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 0xba5907b7af4d16a4e5ca82866d546bde1f5c70e3e69ab9da286bb32e24a2dfad. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/654a995d-efca-4495-9e85-1a17684c3aba.json and https://artists.proofprofile.net/proofs/artist/654a995d-efca-4495-9e85-1a17684c3aba.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 0x2be036a613f220d520a58711fe32558331ab8782ab203a7adb0481ee615d97d6. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:57:49Z), 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/GX3HH2163610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa60a5cac82ccca83855f0df76cc33368ba6eeb45d984e50695cb3bfd3f38e367. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:45:35Z), 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/GX3HH2163612.
Mahloko A Tlhoare Three - Ke li roabatsa matsekela
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x606d688346f414021fea2f3b0c045ee48385fb18fa2fab203366effd85b05cfd. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/GX5MY2129903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4477eb4a6668b2673dc8e42aaf8435acb75f58a80785cd4a10e4e590acb99c11. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:09:30Z), 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/GX5MY2129907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc80f911b7f546920e1c1bd262e371d8bcf29e7f9c04ef42ee798ad0c86aa674f. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GX5MY2132447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c5ee66ee3a2c4de7cfcbc6fe9c87c8df51559bc67ed02300102b50e4d622607. 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/GX5MY2132451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaae3a7f81dd86bbdbc67c1acaec9f04d19676c0e207780d7003d2ab81e31677. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T06:52:53Z), 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/GX5MY2132552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbe36e9274eedfb14a636cd4f6ee9a98c94aadf587cae22f1f549dcd0175df9c. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/GX5MY2132554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c3bd29fbb1199bb050ea949ced4ead9a4edd695edcba5809db3a42c8387e6b6. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:46:47Z), 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/GX5MY2132555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2294f2e7fa64b9a85cc0c3cbc35fe5579e9e624c2ed56e6efb0908a30105f319. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/GX5MY2132556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd041d244e61bfd0e4bbf93dc11d2340d6bc9a630cb2207c3b018b0c48b69fd5d. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T18:56:00Z), 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/GX5MY2132557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0481b6bddc85b0cdf60279de96e4bf497666e6e14097affc8e5169ea9f3be048. 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/GX5MY2132559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x061a413b16a44a7169fa429ffa19e1bb917f1d31622156580cee5a9db8ac593a. 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/GX8LE2475693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56b53ed520c410bb4e218cdc83b24ca55d1d2002e36d599e04bee2bee6d5bec1. 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/GX5MY2160323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde5c2cdd9147815c44fdfb78bb67d43510d584dff6a8ff386c1f7995c21abf67. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/GX89G2419774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe62f5cb18ed46769394216b8c3053eae25a62046ac823ad8e6b667b95bd9ffb4. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T21:34:58Z), 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/GX89G2439557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49f03614bae7adc16679ef5938553f3b928d1c26c8b070e6df44109d16aab837. 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/GX89G2470063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb5d657d68380d978c4794fa0baf47db0bb106007aef88f7446d3059076d3b01. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/GX89G2478891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a264a3fa1861d48943355e6f4b0585936d26c25e350df5d6385d746ee36c3aa. 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/GXBDT2473199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x925f108679ee38d6ee3b0ddb3be7b9f1b3e8b7ce9dbb79c170fdc58768f9c9df. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/GXF972413988.