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 0xd203d041f4aa1cbb2f00e3188f5c482f78c21d76575696cf9acd71cb83a62625. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e4cb5c89-1351-4bbb-a631-046ded1db8b1.json and https://artists.proofprofile.net/proofs/artist/e4cb5c89-1351-4bbb-a631-046ded1db8b1.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 0xff1e2520ca5dcf6d389a121b902bf3a33b5595469a0a457b8c1229634b6554d1. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T07:21:49Z), 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/QZ5FN1860693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf96ab3b1d36b2ca082ecc2265c1ae8ccc4f372c6235d60f47e1d818c293464f0. 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/FR2X41933526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1495e758a4b6722850b1c136e8b18d0a787cd02c4a43133915bd0c887f64ebc1. 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/FR2X41933527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07ec6001e1182620f20911ac3396a666357e74f664d9cb2933abe863bdb477d1. 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/FR2X41933528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7841160f9fbcb558625f725aee2e517292673d5ef7b25e718e118db282782fe5. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/FR2X41933529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b6c44fef16f5dbceb91a2af128a2f2314267ad98be04e896ff6ba81d344730f. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/FR2X41933530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cb4a02c6aa1540ef5c6c259d9289a0a434c8eb26b422cb746b0e95323a1e098. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:58:37Z), 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/FR2X41933531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf0955bff08b610c9bcaeca8f31ccb3f7bc39c6e798a8705eb1410243da91f6. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/USLZJ1892499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x353d9d47cf7650bdc91ace92d61891f0ff6b8e2b93d203577969a778a579cb2a. 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/USLZJ1892506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaffa67df0ad04e5de4386ac0f759c18296e7c5242a352ae8dc74a6814460bf70. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USLZJ1892507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23a1b653846b0dab438acd242cb2db73e458128ba8fb75226ff061db080277a2. 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/USLZJ1892509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdef8325c53777cfa03b097b9768ed2c4d233642572b83df4a3f70c51fec0d3c4. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/USLZJ1892511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ca600e4d9ea643a82263d09a52e6feab66dc0def6e951fc703c20d3320595b. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/USLZJ1892512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaffa67df0ad04e5de4386ac0f759c18296e7c5242a352ae8dc74a6814460bf70. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:28:52Z), 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/USLZJ1892507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ca600e4d9ea643a82263d09a52e6feab66dc0def6e951fc703c20d3320595b. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:10:30Z), 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/USLZJ1892512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ee5eecc8e043c489202462658bd939d975e177afe1d4507c77f57c7d7416b21. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:27:02Z), 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/FRX201945874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2f1eeba9008a55a3fcc5454d476e35a71e775fe8a124be14cb57c30c9f40790. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:07:46Z), 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/RUA1D2201817.
Владикавказ наш город (Adam Maniac Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc57f20408bc4ef3f7a984149698759cf19f7094b9e247b00877b013514c0a7dc. 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/RUAGT2200549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8e3508d56725b3fd29da80a5b8783067157654f6bc4b989f41607ffa89f517f. 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/RUA1D2406188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde8dc0511e7068478fb2da96f7a3fe0dcf03926f682ae02b5a27247d4877dccd. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/RUAGT2430761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bd1ec7eb036b5d702878fbb0721d41844759fcee2c9bf38270b68a2aa14ca7a. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/RUA1D2514827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9847c3c091b44be6bb6a0f64deb4aff3faa911d8a587ce21430016bebf38582b. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/RUA1D2518561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf83db7360777c8a1f73172418ca55fccf1183e0bc328d800305ccd8d2ff3cfa5. 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/RUAGT2522242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63a02e0b9b75873bd5f2602b24fd7b346dd228748b2bc7b1d92b1d74f2c2e16b. 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/RUAGT2537311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4721935004d21e339eab5c4c7c018e5cb0dbcd199f8b3fdad57b6f60e084f4fd. 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/RUAGT2551615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2aa4707324b466a4d65cde4c6a3cf0ecc343b38360a3199cd44347749b75ad0. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/RUAGT2560323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93feaabee5d8f5f4680252c98e733601141914111def4ae8d85867616b5e2cda. 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/RUAGT2593024.