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 0x67c7cbbd806b47c8daa105eb3d300822fc23e4c2278326af63d0ab25af7bb21f. 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/64e1a441-32db-4809-aab0-1cbb79d41a6d.json and https://artists.proofprofile.net/proofs/artist/64e1a441-32db-4809-aab0-1cbb79d41a6d.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 0xdb1179d12ab7e18c4f317eefedfdf75d3b395d290ccee176eb10745f591592bc. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:48:50Z), 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/QZ8WX2212833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbc713d2dfb1c8ba226a67a1c9de4579d2cd9e957a9ece8bfef9031267e25a37. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/QZ8WX2214238.
What A Beautiful Name (Piano drill remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d8997eb06beb02ce0617b329571ff25f0eb40d4eb72739a3283984b132f623b. 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/QZK6P2343485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x709e00eb66d205d398dbf2a0257d113adf25101b5530c0de78de6f7338f17a18. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QZK6H2389112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2850a5c379d4fc7e5010ea10bd3db6bd395bc1e6e71e9216ca2d7d12bf85416c. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/TCAHK2390791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb2f21f40693f11a66760b091531e6f9f73d644d021494a64bb120e35fd4953c. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:44:38Z), 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/TCAHM2362098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13cf952b31715c1ce9d762101413ad0d54c37bb52ece3898e173339f66b14b05. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QZHNB2349762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3e314f94194e816f696a01fea90ebef634508daefe91d52498da3bd23a7cf04. Chain 2 (Bitcoin): anchored in block 957596 (2026-07-11T18:43:56Z), 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/TCAHO2320400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x352787df134fe4ae4d74de34542323fe1feb5924c2163774ec297e104b95e558. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QM42K2271579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x352787df134fe4ae4d74de34542323fe1feb5924c2163774ec297e104b95e558. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QM42K2271579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09f386c00cb954b2b0977125359713b33f6ffe59eb2e7a1a889c7b485e77b553. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCAHR2309471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33b7df21d3b7fb6340af097e567044c2f829f158eb6c6bbc0cc213c2e3b95d9d. Chain 2 (Bitcoin): anchored in block 958697 (2026-07-19T07:58:24Z), 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/QZPJ32349234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd673a55caf5d88c8097c53864b8c2129fadc82c6d53caca35c30b47b594b6343. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:33:46Z), 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/QZPJ32368050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeef8f7e651fa186bf3f546a0661c11d727e3320db2fe7545e7f0a71e5fa7327. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/TCAIP2406700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa39e4e0c85a0c47b85fdc4042b0bc7463f152d05506f2e539602181f0c7970a. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:00:12Z), 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/QZPJ32401492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32c1258f7b0a10b61ed2715ffb4401ee75bb4ebbeafb2a901ada4d3d1856d19d. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QZPJ32403699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dfc10ffaf92f0b8c1c225b60e17cef03726db3cb34fe4bd38c683a8a4c88eaf. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/QZPJ32405769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x802c718146284f34962c10369f559ec8111876bea1c3614d4213f99ddeb951c8. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZPJ32432294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1190abf8553e3db760cd9815f3e29736beacb3941d9da9bf01b85e3d49178c97. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/AUMEV2566518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef57c3dee11d328d5d1df4c1ef4ae4bc1851ed818122c9ea5e9ed1fc83cb9439. 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/AUMEV2575082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f55784b99cb9b6e0d90843949190cf5f69e1647252b60e60449f4e3f6ea0d09. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZPJ32485774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff12343f2a339354c9653660dc1d501070fa9168d1803855cfbf68e71a534aaa. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZPJ32485775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71294aacfff78ef5b260f37211d59b4a5df3b9ffe62542c77082ecb5a2da3742. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/ESA122530518.