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 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 0x5403be40561886904012f021084993de010dc68053e876c0ce6f228ba083b2b6. 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/7c4b4ea7-f95b-4825-a7f4-49dcbf5852bf.json and https://artists.proofprofile.net/proofs/artist/7c4b4ea7-f95b-4825-a7f4-49dcbf5852bf.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 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 0x8b3a3bc769670d3a27ab582b2883a9b769f83abfc1986a7596611dd0bb54456d. 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/GBKQU2364157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb47dbff4ee4bebbe5ed90233693a2059796d451def12c443cde4f24e2744f38. 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/GBKQU2272564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a6aaf37424f972bfa17e12e66e500a5a9a9b071264824e23c779312d921600d. 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/GBKQU2251758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadd03cb75a0a318901777c91c87bbd64bb21d3806f040d808e4e0eec078264c1. 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/GBKQU2138593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x737fa4c03299120975e116b38faca1c2331fc3129bb81e87bad105a162c65629. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/GBLV62000124.
Upcoming presents The Hardest Music by The Biggest Talents
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3312b05809e25bbf133ac59749c3e12d8ea49ce941ce7eec1cc958006199c1c6. 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/GBKQU2052772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb77b4c9f01987365777db36be137cedc9d65f826c7826b901210a96cbdceb5b2. 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/GBKQU2052774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e5c8578411ad115a464e2fe2507a8941e9533b496a20d39d5f60c0355328450. 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/GBKQU2052777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x628ea2e47bd479c45f29374c34a391d2f91207eeae4691ae0349ec68161d2ee7. 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/GBKQU2052781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8eb294945595cd3c1d30d4e502c077d4ea981960f0e73cd0a378c3dff7760d9. 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/GBKQU2052792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2675f5fc88692224713a24aedf0060993d3526d47accbd1b7aaa5530bfea97a. 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/GBKQU2027358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x462843c3d153d458ff7268a212784f699585b33e9807f977c846b1b09a094ece. 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/GBKQU2027359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb16542dde28e2f6256394873094f7238cfa027d2cf5aea1b1f81fac26741a8ef. 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/GBKQU2027360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23ff9159ebd69089e057883660d77c7d19ed1e0c8aec683c115557b4295dedc4. 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/GBKQU2027361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ee3eaa0a53db36c999d594c4041cfeab1622dc149f31f9a93c6d85670eaa899. 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/GBKQU2027362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe44c908da345b78ad9aa565f858cb0d24dc9966942da9e35e827e89a94898bd9. 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/GBKQU2027364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cf04bf353f9b529d9dbcc64a1f8989c49423080d9099406e48b7aa5f58b48a3. 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/GBKQU2027366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa534e58c7f59c4a4ea0a3040a366d12472bf77fe31b4c46ee6d6793dc7905c49. 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/GBKQU2027368.
Scream For Mercy! - Sickmode & Avoc Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb98b540377b70ae2003dfca7fc643726a272536e5f266ce3cccbfcd0240dd09. 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/GBKQU2027371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96589e818a4564acb6dde0ce0bee3aead86d0c173c58d17c1a8b05d00b510538. 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/GBKQU2027372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59fee58098199b300dd72eb5d936171047c3f8271bf6953ff9c62479d6b2b2d8. 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/GBKQU2027374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea25a48bd0da85459ea4db8f187620cb5e9962e9e5cbea83e23675788dd3fe18. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/GBKQU2027375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb63b808182b062829930276e648c4fea83484b35e70ff8397f1c5c517f37a9c7. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T16:23:48Z), 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/GBKQU2027377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fd65fe82ab053f1d9754d034079cc4f9af7a6c6130c9d7739fbfad19b485e2d. 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/GBKQU2027378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc544deb2007878bc7bc331e07402fb8498fd0580b46cc4d19343065171172e7. 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/GBKQU2027380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x439d41b8a9d6d96459b6a60bf0c8b118b2ba0752c1e25bb7e6151b807a2b6065. Chain 2 (Bitcoin): anchored in block 957034 (2026-07-07T11:52:37Z), 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/GBKQU2181032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc52cb93743a03a70fd9fca5fc40d9cd62759c1dbe4461c84d58d21761fed004b. 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/GBKQU2181033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe98b77b4cf079a1d1aec1084bfb4bcf565363623fcf429e6ab59ff80a4e626. Chain 2 (Bitcoin): anchored in block 959146 (2026-07-22T15:41:47Z), 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/GBKQU2181035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd0c275e0f2e3ef7783c086d6d0ec20658ff425626b0211dec99e9974151529a. 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/GBKQU2181039.