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 0x2a3af4784281bfd66878d4b75fb42c3b6f3a68e0c476ef5b407598d8261bb6af. 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/c0eb569b-b79a-421e-8f02-5fe6d8f43f91.json and https://artists.proofprofile.net/proofs/artist/c0eb569b-b79a-421e-8f02-5fe6d8f43f91.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Beste Beste Türkü Türkü Abdurrahim Karakoç
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 0x338124187fe8a867195839779f751ece1170abaa58d7f03618124e737415abf6. 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/TR4041300423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x486cdeef093a3e6f58b8d88027515c24f0374d6e590c5c42d4f98e99db942a88. 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/TR4041300424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0cf74bb6f6ddeb121cea64031121e76565f34a58538a883385251503b5132d3. 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/TR4041300425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaf69473f9399e8559be1393f5c88d5338c54050cd6792a8729ff28714d5fdc3. 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/TR4041300427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40b2e753dc013e90df331a8b291d4414bf785545a45218c657d79d70dc420e46. 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/TR4041300429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7766d6f1318c05ade1ee8e82792ec46ad71abe64fe16fd4488fc634a19fcf432. 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/TR4591002024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc01d28713ed7f68ba0de900cf03645ac0695f7dddf48fd8ca84fb76008059cd1. 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/TR4591002025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb390294a42f4e1447c9df71a43fe957e11aae6f5b7a69e68ce855043c0a33bd. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TR4591002022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff3dea94f814ac25c86f2f766bb4d0fce632e4078991efe3b5cc85b9eeaa8303. 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/TR4591002009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61ba5f63e91dc17df87cb303bfcfc471e49496821d0de7b10e987a84689005b9. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:37:32Z), 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/TR4731000069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e1db5690717f0733708f20f93b5e7b67d621b4b5b1f6869257baae202363430. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TR6791000022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10b3e30677ed1531e712d0066ee26d130b44cc6dcfc00fa723add8d59b14783c. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/TR6791000025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x671031d147e1222070852f80b835d13ffb1867758e8129683761650381185853. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TR6791000030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97a489ecee0966238d08c28d1f993a62b4fde61bec0e3dd18a3396fc9c150f21. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TR6791000023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x985f7e64eae96249b4796179e560dafcf0a7b9dc5448bed6de52f89c4034cfbf. 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/TR6791000032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d2ad56d34a9eec21fc107f1610522b3e595dcc638d986ebd901f719963b6b09. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TR6791000021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x798a4df5865e098273f7c70ca0f8d325f90ab5bc015da988268d3ba07a16cd0c. 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/TR6791000019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b8bc292d978ce672a43460aa052ee0ba054578ddee0bc01211be4e0c1c8d18a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TR3501000036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93e60b2b0d182da02071dcd42a13b9085b69ca73f251af612f74c5c6eda350eb. 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/TR3501000027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20a7e9cea605916bb034f80147f9e6d9a7103ae8be239b493a388c6acea8c8fd. 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/TR2181214804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2164a4edf2d2299850928c852368c15974b95434b56aa56d4490a43671c09c8. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/TR2181214806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda23e45813899f2c87ae3223ef139ee3d0b83315f1421c3125e1529203124690. 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/TR2181214807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98ec67d5f9072daaf134059448930cf1dfccd0e1e942bff1de3f66b0eb79f832. 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/TR2181214805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39eff26ec01ce63950115bdfd8501e3b165234722f9f54afa055f7c1fbeded92. 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/TR2181214802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63176d2bb43294a932abfa4156145e7dccc8bec70737365e3bfe0e3399cfb14a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TR0050540168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c665ad68ef8a4aca10c436e8da3761a349e39fe17322a46c37a3f84dad9d95f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TR0420900529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7d21f29365b0ff040b28024fa3e05c54a28c6e110e267568041a1677fc993c6. 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/TR0420900532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0146b6bb8dc8c757ef5b1cb0f4cda118ce61ec2e33ff3d80963aca41c0f21f85. 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/TR0420900533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3e6ca07659a69d81afe564a6ea18a41e37ded3af2c83587e88f52790d45e4cd. 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/TR0420900530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca02ff54b934d846daaa74f5deb0272af37c5a4f185addc6a4aac8922f93bdb5. 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/TR0420900534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8f2a8194eed7b0976fe73836e613f1b46fd3d56e279acdedac48740ee2f183b. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/TR0420900525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa46fcbae4db55c09efdc1c330cfffcdb05f3f445d0943590e0712270950a79b8. 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/TR0420900526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fd6e0ac965a0d5e0a2ce4a86d38392b00997999f1691921f4dd60366ec60d34. 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/TR0420900538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba8194a1d17962788d327c8f15d103843cd91a0468b9151d006fc3c9c67bc4ba. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TR0421600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd475168bbb8d6cf54284d293e524fe1a3d9377dbe7ddb1ef2b88b2b5a7b114a1. 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/FR2X41453893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f6e51588af505d91489a80bd4b278728ac4feaf95cacbdf34dbca346f96ad86. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR2X41453894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fd0d99e36415707d74432191cbfde3eed8bf232ea8f237228b8fadb653cbedc. 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/TR0460600033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f3805ad5beedff1250d4ffbd437e35e4769401affb5721098b3a06e4e5fdad. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T18:03:16Z), 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/TR0460600041.