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 0xbb925aafbf87e512ca0e7ca0cec154c6f6f678ed64463e84883b9618d5e0c68d. 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/5bbc8b48-090e-4355-8fde-49df97c8878f.json and https://artists.proofprofile.net/proofs/artist/5bbc8b48-090e-4355-8fde-49df97c8878f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
STUDIO LIVE EP.3 (CHRISTMAS SPECIAL) - Waltz for Christmas
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 0x7de44b49e16cf51e9fc53074ab1090a48fc78f1a84e8d2a3cdf6313b916b39ad. 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/KRA0R1900349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c433fc9872874df4beaeb765d7d366e0a6b7ae372ed27716d43409e64aa52ef. 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/KRE321800027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8d90f019bdfdadb62e42d749114dda306e046d08e750cb17b6e020afbe084e3. 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/KRA0R1900350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x752653694d666380514c1f8fd49173e96a5093e84fd58674603b6e85520c7642. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/KRA0R1900351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdbbbbe65777c9c049c5f40b5fb0f94dd1eae2566dec5f5539ad9abc107ec883. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/KRA0R1900352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2066d32f135305d65b65d3fcce37ae013346b10b9ae52ae86159216d742fb198. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/KRA0R1900353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x579176dcd4f6d37fde4277dd343766fb3663ddf9b4f7fec66d1fbebb8e9e2be9. 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/KRA0R1900354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0bf1e8d97512d19a126a55b010e7d67ab25ae7261d2455939561fd4bd500d23. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/KRA0R1900355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8353aabad9f0ab6c8a9e99ec75feb7323ea45230a9749de6d31163d773c80089. 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/KRA0R1900356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5355375492d63bfd3c0254030924188eabd8b4dfe890654d3ec1d32820b649cf. 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/KRA0R1900357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e0869a84b3751f9b28e5edc877c272ab290f47a04c929cabb3fac83abc5d077. 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/KRA0R1900358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd69600c17337a99ce080ba4186b5bcc51408f40d3d2c8b9c0d2f59f1b80947fe. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/KRA0R2100121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ae906a61e385187cae71ccf3bf8e4314f3b61993d5ffe329246d0856ae4353. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/KRA0R2100326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8526fbcc69c8bb84daab005ef4596659b1995212b5976472f6f789092bb7c5d8. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T08:17:14Z), 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/KRA0R2200467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d77b7fa47797b757f7567ad00469db335da23379471e5eff83a53bd7f4551ca. 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/KRA0R2200474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9d7f6eaeeb0c7972cc133eb8deec14558c886156f45dac39e04d3cf4c5c48df. 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/KRA0R2300835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba8792d2ef5db9d3d6ac12cfe90d3804abadff9bd2af1000eb00a4e63a3b24ca. 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/KRA0R2300836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda8b26c9fc1767bf9f89009aa74b18889490ab23a01a190517efb9288d519a0d. 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/KRA0R2300838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd6bab84b196faaa65e3eb188b29f46950c91d1bb4ac6ed09330356ed4b17d60. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/KRA0R2300840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6488bd9721b485355474f5914da320373201b6fc812085d4084a44fb8ae85550. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/KRA0R2300841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee737082a9479013a83d63cc52a942933df104447b831e69c28a74bf455ade84. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T04:55:29Z), 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/KRA0R2300844.