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 0x39ed066e823b0df254d759918a69a8c0bf1badd54e072f2de29b21d5b50cbadd. 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/d3e28767-0ac6-4278-b094-1306353b4555.json and https://artists.proofprofile.net/proofs/artist/d3e28767-0ac6-4278-b094-1306353b4555.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Währenddessen (Drum Kid Remix) [feat. MoooN]
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 0x0783e0e16c16e04038b163a8fcdda19964a3a27a6cee0b81100c8e7423ce8d80. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEBL60409928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ce3212f440b57c001f76ff908c750d63cd91a8b076a755268ce8b8dfdd507f4. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEBL61500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5819a732a9befe4da752e00d2568be5f2c3a29acfc401f314923d7f7e3162fbd. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/DEBL61500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd14ee9d2ef1502a43f954a1b5632bb26b85cb1dc616b08ef58f7b67757d4aa81. 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/DEBL61500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00eefdf666bba57af02ad82da0ecb161bd971363f9f59686a7a3179f3d62ee81. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/DELJ81605610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab2bfe94c5b3d2e9f46dfb7fc268eb8896e511dd886306cbb2ea575440bb403d. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/DELJ81615218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f7da3ba6b1c00ab30d3557df727c194cc5cacda124803d3586e60d8f67efff5. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:41:10Z), 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/DEBU51700600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf76b0dd5a956e6e6b5e21ec422ddaa20748df880b7b88f875b9830caa20d86e8. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/DEBU51800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd92019c40cd9bbf93e4bcd707cd7eb90e01a434760b219dc748f5010c4ef8901. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/DEBU51800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb15b399e1fc8bc7f8a1b7dd915342f9fa25df57c3a96710e417e715fa12afe5e. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/DEBU51800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e031fb7341ba764557cf6194851786ce84373e51662b26ec8a31ba6d9a23d8a. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/DEBU51800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2003f9f967fa0144836e07fb4a5097b79e82495894d3f3a7d482ef7812db6b6d. 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/DEBU51800011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c463d04a6da0c5478d95226d4c92d3e8018f9cd4dce36fc3e416471a9add5fb. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/DEBU51800012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d5063d47fdc4646c063dec1a2eb6fa165b45e51ecabed44568ae5fe342fa260. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/DEBU51800014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12d5bd1cdec9630e377aaea2cbd84c10b76f16ba5d165a6c5cbbbdb7ab23b947. 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/DEBU51800015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd9231d92fd5149aed5d5f8736179ff046cc14ccd07a267bbbafe8274e50624a. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/DEBU51800087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2d1be783f9995c52563fbb757777f73e23c3945a3a27486b58d17e0677b9bb9. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/DEBU51802531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf70e7d55ac4a8bd409b4aee932402b11da62deb16cfc6429a897fa328943e0c. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/DECE71900908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18cb9d7fc013372ea319b768f407ae67e22b77b91cb0b5ea14875e63ac222393. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/DECE71900910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71a9824448246af080a3bc45228790f48a63b6ceeafc881e5f2bda29dc8f1c62. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DECE71900911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x517155863e8c5b7899aab23de5ec11b215f935dae2915088a011ffbf60d596eb. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:35:13Z), 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/DEXS42000025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f76c9d95c1ea8f5115887806315be5c99ad118090f26b29310edc48f07b98e1. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/DEXS42000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61ad7819dcc206bd8e5a8f97e488fc006832d9967617d1c430b8fb3961f25976. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DEXS42000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbd551bdf2af6ec2a659b08b74e732e06610b6fd0edbe6a4d8a83f03599ef754. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/DEXS42000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1212fe7bea8003049133efe5f81427c6405c59749836d104f08c593b8af5506. Chain 2 (Bitcoin): anchored in block 958130 (2026-07-15T08:37:45Z), 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/DEXS42200007.