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 0x875caad6fef68d037416c9dc5b64d4aa12ba11d63b27b7cfb73b5c6e243c7e15. 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/98cb2c2c-c28b-476c-81ef-78e96ad1d886.json and https://artists.proofprofile.net/proofs/artist/98cb2c2c-c28b-476c-81ef-78e96ad1d886.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 0x81f788277fdb6e8c3d0411f6b372b1b36479c335dc68a9e4d3603de4d9c44dcc. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/TRAOI1700078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x808a5e879f0a8ee20a5380c3c20c80aeda8579bac6df8085300c266a62728dd5. 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/TRAOI1700075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ca9b008b758250fa49b2a1671a31a02c44a746a6d1df778af6ab5f9e3a29751. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:44:54Z), 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/TRAOI1700067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa35ab3c5fb529ebada6bb1f6cf0da3a2b8f8f033df29d6b36db41235d7b114f9. 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/TRAOI1700074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba3a7a589969c7eaaa8aa4cd7c3b0690aee5cb86d2e24d632421977537a2a53b. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/USA2P2143392.
Katip Arzuhalim (Kul Olayım Kalem Tutan Ellere)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75f0bb9c1844f455ecea47a4496ceb7405a23447f0e79a5f86be9036756889aa. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/USA2P2161745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ab921026d6e9959975f1accc9628e7f913b8099501aa26b9c542457f1690769. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USA2P2303410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61449c478ad669a451d94cc9c0535013764aa255f49efc8aabe9d9ced8a603b9. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T22:04:20Z), 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/USA2P2303407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb06912df695224bb949b5c5e9331b4b79327edef77d3796de76829845a1beb1. 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/USA2P2303408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb66f71e1eb4f0f7980a0841d04d368e01654ab46f8c14a55b296418b8b14169. Chain 2 (Bitcoin): anchored in block 958654 (2026-07-19T03:55:30Z), 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/USA2P2303409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41233ef9d374aed3690a808a9f24f865ff0586f7ca64ccf08bebf3c52ce5df75. 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/USA2P2321610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83d37451073bd95f1b3971d8f3fd541da772d82171693e97d1572014bdafa6ac. 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/DGA052489991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95d7ef05bdce9e8b6ab4e43ff62784f48365d8fb30f6cecb448018155fa1bd5a. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/USA2P2466070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc746262a6238c89a4c4a2457bdf9a9fefeccaf6689dadb75f617475013b0df4d. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:40:15Z), 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/USA2P2465292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x034e7e88d1df824d1e2f8fe04bb73a25cd45440ea967485109da582984b38f2b. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:31:27Z), 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/USA2P2477862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x997aa0e4b08278134f369c058cecff72fc737665633ba35ffaf20ec1dd14e01c. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/USA2P2522944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04e4e7fd89e4f27b919966bb0bb9e2a0d9fbcf6444a33bf55435f2eb57493b94. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:21:00Z), 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/USA2P2530589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13d6f54a1b7c83ff3866bd530329a36c968739904dc57cc1f7d35a372032447d. 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/USA2P2554416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e30d7757e3edfab510ce4a9107fea8b84b3bd33f91055b223f48fd39974c975. 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/FRX762472043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c943cc821e7885acaaa373ca9f00aeadf02d4e1657e400bd4a9bb74000ecf29. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/TRAOI1700037.
Ekberi Türküleri (Gönül Dostları Dilinden)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4676b0ed98fb46a82f123a13f964df4769a8b3a72c7e1f538676321486abfe7c. 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/TR2341900313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa725fe18f30b24b2652c91338309b075861ee7aea10cd6ae08a105a1d05e8ac5. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TR2061801257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9a91577c56a1c0e6d9f660df0c84ef50708bdfbaefd8efd5c4e6e67846334bd. 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/TRAOI1500046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5302607830f220e632c244de586425a5e91992982534b08459c5ba46d86a430d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USA2P2145003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc964bd276587d0362cd21883c344b94a041cec88e256703f1d168b6768e8df8c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USA2P2144481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d9b34246350987159a0fbf31ba920e56929cbb0c3981fe9886a4dfaafa3490c. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/TRAOI2300102.
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