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 0x57046363f46fee54d1b06403524d4381a4d071258e9f69c0e8b68f9d880abaf5. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/094f5394-97fd-4ae7-b0c1-371cab49ca76.json and https://artists.proofprofile.net/proofs/artist/094f5394-97fd-4ae7-b0c1-371cab49ca76.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 0x0ba678d300c764d45d97a89fc8af6ffc8fc25f44684941a918b225f5f51b9797. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/TR2502402489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40cf152b53548475bf54d69307c4446fda3f4ff512b709b39c834f36983e71a0. 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/TR2502402490.
Mehter Marşları - Band of Ottoman Military
Mehter (Enstrumental / Band of Ottoman Military)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ba7170147230d29becc451e339379307c53b50064b030c205f30278721ba4ef. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:30:54Z), 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/TR5980800016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9736bbef650e960d9d53df3be4c4f2067923592d95f511d7bfabf4a3118356dc. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/TR5980800024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefee2779528ab82def4ef77798eddf531b67979d58a0014a4ea1b2de2e2064e7. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/TR5980800026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f46032906152d85c5c6a57647598a6c249f39949598f5bb0554de863215ecb3. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:59:01Z), 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/TR0801501638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f96131d8f86cde5ac73b93fe2da3fefa6722515f67f7933e34d48df55fff38c. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/TR0801501641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95058e9c6fcf02ae982c97505eafc9145cb6d751618b5c8c7c0bc86ce3243314. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/TR0801501643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11f7ecf4bfc2e5fc500f607e3d153d0c7c304ebfd825a41acdf3493ac25c3155. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/TR0801501646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86cf29a3dd29eb1496bfec234c8bb41d3d7752adc16b9a231cc48ab65de1a790. 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/TR0801501647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0068e2f3c44910018fc09310c883bc33910b2b28484e9f90dbc6c3d064f69d76. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/TR0801501650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x132c79595d09f6abe171a689b3f0ee2dcd133cebfaff02443e7ead97c5e2027a. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/TR0801501655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7368c53b036bb0b4ef34a100268091d093c6c235898d5586d4b79f75442b6f48. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/TR0801501657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcd9e067cd9e8799be9043c457ff96ba52d6e5d4d23fe873be9bf9ee865c37be. 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/TR0801501659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c2d4b060dffbfe64870548cc9a8b8c0e578ad7adcfa3e61e531ed2154a68212. 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/TR0801501660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe73add3e2e3931dbf7555ee324a679c5f6dc24df5756c44a35ead943c06d029e. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/TR0801501615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe369180c2b8904a293e5d79b9ca89924716b47198c4d1afe5350315420685b54. 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/TR0801501617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf617344e1d4dfe15de6523a6492134d9a04ee41fe9d76601a3fc796810b55c07. 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/TR0801501618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdca7e9d5af12069327db6150f54154973cca205d111e915aabce81d8d8582b81. 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/TR0801501619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5738cbc34def883fbe1a5d0fb99c5898478b770b4ea67211f7b25b0a67df1018. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/TR0801501620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd125458be47f1215ae2ce316942818218e9429c2b3070464c1c228f049ca4d63. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/TR0801501621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33e701ce005dbb7a96ef89e993a3c777eab152cc1e52fada71378d5dd1db3992. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/TR0801501622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29a712ee0dfb52fecc061d817d427275bbee04effa6ef3d3437e9ce81b151c65. 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/TR0801501626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f5667a25480f8cbd151f7608bdb1a973b84f5f51156fee9af3baff64b8cb923. Chain 2 (Bitcoin): anchored in block 956748 (2026-07-05T05:55:59Z), 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/TR0801501627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7ac6d9b51149936cd9e362ac8f225470f649b402275241e94ce067d08cc95b1. 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/TR0801501633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cc27a84810a9db729b993d273979d247e3b9e537ec0a9fb5686708fdb19e669. 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/TR0801501634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95b82a49bf1d0da36fb36d74ff8f6b63984735c6d517c6a3d9e6c28f94ab3185. 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/TR0801501635.