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 0xcac6aaef62cef6d3ad849137639c6d2ad4c73d4f4b0fd212c48339b7d81cf3d7. 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/9883aaea-0a8c-4d17-a24b-571a09f66473.json and https://artists.proofprofile.net/proofs/artist/9883aaea-0a8c-4d17-a24b-571a09f66473.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 0x3cda4fb8a37acaf53bce4a3c5ab212597ed53a7e7172566f8987706ba154a7b7. 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/IL4060701865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a11d4bfab22633472fb43e2dd5129d996eac907087757e7a1be97ed3b14531b. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/IL4060701866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8c7cf83d0e65888cde50493624c86877c4a006472f5c6e6999a3eec3e42eddf. 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/IL4060701868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a3a91fe420b8f632e625c9307da3fb2186e4261357a51d43531d0c4d19095c7. 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/IL4060902701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb974f0fbb2eb40f3b993f1171768dea44591651722f69734319da8066585383. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:16:57Z), 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/IL4061100104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd67743c12777d10703f6f6544b6b289b8fa236eb9a93e78cc79f4ea027e51e12. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T19:52:31Z), 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/IL4061100112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55532cbeab5275407cee768abdd9badf39276e7a34f4e84d1b7e9f525c3ae550. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T18:29:19Z), 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/FR2X41987986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0839069cb94f322c9bb962e581e4f968cb68c6a8c7521f1f3ffc670c0c06926. 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/DGA052245703.
Nasty - Bizzare Contact Vs. Electro Sun Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb453225eeace1ea73574c1088c1d4c5c70782cd48034a78f4a8695bf6dd07b29. 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/IL4060800104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96b727804b4d475c7c0088ed21c5aeb8b02d6fbcf2db0c3125daba9aa3b30a2a. 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/GBKQU1016391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf6a0c808d49490bf48556b55cfa0fe85adcc3ef937edca9b6d76df86b500629. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/IL4060700909.
Over Beat - Plug N' Play Vol.2 - Compiled By Visual Contact
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2417129e373016133a44be4656db8e83067f74744efc0d4a48010bc7d0705d4a. 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/USA2P0722563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef7d0ea5fc677e32c00fbfce44ed03b74bdaef7ffbc1a423fcd49cd1ea4b5208. 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/BEY922007262.
The Set Vol.01 - Compiled by Beat Hackers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2997ccdf95da99d5175728e60b3474b0a55ce3c03eaa6dedaa0b2cb6d9886d0c. 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/USA2P1228744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f092c4c7d99ded06817835a907d81c1448baad40f770db0bdb0d1804fb677ec. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USQY51159038.
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 0x7b51828c55fed8941fc6b32b04c52d0c35b4aae3061b2b519ff946b3e62ff8a6. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/IL4060800917.