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 0x150c597e6662328921d1d567ea1becc5c9bccedacd763fcab69ffae6a3d4f36b. 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/9953151e-26c0-4a1b-a3c7-f5e926a28b01.json and https://artists.proofprofile.net/proofs/artist/9953151e-26c0-4a1b-a3c7-f5e926a28b01.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 0xd350fe22c8320bfa951036a574811b6163f5780477b19437f33a87c8531218f6. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T16:00:22Z), 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/MYNS12143082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3647b2fb8ca956e11cfc4c531969978568f71ff3d69c2a2741d9d25302f03a67. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/MYNS12143083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8ad8fa84ed566d4deb8365dbce0f317238e15eb8a9f67bdef92beef3bca8436. 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/MYNS12143084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04f326d6cd9cb0b6bad532d2abefdcc179f5dc6605a954edefe758c63126836f. Chain 2 (Bitcoin): anchored in block 958658 (2026-07-19T04:09:09Z), 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/MYNS12143085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a692636aebd921472a1d36f54df227b6fb44b2c173765295d40d1d40a998f86. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:34:21Z), 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/MYNS12143086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a26182a12d916e0414cc7d6194245905e639f86a149e6f50f09dcf3edcc91a3. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:20:12Z), 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/MYNS12143087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54baaf204e29836d6eb1fbc6a9a0b2b1550115f0884520b0d0690aaed5106fe4. Chain 2 (Bitcoin): anchored in block 958920 (2026-07-20T18:14:22Z), 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/MYNS12143088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19b28da69346f84af2546bc7fd00e65b557ffadc93d8b6c75d670254f607a884. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/MYNS12143090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba4af9c30b6695aa52b821c26053775bc77d3c44e88afaa1ace87ffd68c65168. 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/MYMT21700150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d2debbc12ac8daed18a30264793390e2974421e0edb2a1165a81b8fd4975392. 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/MYMT21700152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e89a7e6006b0f08504b79d8a14bac578f195abe5f618b75633cc42e9954e22b. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/MYMT21700153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1681286acc2fcf01abaaf01a5ce5d65ec98d644eed89f5d190d68d4a38d8a785. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:07:17Z), 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/MYMT21700154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6405a501d01eded9fd754a38d7e10a8e5beb374b752eeaec79ca87fadbf1aed1. 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/MYNS12244726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb78816c195508faf8388c6c6b505c37986b9ee6c1de7b9c413a5a402b8173c00. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:14:37Z), 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/MYNS12244727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb07712f6f0b26128ac545034b26876ebb73f1fd5302ed45abadaea8638c7cca8. Chain 2 (Bitcoin): anchored in block 959011 (2026-07-21T16:19:43Z), 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/MYNS12244729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d915d6fe4ba836a3ed7feee41f1854f6eb5978ab4cec55753704a45794ad4d1. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/MYNS12244731.