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 0x406349ac9f4d1e19cf02fa95d24b6e42e76438f9e8f271371ce4dc9a7caad585. 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/e05697dd-a5e8-4e37-98d2-8e118969f80a.json and https://artists.proofprofile.net/proofs/artist/e05697dd-a5e8-4e37-98d2-8e118969f80a.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 0xf4608cd5fc27edff3f63fa27e6601367609f470a34be31b699a73dbef695be9e. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:09:03Z), 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/TCAHJ2311476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f4fc28299dbb87fd98eaf29c04c17484de0f113b0224f2a3ee5b83f2cc71418. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:30:11Z), 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/TCAHJ2367187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4887b139ceb35619161671813e76e14e1d682aa1a9189830e9ef90a12ec8cd30. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T23:30:03Z), 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/TCAHZ2487800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadcd74d26b2918a0870f5a891c3e112e1ad9e36ff43862e56518cdaa23e2ba4b. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/TCAIA2483237.
Best Of Otega, Barry Jhay, Balloranking, Bhadboi Oml, Yan Yan and Ramadel (Mixtape)
Best Of Otega, Barry Jhay, Balloranking, Bhadboi Oml, Yan Yan and Ramadel - Mixtape
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ca0ebcba9ac61f636452cd652443f82708b19d1c5890f03daf764e8557b7ed2. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:02:25Z), 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/GBWUL2432509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0007dadfb4ece0cbcf0e0a19916678ad157d5455448cf22628189608f69a0d95. 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/GBWUL2488848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2e41999d99ec40d6974e3f55d41eea52f2f0484789e96e97babf15dec528c29. 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/GBWUL2499043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa5721c283b8484934586e87a355e3b3444be7e6ab23c3b483e26e1e693bf8e. 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/QZTRX2467197.
Best-of-TMLVibez, Seyi-Vibez & Zimmer West (Mixtape)
Best-of-TMLVibez, Seyi-Vibez & Zimmer West - Mixtape
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08421cf43ae90882c8fbac6132cb4f6c517d220649643f755025bc3ba3d62f62. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZTRX2467241.
Best of Chike, Ric Hassani and Simi (Mixtape)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb11121bf3060b19de89ef18b5bd6d0e55776c6cabbfdf32a616c8410e384f395. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:05:32Z), 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/TCAII2411304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6794c64d8092d0ce0e1a7a1ba31188ae768059d9f9692d5f02f2a044e5e7d41. 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/TCAIG2410927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc98e3209b3289cc9f2efe5d57524380f6da51ac8d162cbe846cfd8bcbb2f4df1. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:25:14Z), 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/QZWDD2435365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc690a98d4da0ac163f27d180d3fe7ad6fe4fadd822bf9c3b97cd6f0ea29a6c4b. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:40:23Z), 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/TCAIU2416050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25ac595e7954a4d27b74156b33e4f27c98d17e486a0eadcc972779e6398b5b6f. Chain 2 (Bitcoin): anchored in block 959063 (2026-07-21T21:45:32Z), 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/TCAIW2487559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ae88671c713e6a741c16021ba22ba9ce06b0703ae5f2d2a5fc7c19e587d4e62. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T23:43:50Z), 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/TCAIY2453358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbfe24034ca84162ce1e0b1176fc6e1295eb158f991823fff0de23e32e04aff6. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/TCAIY2450778.
Best of Fhabey, Yan Yan & Bhadboi OML (Mixtape)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fe2e9b2613a89ea1bb34826bd8f2f6c414d92a517645f545b5227f103d7c911. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T11:01:57Z), 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/QZZEB2422107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f8f7ea55b0e542b794aa03b36546ad67fc4114b3be665e786264dc850e8b8b0. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:27:13Z), 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/QZZEB2454418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc80f40f070020bb4e9469e2f73e2795c8185239ce071ffbe125b622ce5da9ca3. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/QZZEB2490534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f310c07d97c89d765f81e31669323e6ebc95c0150179247e897e8591c3f12ae. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T07:27:34Z), 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/TCAJS2590217.