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 0xd8fac70e240e9eb8a548caa3b02b0526f1a4480828f122e5bac14d54d0509315. 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/e840b018-5372-4c74-bda5-87e0a3f5bfc7.json and https://artists.proofprofile.net/proofs/artist/e840b018-5372-4c74-bda5-87e0a3f5bfc7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
El Ele Çocuklar / Eğlenceli Çocuk Şarkıları
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 0x24e512bf313d6ddcded9e787a4a583907d3306dad3c6151da1b6d481128fbbd9. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/NLGM11806204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe42373d8c85cfcab74e06951391b7b65b81265eca14c0208e1df0f684f0e8349. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:28:14Z), 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/NLGM11972792.
Bebekler için Dinlendirici Doğa Sesleri (Doğa sesleri)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27aaaca303e753468a96f2cd69de2a376eb240938b6287e59058de687842d06a. 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/NLGM11946910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e4d7ad64199104e79619ff079fbf98f19436e85295792c6c39d8318618507d8. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/NLGM11946916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8308c501fdf33755cac9f5d23ff7973fa70c1160a5b2f1009280c0de57a7c984. 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/NLGM12025743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a941b13847552c48f99c659adadf865fe24745b5e286c0f6007e52aa379e1b7. 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/NLGM12025744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6c4882dec2164f87d676f25abdf87286b09638b056443f37d02f5d53534cc0d. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/NLGM12025746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb652df88cba8e80d5f3a2810061463004ba0efc68970293076d3d19d4049490. 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/NLGM12025747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15c3dba84f726ee28785a634df3d9977888cec3b4b7e4fee4faae9867cec5476. 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/NLGM12025748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0221c3fd7f711de50f0026c8da1e7a00f8f2a0d5857359f86d8ea30fed8b9f50. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/NLGM12025749.
Çocuklar için Oyun Zamanı Şarkıları (Piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b49c2f6088f8855f69cec56ccf3891b8e632d15eaab30f537aa84ea03500ccf. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/NLGM12127000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x206e2dff97cf3bc98939332324b5f68f1ef9a2564a6975e261b5286bb52fd24b. 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/NLGM12205496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9367e7e7341c5eae66139fe1a46f3033e8e9ee2a52ac8973c4c7ba4edea6b17. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/NLGM12344149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6392d3892e83695fb37e319589b6d538a342c32f6d78237edcad3a98ed73001a. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/NLGM12344150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e925a16c7dc1f21674bdb15a7eb3c08b613d18be326130f350044bf530edf52. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/NLGM12344151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffec7fea6dabd85e7e6f5939a385945aa5bd41cb8f06bbbdd454b28e48b4ab6f. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/NLGM12344152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x374b46c1170bc966713578849de41ef6fc1fdc379c9f112348b481baa878d436. 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/NLGM12344153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf83df352dfeb02860debef87e9f27459102915180728280576fddb41b2ee47a7. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/NLGM12344154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09a0e31dfeb62176af00e1984a4954aa85d005b6fda4df0985af2cd50b1eb10c. 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/NLGM12344155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0991e7d4c0233956252ede404c878bebbceea6e4efaa4014b98dc722daf4a648. 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/NLGM12344156.