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 0x08a08a55b0319de9e4b11b0c96ce913d5b1055e4f438f488b283a0b93063f8d6. 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/65e3e769-f1cc-4b2a-b859-3d045d33e048.json and https://artists.proofprofile.net/proofs/artist/65e3e769-f1cc-4b2a-b859-3d045d33e048.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 0x7c03e93be6b1ff33428ecaf17682079149bc95f7d0dad23bc80f11da1ad208cb. 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/QZNWT2340086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d08544cc7160979c6ac50a64a96220d19aa42ca02028c5d84ebf194d595be25. 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/QZHN92492124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb826768c067dbdbbaa2c93ec4870320a2c1603a39560923abe8420a9b4a08fe1. 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/NLFL72300722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a9f06871ad5646571ecbd619eea70f49ee9dd01e9233dc638ac588add27332. 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/NLFL72400417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd43cb1f07c9385e92cbdc57f7629d420ca86fc5d22d86c44963e59e266ec85af. 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/QZMEM2472675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43bd880fdea4ad0029fa52ef88f733e4978f5ffd7ac136d8c4977e2d1bd9ca53. 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/GBKQU2442344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48edd8694cd9ea784dd2d9935668924d544f77b513a98d38655b0e3730f20417. 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/QZFYZ2454857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x197814c2464ec0e4e48bcb2ba1eef6b096f13b3d27ce78d3e7682ac010645c02. 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/QZTB32350292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ff8b43469e2b5d5f2e7761e83ca158a6849a3e5c75b77927a8c26b521616d02. 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/QZTAZ2340241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa7df548af57e6769e304311e3bd2b7a20ce69295335ce81b44c999949a46051. 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/QZMER2360074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac8bbf52e154187e67f557509f825b33e338c17fd1edf9a537a7409ff4dd7a4e. 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/QZMEN2344456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb107f285fb75d1e668415c23e7328eb8dc186596d03d3a5755f7b5318459edfe. 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/QZMEN2344457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe985c87bd1e9676f57b032b4cc8e0e3271a07786c0e733c38abbca9f713e3ba7. 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/QZMEN2344458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2094b985a9795613368167a350c1b99fb0450360b0beb141c3ba7cb6640291b. 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/NLFL72300307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5cfc7d64e3ad0addfe5b1b7ed847a45bc7c64804095e323de0145e31af2d436. 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/NLFL72300309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac6241802de2a1451ba69dc2c9dfe5fff797c363fd16cad13e5298c9c9b8fa45. 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/GBKQU2337731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e2fa23eebdb652c0d3771eea1fd905ac23517e8f3efa8fc9d018ce5b8f33bb6. 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/GBKQU2332149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dcd75c727715ba5cd84eab51acbb4d804d52ce907ab651752054b68af6d60f3. 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/GBKQU2305183.
We are Back (Hardface 2022 Anthem) [Radio Edit]
We are Back (Hardface 2022 Anthem) - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec4105339fe81615b675f98c8957829850f53efbcfab7a92c614f68a01c630a4. 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/QZFYY2366573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b81bbceadfea5e19a4284550aa1203327846c5639a6cd672514d7eb7d8c1be0. 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/UKXN22258242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ed7903ecf192a1908370372d095efb3fde4a627646854ed9880c3fd551f5d95. 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/BEFWX2215101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4776b1f19af768b09dae6eedc2c63ab68a72993582d8dbde6103f963750104c5. 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/BEFWX2215102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa67b5b217d2ec987a7030ca943ed84e8a55a9f23ea34c769b8a7d1edef2b0045. 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/BEFWX2215103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x482ac6f0c8271179d78d78df007de3e92376d86109d22642453622b47e604a42. 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/GBLFP2275489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4e7517521c4531888e8305c5386d3f9c2cb292426ef6b282f46e4fa1f7e4626. 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/GBLFP2275490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccd794b7fb46ce86657bd38e826d8ede5de13811f1ac9fbc3517481882aff09d. 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/GBLFP2275491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd94f299060a2cffce6527f23fd3ea5baf0af59050077f6052d3677e23af301f7. 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/NLS202200308.