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 0xe54aac19783310b5c61b462bd24c20cb30378b142b4aaff98b1122429d8847eb. 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/49913612-1497-4762-bde6-d3262d7f6f5d.json and https://artists.proofprofile.net/proofs/artist/49913612-1497-4762-bde6-d3262d7f6f5d.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 0xc3f773d5e6c036bd60507abba99be0c9c4dbd988332c70e6ac9cf7d3ac987188. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:36:53Z), 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/FRX452146026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x707a70c6ddb7e0de371c4fdac995a562d80af7c26eed2e737f16761a4a86dffb. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:01:02Z), 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/FRX452146028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c6d2155b9c680fe6698ae8e57d01654981b216827b2f1f76dd89132ae1e0559. 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/GBSMU1759542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99bc6db4e27c870ec7c9028bedf452509ec40072b24c49ff9b48e03107322a47. 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/GBSMU1759545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2378644e7ec3e8e78ec62fb48dec63ebe0d8334f8fb08ea3f0fd6c5417e55a1c. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/GBSMU1759547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x165679a51a23dc0ce9242e9468527455f3734d85cf9b6422fbd1eebfeb177025. 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/GBSMU1759548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c043874bc8152b08c02a0c107ee0a52f3559bad9c1ed88bb4b8252f1b9b2a09. 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/GBSMU1759551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0305e7c640be7b815fabe8a93bd5b579d6e533bf6661f8cc117986d477de9a76. 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/FR59R2249077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe6d42fd274bc9871c853c2abfb0d3efe116680542fb7fc9bea1958a385ed3ff. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/FR59R2249078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf75a1d7c2597cf951cac0d1b27fa10686cfaf1e84ddeb74ec936af990e238a69. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/FR26V2032947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b94f91814f92950144abedf777ea4a3ef46d458e5ebba3192f21803f36afc94. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/FR10S2114510.
Hisslərim Dumanda (Arif Zeynalov & DJ Elax Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6a4d09e1def54541c707d835fc5406efba4b79376c73c42b2f6ddd3d37e7e35. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/TRA162300274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefd110d58d4e619f745cf6c0356c6555ec83ce26df87966743a16b9e5243bc73. 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/TRA162300275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70a67efd0e6446ad677ab42a5b381b2c88b038ba25bfdbe14fb196288f12ff32. 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/TRA162300277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0b863f397b3dbfe3de32acf68777b3bd712aa45f35b1401170f67551ba44499. 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/US7VG2370051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21c51acf59e8229f5d32e6885ca537d255e1962e44b5ee9aad0286567406d45a. 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/TRA162300279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0b215a5433c911e929321b3e795732ceaf78bb5912dd623f859ade789f7b68a. 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/TRA162300283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37afd74d55463ace5bb38077fc339118d1ed982781d2a03ecd4f266a9130d291. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/TRA162300276.
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 0x15e92bb09b60a0cb700589a4a82d508f82f5de15ee5b3214a9dfefacd512a126. Chain 2 (Bitcoin): anchored in block 960230 (2026-07-30T08:32:18Z), 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/QZW9M2254461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d77dfcb6092d0da8930f734f57be7be29edf15b7e76f18d08b23efe44c44b25. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/TRA162300282.