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 0x8db165e2492c5702901357b976075ac3e86d942c6e1f1fc7a02fd8cd8345e0fb. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4468aa12-c569-47b7-b0d0-205c4ed5ebb6.json and https://artists.proofprofile.net/proofs/artist/4468aa12-c569-47b7-b0d0-205c4ed5ebb6.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 0xde62d425efdd5b68f4ee6843663bb46ae73e4af20709ef0093bc21880e97848d. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:52:23Z), 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/QZNWT2015395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf15081db6a84afc72d1890e25a50321465013e0c4b4075bfb718a92a63967274. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T01:57:29Z), 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/QZWFR2456347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6601259dec39d50d4d06984360e284a7ab4994ff39300668f8cb8539df8f9963. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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/QZHN52519410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda52e7002c89eb46720bb3a9e296793b0f0a3c98b14425aa920f36a1bf7d07c3. 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/QZWFV2582428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8e675942ecfd6bfd22b33088759a3b2d2a6e52d88006e46e8e574faa4d64a14. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/UST8K1654610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x253687804ed4497732e9cab3aaa1535f797b6afc0d3eb14a195f4d0bb9f9558e. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/QZES62137056.
Haykırış a.k.a Lanet Olasılık Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0325e9b2ee8cea74fa34e9e054e302a5299511b677fb83f536ad0834f42846f8. 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/QZTPX2482965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37fb492dcfaa21596222902ee9d8d857143a2e7719c5ac5422d074ee22813856. 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/QZTPX2482981.
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 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 0x46f3698571ebd5b558c30d45b3962fef21d272d8da3810c2f59626cd1a54aa05. 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/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 0x52e5365362c97d7acf09b7756f2119dcd973a6123d5bb0968bbe69a48a5c48d5. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/TR0012100350.
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 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 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.