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 0x229f77f2a65000279e120248199d1a4c9e55227fb49666ca1dd8360bc14c17f5. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/229a673d-3767-4c56-8a88-bc7117284c6f.json and https://artists.proofprofile.net/proofs/artist/229a673d-3767-4c56-8a88-bc7117284c6f.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 0x5b801d967820419d0c7b536891c008154963ac38f1e08e899abd3dadf8d2a4b6. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/UK3AZ1925623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x069dba937926917fd1a31879327f95b8d7b4f814423ceb4fc9703bdd8277e64e. 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/UK3AZ1925624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f37b8133cf6d6969a66855e5c0b681d78aaa492987e20f2b8fc7f8fdda13413. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/UK3AZ1925625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46f68199c0710777f24d329a4fd2e65a1f0a719b99fe7f2a328b874fb5cb3f3b. 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/UK3AZ1925629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc41b06bc8b8538ac43db0f26bb421fdfea27690f83bd8c29bb842ee1c6fd379. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/UK3AZ1925630.
Medley (Jesus Gbedu - Join Me Thank the Lord)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a51728b62ad77af4664b1cc3fa1a74e40bc63fbee09e9913898373ccacf1b8b. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/UK3AZ1925632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5e34fdbd8d79c9a16f1f6befabb35770f64533bbdb43fffb8599b76c14e29b4. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/UK3AZ1925636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fb191e4897634d0e0eba1c4660f7f223b3ff0a75febb6f50b95dc0cf24357f6. 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/UK3AZ1925637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e4fefa1c92ef53738112434df03e69d99bf06196cbb19a99af263dffb18cca0. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:30:31Z), 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/UK3AZ1925639.
Medley (Ijesu Vbu We Eucharistia - Dorhi'evbare)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30efeaced1c48379c11cce66f5cde915dc2d13298b8f53e6fa405385fb013cfb. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/UK3AZ1925640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x582634b11942f854c8238ff45b464318dfd70e9f16ab8b7640b5bcb9dda027f4. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/UK3AZ1925641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa96e49af22bcef86a8b97fabd02dccff8d7e934b040d821527db376197000f46. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/UK3AZ1925642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17d2918b5db6f45837a6d2a3c2275ea47ccf47e23ac8340f296c3acb87f741c3. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-19T22:30:05Z), 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/UK3AZ1925643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x823e05affb5011ed38479d6ab4e4a7bcc0c46d9f1f664546894a0a6b9b8da9c7. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:15:41Z), 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/UK3AZ1925644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeed81bf3a0148b6e315eb59c76c651c1000c162bd13e39cc1b59442a9be7bb07. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/UK3AZ1925645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5481ac80c563049d861bb6012c8ec6d06580a000be9764fd93c3358e3f4f3097. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), 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/UK3AZ2029366.