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 0x9c953c11b7f3aba62b3d87a64b19151739b8abad3c7feef44c622500bbed6db7. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/73b9aecd-34c3-4ef8-a4d4-48aa02b1d3a9.json and https://artists.proofprofile.net/proofs/artist/73b9aecd-34c3-4ef8-a4d4-48aa02b1d3a9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Haykırış a.k.a Lanet Olasılık Collection
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 0x0325e9b2ee8cea74fa34e9e054e302a5299511b677fb83f536ad0834f42846f8. 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/QZTPX2482965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37fb492dcfaa21596222902ee9d8d857143a2e7719c5ac5422d074ee22813856. 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/QZTPX2482981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a30c028f121a004efce75dda377f0a93e639a0cd7ca1fb0bc5c81c29e1d4420. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QZTPX2482984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3130b4de5c7d3c2d7db90d7095c0d2bf57d7e02e2c6bf72aad426d285344907. 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/QZTPX2482985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x759bdafa9e9ab8e7a805c4a4c1ddf5756bb6106f86aedd18ef31d17884897bd0. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QZTPX2482989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84a4ea526e2ffedab274de8e6c182c390af85f20312a9a1320a4e5d20fbe76b5. 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/QZW9K2479527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45d45f804d14cf4b8a474e9b7fcd5378f6471a99a7d44f22fbf5708da5cb3e54. 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/QZTPX2482974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46f3698571ebd5b558c30d45b3962fef21d272d8da3810c2f59626cd1a54aa05. 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/QZTPX2482996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4f9685dbdbf79bfcf1c87467f2d6d34732cd1bd5a4b9c8a20094c6bab928a1c. 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/QZTPX2482969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d6f42f1dc14ff70ac37f9bc0bf5a5efb716328634b62d78ac3907791af9d5ad. 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/QZTPX2483027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb58127c917445a7b9f2b9b462df60fe48952b09620a10fd3791a74554db61414. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QZTPX2483012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x722583c9c02dacf4cad4087fc4ca55149271a485db81ddd563dbde9df739ee23. 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/QZW9K2479533.