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 0x86e9593c9168f11a1df4b12c563e1d2960a7777ba99f743cb74a721692da8ce2. 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/fa0e0ac4-8475-4f1b-b7ee-b43c202b82fd.json and https://artists.proofprofile.net/proofs/artist/fa0e0ac4-8475-4f1b-b7ee-b43c202b82fd.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 0xfeaf457498ad15f4a819a939d369a4cfde03df0751775549018f8cc053587adb. 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/TR0280603213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35a32031e2a6489627e27725545e580914fbe3c38351f4a09bbd9ce0289db85b. 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/TR0280603215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef33c00432bfcef6933d5372282e7ce21252179b7b54097723e99ec8426b0ecf. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/TR0280603217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa60849a23c4cf1e4fe9d886e0ec3dfe8b688bbb2d91361ce373c611d7c673b2d. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/TR0280603218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x367b8a2b22c18ff7d95b3e146f32736831ec9f98c4860e8f97eb0ce8f29073dd. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TR0280603224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x671608e4826dd3a8390487fcdf17986365eb6b58609b1d1327097c990acf3c3e. Chain 2 (Bitcoin): anchored in block 958590 (2026-07-18T17:28:56Z), 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/TR0280600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd38c43de7944e78524180d66c3288d36d6b5655fa4d86d4e5929139d3a4ec468. 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/TR0280600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf85d79fc91539a6db058a7790ba146dbb9ea30fc98f2bb254dee3e96b67b2887. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/TR0280600009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89a88ac216f661a7bfa5b8de693bb54bc6dda1071c3f39426c8d2d9d22923bbb. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/TR0280600393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5cb5fe6271c34cbe9ffef2293dbe6cac80addd126293b4bba73f3309a3dcbf9. 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/TR0280600391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc3fa31b22cebe26d948e29f5dbb44f3a205d7193ef53eaddd4001c927c6c982. 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/TR0280600395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15166600e1d246b58c7fca29558ec1ecaa863affe0c9961e105a4175685df39a. 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/TR0280601741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c9a9a5e514a93c9c9d5954b762547a069be5a4f154645fffc67a4e1ca759c60. 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/TR0150500876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21580bbe33e2ce02b61acdae534e4fe7291d57dbe76b20359b756393be806b97. 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/TR0150500868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4137a9793e47f1776d967f7c87306a2e501d4a88013cf5ffcb805818ab93913b. 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/TR0151100080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce8feba2f7b9b2f1b0b9b5dd58ea39301b3d6139145583a2f58a7bed153779c5. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/TR0151100078.
Davul Zurna İle Yörelerimiz (Enstrümantal)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cef68c978be7fbb2a410ffd7a5f9576cfe9ecea47371a6e7e9013f6a32647a9. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/TR5101900033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51d60830cd82908378322e813d3ab2ac537d722434af2e629940e521ea2cf256. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/TR5101900040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe283a794733a0922781d0e2a237cdd86d531de765f42e4794e9c622ffac6db04. 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/TRAEJ1600101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6a9326ac7de86e01af6a58aa3ebb12edced47ad0269ba5d8e563eebad9b3d52. 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/TR1591201678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1db3779e65cf666cc7c53c7544bd84d8710f96aa93657b52b06267d4041f7a3d. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/TRARD2000068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51be57173ad4842b06a6af5b70c1f302aa33a35bbf8b3ec5b21767223a75abd8. 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/TR0330603799.