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 0xb8d55779f51cb6e22a9a41c54e0da5a4036242b305ffe4b48cf74eaf9a1be52f. 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/a82cc45d-3d0b-4a04-a6b7-ee2ea8e68eee.json and https://artists.proofprofile.net/proofs/artist/a82cc45d-3d0b-4a04-a6b7-ee2ea8e68eee.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 0x901b7af6edd2fcfa0d0db2713eeb1bb7677f3aa545ca9a502d2f74794e429b74. 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/TR0170500629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2919ff1208568fdde8085fdde2db9f847141ccdd9ed00ac1a51c8bbff6d0126. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T02:17:57Z), 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/TR0170500631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19bbb64f51df19efc6373c81451c3f6403d2d3b2bf4f8f0591e6f338e91531ae. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/TR0170500651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe99e4af8b6e4229b074095a37d6903091684c2ba998f6b9f44836a5d07acfcad. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/TR0150501037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5196c21f317e1019f04ac539de67bd41ff9e441bbedb049e2a458c4978bcd938. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/TR0150501030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21a9ca8c809f0c6c1b4f8273c3060bd63f21854509c14d2a721d0a7bfdac2a8b. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TR0150800094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b4abeef02b485e2a5e5870ec5ae968372d61541ec82e72195ef066d82381b82. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/TR0151000185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb910639aa35fc65538dc3a27a0c7fffbdadfecd878fe85a33a2166d718b53d8b. 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/TR0151000192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3c177f99800b9b4d82f4db71a78756f23e08f2af91f406016cdc6c5e89d6005. Chain 2 (Bitcoin): anchored in block 957573 (2026-07-11T13:43:13Z), 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/TR0151000193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a1563b8362f6c50628ad32779b483d6bec5bed6363ee7d19aed8947e882963d. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/TR0151000195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa383e2b35d46c86ac7a17a888c0ee70cc9054cb02420318dee027b2a24448bdb. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/TR0331409749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbf9a6702a42fd8ad11f7a39bf2aefdd07907d68e410bbf744e7bb283905a1b7. 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/TR0331409743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4695fa503db68755be5630ba3dafdd16c7d4f9c4d680c6d4ebad7d8d48e3b307. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/TR0331911717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa70088d9e155a1826b9d864c3e37b79781de4357b382b5cdc309d39cff68794a. 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/TR0331911727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x822381f25da9dd944ad033e3334788656f8f98bead0e01633b256ba4101e7e80. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/FRX872133380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x734ee2cfb42c767b9c22e49595d7c56388ed0225476e6962395bcc36f0f47915. 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/TR0332212759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7466431d777017c37e6314f18229f412d380dd4024f13819b45259230679dc61. 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/TR0332212755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3fc9ef988b6a71b55b1c981bfb2543b783e1712e7c11688197cb47f89ac35c0. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/TR0332212758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x708c1ed919bddbc36a7518e58f7367543397fedb7e0ed75a5ce8ad07accb5730. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TR0332212761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97b84274c8710e0454c97953708a28715c3e9fc5135c2914296c8becff3bab25. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/TR0332212762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2ba3923366f9bec2fb36311b616bafe22d802bd5ed1ab11bcbd53794c0975c6. 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/TR0332212757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bb8dd3cb3f0180628b845e2f8fdb331f20201616e0fd71d56f491fe654abb2e. 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/TR0332212760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bdaed557268afe422a6b34af9bb0a91efbf01cdaf7770aa220b8d1cb5d23456. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/TR0332212756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeac19e37c9581445b20ae34cdc989e09a8b7d420e60b684f06b53b3daf7f825f. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/TR0332212763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc51aa8e0e3bce638e2397b5f6e65c54dae1ce6c9e7572897b5d6889ea8e2d46. 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/TR0332212764.
Sıra Gecesi Türküleri (Bahçeye Gel Ki Görem)
Felek Bizi Attı Gurbet Ellere (Feyzullah Çınar Eserleri 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d9c3bcc3afce1c86158b567924d5c10294854bfefc1c8d0b7d8d73615a225c1. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TR0332400172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5f8df1ff7af7767f641a97a60c311173fcd2ef48b2e12a3812af26c678acddd. 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/TRBBC1800137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf9abf47329db42df57d3ec6397aea0b0e98a194204b53cb742efbd9c3eb7422. 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/TR0371800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa256cafbbd13dd940ca04c7cfef9fd58344b2456b861d7bdd3e6f75ae4c5d2ae. 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/TR0291606090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4ed9384ef88f2a829fe041e785f0e47149282c4e789af0043d248bd18237770. 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/TR9932200557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb4005fabee3bec16dbeeffffce8fcfc6bf8516fcb5fb036bbbed5aaa401e570. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/TR0332212821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f9511127ef335744049107cae92cdbb48ece8ef83951decb2137bf6450813cf. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/TRAOI1900039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5103cd02b776802cb80088620ac34e0f5dd1c7b3ab0ba52e67fe5df1d93c783a. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/TRAOI1500056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x149078f935d51454a80acadb7012b2304b1ad17d99d3475396eefbccbc73a774. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TR0330603766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabd75aac6a9b93a4b1e297100930c32562cb0805fdf7cafa2be4fc6e129e592f. 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/TR0330603808.