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 0x644645076f3cecf0d2f33163bf7c93c5ed488b4ac134ef01ec42775a43a4b35c. 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/0c55f1b2-b545-4654-84c5-4b45787bb9d7.json and https://artists.proofprofile.net/proofs/artist/0c55f1b2-b545-4654-84c5-4b45787bb9d7.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 0xccf99c2dd27b9f52cf089f834d79e0a3e8a3a7757f52de9a84e6314831e11920. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USHM22104132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb512da9b467b58f6758f0b4fc1ce62ccb5ed4b0a45c992d706c4c1ad30eeab. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USHM22104133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ddd6361d00c841ce45c00f4b8499e5c6914fcda5585ab7a10fdfb25ebafd61e. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/USCGJ2137004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x149cfd2e3d7eb5115db0bb830ce844eeeea11f6a5cd1f972623b5ce1bc6d110a. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:23:15Z), 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/USCGJ2137006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x059e2380ce05e92c420de8c19c4d159a5320faa3bcdbe8f0b9be34476538d413. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:31:51Z), 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/USCGJ2136999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c7dd91bacc3111667400325b1b44378c8c44b1d2dda91da64546d79e452b148. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:15:06Z), 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/USCGJ2136998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8bbfd6447738a6d58f7eb515b5aebd0891e835ef4c518503e109d94591dc2a5. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TRA161500143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcf18491363b06367af0f09c312b6883df8946abc956163dc785be12d15f95d0. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/TRA161500145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5805b09d55aa98e5a21fbfc45ec3b5c56114a22e520f47c4fc11c5e2a93e105e. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/TRA161500147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x499caf3533abd627215eac62303fe85e9a52cccf830556761d45ae068a2a455b. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TRA161500148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd58ed80e79d0d99833a64ccec05a194566f509e51174938f15d108278d930948. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/TRA161500152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7531d1e7d32e7bc6b125898b89126f0dc15dc95e8843707dae39d56f636055d5. 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/USCGJ2087171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e7c4516ee92cb3bde1b65f86032048b886fa44e2a2f7d3c8c7da5169e696222. 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/USDY42021879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fa78cd1289dad483eaff7a1ce5cd43a9244c70c9403a513fbd7a3519d4bc27a. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/USDY42021880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4e309c14689b7cf16f11f3d12ba072fc948bc9eea396f838dfb5d253068f00d. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:19:42Z), 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/USDY42021881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdde02bedc6ff12098282a485c38599a84d30af2622f9a60583eb4aaa0f9e854f. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USDY42021884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf1b3624afdd95984ed91ccf70ae7e7f5bd30d1e6c02b6fdae59faa69701c22. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USHM82152219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bf96ed509ac3ff57eb16696a8e2ab8881240322f2a3d9b255b5faefa6620b4f. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USDY42413171.
PortakalAltı Kayıtları: Derdimi Dökersem Derin Dereye
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeca7f48bda532c373575948ef77e30716d5cc676219ff6beb0bf9d1aea69bb30. 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/TRBNO2200045.