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 0xb8e84aa5a9c93480526d02dae20888790e23c1b46a7ec502878fbcc6ff57e2e3. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/64c56091-7336-48e5-aaed-e18be2004cb9.json and https://artists.proofprofile.net/proofs/artist/64c56091-7336-48e5-aaed-e18be2004cb9.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 0x2f2187038596a850d6570428d5174ef7b3c3dec7fa78bf9ddfc1fda9a2e6d4cb. 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/TRBDY1914301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73bfa7dcf6aa949eeb51a7186a909c6a3f82d43329cb2bc1b9af3990e9111c04. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TRBDY1914303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46b4687aae00030fc24652a00ece486d41f954bf1f4e727005208aa7ef8a3e78. 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/TRBDY1914304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb930c7cb8cbc46a99fcda3e119b439928ba408eada22dc76f99684d217c02c1c. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/TRBDY2020301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f6bc2979d00325d96e18a46c3fe36ccadd1d8ea69c680f5d8e99053864d1c8a. 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/TR0012200399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4580c84c093d6115d3faa10eb76c90aecd285c3a284b9f8368d2b16e17cab88. Chain 2 (Bitcoin): anchored in block 958143 (2026-07-15T10:15:04Z), 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/DGA052257960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3beebb0dcfcbecc8a093bf68e28af0a7e648748320422d127725c3af9254721d. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/DGA052257961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4280b6a7256059f0d66db6eb163b16aa23e8fe1b19b90cf835777c4b67079466. 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/DGA052257964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd3c9eff506d12ddad71b8b7454ae47dedef8bb626fd25e4d89d3fcf44c5ce47. 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/QM4TW2447296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x044f8e974d311fe79a63bdab760afd10e46b96a0e1920e89a6ac34a72e739b3c. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:38:54Z), 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/TR0532415952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f92eb09ee7ba4b8221fb64b4d39f539b50933b94210b5013d2370784a485433. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:32:33Z), 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/QMDA72421861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f3b90a7efb9536d1a121d7fe02cff1c389a9fc59fae791d44a233e6aef48612. 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/TR0012400199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa89f3197b362f1bb3c8ecb3ea44da831da9b4e0c0fa4a3a28a1d43f1021ce346. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZWFT2578100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6d090cad515e07d2819280674c185c424221fceaeb900a663a282828a8efcbf. 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/QZZ782501722.
Hastane Önünde İncir Ağacı - Doğa İçin Çal 13
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67f4ffced9105d19001985c3f6bc65e1e0d540b0000db59e88248abe5b9d929b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USDY42374663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a14ad24a78a3f64687844b6a74dce65c305e1da72e320817697e6de7c66a69e. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DGA092219108.