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 0x67dfda561dd51a6002fa9ebc72f4f8fecab059005ea95f6a8a3e82612fbd70d2. 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/56f402bc-717d-4e91-b2f7-96793fab3ba7.json and https://artists.proofprofile.net/proofs/artist/56f402bc-717d-4e91-b2f7-96793fab3ba7.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 0x5177da7cec40d9549df1f70a8d2249698a8fc052e5b47074b48b6b4535a3fc9f. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/TR0751400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e51d6db02227e88bac6ccafde76ff1a0baabc6f45de0191e4081a22761e33e. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/TR0751400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5177da7cec40d9549df1f70a8d2249698a8fc052e5b47074b48b6b4535a3fc9f. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/TR0751400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e51d6db02227e88bac6ccafde76ff1a0baabc6f45de0191e4081a22761e33e. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:49:16Z), 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/TR0751400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24a667b873ad0ff7794e38873137fa7a9a1f9516410f8ea301f1565f6b0a2931. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TR0391600317.
Gençlik Başımda Duman (Gençlik Başımda Duman Orijinal Dizi Müzikleri)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61f731ad7c59e1e3330b7b9c9733c13588a4601fdd4fb7dac1c471ce204ff495. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T11:00:31Z), 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/TR0391800069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x091ee8e5069e87aa63c23ca1c4cce7d89d9e7d74ba3c0800ffaa346eb1d369cf. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/TR0391900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1964b944b8799f32060a39a2ac64ebcb44b7b75bdc4f525b1feb19d9603fa9f3. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/TR0391900081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1964b944b8799f32060a39a2ac64ebcb44b7b75bdc4f525b1feb19d9603fa9f3. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:21:25Z), 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/TR0391900081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd301706186e3173269c0aa12b449a94c3f0904533c818fc6835f13737d42ca8d. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:27:00Z), 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/TR0391900084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4358b5ca47d74a18d26e65dd73c69a3d2a78bb2d47073fb66588f3ccbcca9bb5. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T23:46:42Z), 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/TR0392200041.
Mesut Ol Sen (Fecri Ebcioğlu 100 Yıllık Şarkılar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8de95e02e4067ae39e55a5005d720ea459725dc3771ff345071638603586802f. 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/TR0242300029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa474d8e1f789660f69848814f74a4dc9beb4b1f2d008273cd11c8c411400c5dd. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T14:09:07Z), 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/QZW9L2341063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67652d800c4fa4b9b2fba8461f205c39bd27ac394053b207a7b9fcf112bec492. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:05:17Z), 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/TR0391700272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67652d800c4fa4b9b2fba8461f205c39bd27ac394053b207a7b9fcf112bec492. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/TR0391700272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff0b3635273830a631c5266ddf68d81fe843bfe72ef3a409fcbcc609d7626b2d. 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/QZTVM2418184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdee80ac22c54aa5c07ad3763493161b6bab0e7aaaf633f0f074278fc1fafae82. 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/TR0362000096.
Ahmet Selçuk İlkan Unutulmayan Şarkılar, Vol. 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45df36bc507bed95e603d68eb2130b3dc6c9a38683bad95c20428e4dab3ebb73. 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/TR0391800082.