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 0xd2c328dbd26840df39812284d074b03b31789781143b013d9fb51c1d00ee8309. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8a7ef99f-f9a1-4e03-8fb1-dc9384f0e521.json and https://artists.proofprofile.net/proofs/artist/8a7ef99f-f9a1-4e03-8fb1-dc9384f0e521.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 0x72e438e04beae4acc1dfd069ab21212af30db898807784679215585bacae55a6. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/TR3090300028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f24b00c26a76e88518409a0c6c6cb80d2d73d60efe8d7be52e9df66419d9ba1. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/TR3090300029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcada543fed0f6d8d236370d4932a0ae4984eeb8313cfa67c3144fa1193b436a6. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TR3090300032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x546a0637f58b8f67046907f898556a9444bed9dfb3bb0dbf82c4b6d452c1aa5d. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TR3090300035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f447a9efac26bbaf4a22a940107ff817d50d94d5e171a961d547a3093be6f87. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TR3090300036.
Bülent Gökçe, Vol. 6 (Ankara Pavyon Geceleri)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d72f746211be938b18a28b7debd9bb06343d74e9f0557c97c7fb575f1d8af77. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TR3090500040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x493ddf23300229727773540f9591830be9b7f9dd70d088c85be7828b69e6be08. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T01:56:28Z), 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/TR3090500028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d6d208b38cb8e67c115540e216786f4c860c73b20560dd60ef47982937408d5. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/TR3090500044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4a85bbae1b4defaa1958000f918107a11a9c92796386e4313a893b16782dd22. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/TR3090500025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72de566d40f0253cc63815e41da877c3504517ebfeefdc06f3f437b447c1d4a9. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TR3090500031.
Bülent Gökçe İle Ankara Geceleri, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c292d3e712c4b22d94422244baf7caeb39dc4d574658a956f76577850a3add. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TR8140900013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8609566332c60eac6ff3adc399b08246683ccefff1a0abb27238cfa432893266. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/TR8140900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x127e41831f78d47bfa3d29293d6704b742e665c73a0cbf56f7761d43c3eba538. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TR8140900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb11edb1b5dbb4e4c18c5d81bcd2e8344e52dea70d7914103248e17671e43426. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/TR7441100212.
Erik Dalı / Hüdayda (Ankara Oyun Havası)