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 0x55a7ae487d2b23b51f6ddde45dd9334c9807279825a1c76b18960bbb4f4f89bd. 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/e31d3639-8944-4a45-b458-17c53c0be554.json and https://artists.proofprofile.net/proofs/artist/e31d3639-8944-4a45-b458-17c53c0be554.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 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 0xc15759fd20933658bff6d308ffa9d852df6579647f2848fe0a213cfc8f6763d7. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/TR0441211102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f6a0dab0da0665715406c24c0c5d35bfd9962ed9fb594b2cddf437059aee00b. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/TR0441211103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00240f4b9c3484972c886304694941de897d7f64f6bfc395ca7e32c698f1fc14. 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/TR0441211105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a1d86a736c5d1692f0d5ef178a5d485ec147cd3b479d1b0520c9f2ac1d3c6b8. Chain 2 (Bitcoin): anchored in block 960349 (2026-07-31T05:23:41Z), 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/TR0441211106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd53a4315ae5c668b1511cc62d79e105798f666d1daff7b7cc0c217f7e7513395. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/TR0441211109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x543fa787b32eacfcbc3e1650f73cdc0e860d5bd30bb7372a05f461feab5cebd9. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/TR0441211111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a9e60ba1ab6f895211e50b35399ae404b0ef5901206e9ecc3d28b8b386859dc. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/TR0441211113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x116a55c09a779680fbf6582e8934e87f9f75859a02d0a8887c7865612ca87d25. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/EEHU32001271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e95263aa8c74cb5acf415592b60079cbadff3818e7d0cb9f389294b4f2d2671. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/QM2PV1818126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe18d7a31f66ae55124a86eb0aafbfc70c5a5666c3631249d3f429e2629e29ad6. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/QM2PV1818127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeeb60c0bb04c79260e01def4ea4f50da6f6aa857de9c18cea406015365f8b4c. 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/EEHU32001268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfefccb535d62cf289a546a8c7236edd2bd89a73b373bd502c0df8d4234f41b24. 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/EEHU32001283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ca1da46ce215ef0543ba187fd93ca24a87528a60abfbfdb2169a8e428d51c5a. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/TR0061500178.
Çünkü Deli Olmak Bunu Gerektirir (Yara Bandı Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc91ac3975f96056872cb2315b373487165ad13c240daab1575048ffd1e9ea42d. 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/TR2181900047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38606a0f476d8d5a0506231581a5fcd07c832f220f958589ac7d8092f64cd4ac. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/EEHU32001273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe67ab4e5b32fbf6c0dfb8f63d2b3271825fd3d7413121b79070cf4c931a9040a. 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/EEHU32001265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae167f55533f00cbd5bedc10ebd4bfd49b6a8f2facec3a9bb372d81ddeeed4a6. 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/EEHU32001266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ec7ae21879fa15e69dc1ca294f12f76966310f08266840fadc872e577378480. 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/EEHU32001510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a8fac86bea4bc29ceb2183dad475a741e87b74a73a77a02aa5cd958cc949f74. 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/TR0012100345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71cf439beedb3a090073344959f9d53aa07f6797a7313599b0f02fd1a9733974. 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/TR0061300526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x087dc7b3d0ebd2f80c91513ee628e742795ce6cdcb819c2e254a8867ad822256. 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/QM2PV1633198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x148a5464c33b9fba75072241acb1a081f36d30b53ddc06b63d904a6333cffd4d. 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/UST8K1648330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x253687804ed4497732e9cab3aaa1535f797b6afc0d3eb14a195f4d0bb9f9558e. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QZES62137056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5306b98e9f963c00739154f8d1471ae11448fee33944d773e26eaaba4f4825ff. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/TR2181900074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfba03383cec12dd3e934dd09cc0898aa80282656a93e3a20667b890243e1a0b9. 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/TR0532013361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x506e28983021db858aa8d2efa8e47791a721104ccaed3975dcc8cebeb5b58d93. 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/TR0341000345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfba03383cec12dd3e934dd09cc0898aa80282656a93e3a20667b890243e1a0b9. 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/TR0532013361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2f610c45fc4059eba7e9682c18a274dabcc669c4173b92b6b3858a28cf4ae22. 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/TR0532013446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9cf384dee5e093f1eb61da6fc069bf62026a18882036adca9d7ed4a82bdd54e. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/TR0532013469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece0e91d31dd69765f8ee55f651069758cf92b96ebe2d50548e6dde58d9fa99f. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/TR0532013448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28b868e6269dfa3d2ebb08eb465433acf45aa121a5ae1f45d95e46deec5aabc2. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/TR0532013450.