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 0xd32d0d5421c5070765f5507d0e2d6535e43e63db73977d3ea2dcd4456eca6eba. 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/8097ee7d-e48b-4faf-8413-d9e261520875.json and https://artists.proofprofile.net/proofs/artist/8097ee7d-e48b-4faf-8413-d9e261520875.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e9d8e9202aae2eae5e1f44221637157b27bae10bfd58b1bfbfbf3dab502e8f3. 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/FRX281702955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3438eb5b367ebd7a4f7ba9778ea228722ea193d70ed52c4384eeee36de2ae0c0. 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/FRX281702956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83901b9b39114d7d7e16385c57ba1fbb0f8be6a4b03d65a63aa5d1487376650b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FRX281702959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e8b18ec3e73bbc64a1b232b608581743594f5e0fd61a0aa83a4542f94bcb38c. 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/FRX281702963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x353dff3c08cf04a93a3a1e0fd95af149ebbcc0e9dab0e01ce0dc6f941023ad69. 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/FRX281702967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x965b9e5fbcba1b8c84cc30b13d62cfdd6168218214ef51e5f5f0f88683775744. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/FR2X41836121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc030536d44d1ae24b0b62b8e2aac28637aa634c82dc23a14627cc942e4fe97c6. 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/FR2X41836118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d1c21225f7f61def29ee0f8438f1c5cbba70ff63caf7d0a0f14d3718a528ccc. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/FR2X41836124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e42c728f92a299a44f86bd5c70970fff62772a9aa4c46f8683caf2a6801ad1d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FR96X1931844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6761e166cc7111fe22fb34327f80fe0f0dd64849116d279895e4a55b27e1b95. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:03:07Z), 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/RUA1D2064580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x366d14e643695fb2606015c3710916a28839e67adef167a0652baaca09c5e58d. 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/RUA1D2108235.
Love of Yesterday [Extended Maxi Single]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x081d823e4142faa93b3f00d3c5f17a81f85dd1640ea628eb82543ff62bf824a5. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/RUA1D2155364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd739c0075c955da57b59421b571615c914724796128fe3c6044757b9ba9f30c5. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/RUA1D2349708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe03c80242e32962fddf9f4ca0a127d372fbf98930d2507c3be8c9023e4f813b5. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/RUA1D2542351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6322af051f845fac71bfc8f9ee43ab76886e33ee4d8140759f983739b91aaca. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/RUA1D2421894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x144f246ba3da22f820645d29ca9809c951ee4f8d39d80a50db2ec40b506189eb. 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/RUAGT2337060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fb22f61a14104ac6b6b4074399727949b80ccabd7b2c86369afa2e6932e9f91. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:25:01Z), 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/RUA1D2542352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35a2d88adfe9ef003bc8a7e17d74a84f0d6d08c43233f0f82088412d40272708. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/RUA1D2542353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x003e5090a1f5a6e1c05c2f4261d3e9a4dd591267056b70069d024dcde895395b. 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/RUA1D2542354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c99bc3c81bf1a01e6215bb15b7165ec58090e0d0abbaa000596343dd80fb967. 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/RUA1D2542355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ce4c6615faa6ab4ccf150fd7602f185b428531edcc56663ca749e15aa981623. 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/RUA1D2542356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x094a76371b6f19191aa65f97b4e8941caca0579070bf39afb38c60bd50619a1a. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-20T00:13:06Z), 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/RUA1D2542357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dfbd11c174b9ad32b6f6e8b04ff02049f3fce7484b0442bc1d64ad0a65d3c91. 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/RUA1D2542360.