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 0x6189364117d3ff49200cc575f115949c161ca548c2c8b331b12a34475020f1e3. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4fe8eddc-d952-4911-a573-9d087747e1e3.json and https://artists.proofprofile.net/proofs/artist/4fe8eddc-d952-4911-a573-9d087747e1e3.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 0x13d3cfc93e3b68665d86487dfe79e88480a1865c55c7f9c957bc5693afb81076. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USDY42330484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea41aa83746e617f3ac9076f7605ed0d22df8d4cbd59fd6c94d3aa66883fc286. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/USDY42330468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf40e9898d7e6e980a82ef8ef1cd4f9e466e3d793ed33e5b2994658df83cca79. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/USX9P2092571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2410d65eb10cd2aaf1faf0ad531a23c4250ac68713b5314b41081cd5f4f3271c. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/USX9P2092572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x326013cccc9c52238c258a2dacea29099da188593a91c65846789c14f08dc132. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USX9P2092573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07dfa8bf6cbe0ac5af283608a3391b03daf6c0c301bc216fd52d21ed514fe38c. 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/USX9P2092574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94ff41d99bbbef921582e1d5b484281989b7f43cc2eb118dffff446519bbfb45. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USX9P2092576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe237cc26ac3c875e2b708aefe47097e5fc4ffa4d224da4cc039a0cb9fabcfc96. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USX9P2092578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf28242c5cd6262d43980261693e281d1e5a7bd1f963972daf59c7ceebf627379. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/USHM82408905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb19a398cde099116eefb81bff2baa9e546818f37c60c68b897955aeb255be1e0. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USHM82408906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceb539967d7e8a352fd7e4934f2431e29e02cab2bf1dc0a59694f13b455325ae. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USHM82408907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2fa4437db4c83390ecb3a711df85770967cccf7c58c42c5ebb976e15088cac6. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/USHM82408908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdded9f383f3357d07099fa6ab8ad4dc2ca7369dc7317589a32f1923403bad43. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QT3TB2423893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ffb70580f5a202c6c09940097e2b8f23f39241f4b2bc3364abb5abcd0b4e6e7. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BK4BU2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb1f372778fd4f5dc3daf5a66bf6f583a03884d659e5d98db07163945f72a9c7. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/USHM92437310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb93dda6b410368bc10e2ffeac22bffdbe8377a12303cb23361dc8807c686a24c. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/USL4Q2029310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc351b9c236fd8240f54fe1892a932da602067ce0fd8fd58760ef4f400c30f008. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USL4Q2029311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97ec83a32af9156549d5954bdb02692e96c871a5f962cea4c4e298803b9d60db. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/USL4Q2029312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3f8f4650c02147b9fd460fb3f9e431001514b37451316190b7e8208265a9b8f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USL4Q2029313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8044abb0eaa66c9ab63cf9e6e944b20f47d02d3dc82ecbb139dee0fffa00ba8. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/USL4Q2029314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95a6518cfa1fab4bb90478ac6ab3b9fbec7b9124533b5c1667cfd4c652d11b16. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USL4Q2029315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cf1be2d9b57e0a674b64911fb4f86c72d3581d5803dad6cebe301fb38fba5be. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/USL4Q2029316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0606e9907d3e2080a68f70cef0dee47cad49f524cec92b9b4d20054b7fc92e00. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/USL4Q2029317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbebe467df000b243e8cc7ca59dbfde52baf4a4e79d2c8287604da4d1db48d92d. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/USL4Q2029318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8365b27e58385812aa1e9520218bea8bb52f401c08c41a5992b18a234ecca732. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/USL4Q2029319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f822682036e8475d6cf1b38a36f57cb5a89533b5eba65198ed198ed2efe9df9. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/USL4Q2029320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87593b13da867726d76bc0ab3a62f083c7fa85b909aa6c4a43559f29329d4b42. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USL4Q2029321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e10652d28a808bc9e5d9d19d7d99d97977e747860f3fb8cca02153087ada28c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/AR01R2100136.
Colour Your Life Riddim - Guimsinho Musica Riddim Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d5c2a78984e857d11fbf99b154bb4260ff809152a6020e714ae219c421ac86. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/CH6542084294.