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 0x4b9701bad66586fa5ce6da7f318a285fc4962fcb679bb5910b668edfc0ee3a11. 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/cf180b48-9baa-407b-86b8-b35b36784625.json and https://artists.proofprofile.net/proofs/artist/cf180b48-9baa-407b-86b8-b35b36784625.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 0xabf75ad9f87ec472082487792e85401c9715156f6fca7987e054403c19a35d62. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/AUFF02300404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0161b08b40ab32263bfd6327feb689f385406ca14836f255a03290ee065cb43b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USUG12300775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c7be4d93bd738044ee11a04320d993dc922dcdf7747f3ea8c2753d3e2f78938. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USUG12300772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0397fc79cc75510ac0b54064337cc71f45d64c0733f5463b9a70b2dcf29b726. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USQX92202480.
Hayden James Presents Waves of Gold (DJ Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa00658a577960e7f14391ce8cda2d192b5b8bf1d80c197da80065ad23a170aad. 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/AUFF02000090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3b1ecea949d1749cf5f2a3f3f9342d9b9ea46dcb3281400a3d68d0b10262f4d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USUG12203102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7d0be6ea09aed5c74f61ce9bef2e19178293296e1960b579c392f11b44b8acc. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBCEL2100643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d24ce866349b2c58f9be734ab570e95d812d2fc729b4afb6ebc46534d2eaf5a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBCEL2000581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefda7891d884641fcd0b91de69814182bc7d0e91de0813cdc6030112288c8653. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USUG12301728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0161b08b40ab32263bfd6327feb689f385406ca14836f255a03290ee065cb43b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-17T00:17:45Z), 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/USUG12300775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c7be4d93bd738044ee11a04320d993dc922dcdf7747f3ea8c2753d3e2f78938. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USUG12300772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0df84c72bc617820ef93c8784c1bafc0525430928d0b4a8a580f95dc934ae31a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBCEL2000583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33aab56c882a5d6863db7ef189f49e384fb7c9969b89189ea6828714ceb255ba. 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/USUM72009935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33aab56c882a5d6863db7ef189f49e384fb7c9969b89189ea6828714ceb255ba. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USUM72009935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee313e6fac0dda6f30de19511db7ffef6d8cd2d9855cbeea4c65f6ae51d6d2e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USQX92204622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c7be4d93bd738044ee11a04320d993dc922dcdf7747f3ea8c2753d3e2f78938. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUG12300772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ffa8c4645c83b34bc4752e13fd07ca9b0eed86c71e607d30bea424cc32da2c2. 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/GBCEL2000206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc646e531ad5a59c998e49fabdbb1c9ce92fb9a8c54d9c796e8c1a9fc308d2ce3. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBCEL2000347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc33d2076db88aa8fe0a52c2cd39e6226582f46d4bc5a7a83d7319ce20b31e706. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USUG12204847.