8ab3a4c59dd27cd70bdd63800e370868c851435f66. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/UK6821749585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36ff723ce35fff3f2f1d9d3224e33c6410f38462faa7d141ddedb1b3a7365c1b. 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/UK6821749581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca1c242d6489e2f8cf94aaaa2ff3052d37a165d85e1e1c66a63302126bb3ef0f. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T11:47:29Z), 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/UK6821749499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02768344ae2c053e3d22333e689ddb2068ebd954f7e0f71c958741f162debc6d. 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/UK6821749979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41400458a9328f2bc5bf2db00e2526bb60ea50e3fd17513cf41ed28e83a1e700. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/UK6821749816.
Melodías Chillout Calmantes | Relajación Completa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e78ba6dbb0d8ecfe593df8aa993061adac9bf3149a6e79b32c5936c0e9c3fff. Chain 2 (Bitcoin): anchored in block 957246 (2026-07-09T01:49:50Z), 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/UK6821749817.