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 0xe64550be4860350788145410df4d80fbb5b27aaaf711936190babcf6bfe4f6a5. 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/332bb3ce-55e0-4453-b819-dbbca38be6b3.json and https://artists.proofprofile.net/proofs/artist/332bb3ce-55e0-4453-b819-dbbca38be6b3.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 0xe67fa8986d4ca93256d92bc7240c245f9992e6bebe87dc4ad368cd5b928a52c5. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:15:22Z), 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/RUA1H1940558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf447e4508b1c8c4209da8c21fa30782276683223a9eca146ac1a7e27730ab0f. 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/RUA1H1940488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf308f263be640e9e3d9164daadbc6e6d3d3a61bd7bb0bb2ed0c155c91fc5bcc3. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/AEA2M2120806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe97d5d8788a72880dad317a68cc987ea0c0ab2048c72f1ba20d3b458613fae10. 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/AEA2M2120810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04e3baa98b447f4240c8ddc790edcdf3507b6f9ac7e4929f041bca451c73aa10. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/AEA2M2120814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0042a592b9fb74def6c3b9299d7d5a58ab41253ba06008d90ee82882675da0e. 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/AEA2M2120813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87434527c74f9e0ef6eb768f3a79126f8375c672ee15058aa0ccb2521108db33. 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/SMRUS0042547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1de3cb9bb03a41d75bdecd4b951b823aa7f0c754963cebdbd041c6ce3ff317c. 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/SMRUS0042553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x071d76354fa67d6a1c2ac508a4c070f10df1379065d2a283ef484d06855a5970. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/SMRUS0054358.
Ветер перемен (2 раунд 17 независимый баттл)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fdad3cc4d990bc382e9a094cd395aaac4e71b72ec7f4ccd4f0c6384c23682d9. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/RUA1H1951654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e4fda13c500635927fdb936452b845931d2b770ad5b200070ecc77fb20ed0c5. 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/RUA1H1933818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6208269e46b1cae1c2a3d08913582e952cb47700cf51dea11a37ea0ae2c1eed4. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/RUA1H1933815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd76258807f0e1a8a0e2f71f0ac2e7af7a0cc6b3f0759f34008d2866a6ecc2b2. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:00:08Z), 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/RUA1H1933816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa34c83c216f1e9c159d251a70d1a374c2201d32c913ceb98a556b3d971bb6d75. 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/RUA1H1933817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e4fda13c500635927fdb936452b845931d2b770ad5b200070ecc77fb20ed0c5. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/RUA1H1933818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3f97fc1a42e4c1017b221ba257b87926338324949bfa755245326448dfa2dd6. 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/AEA2M2113289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79a2eafe1faa41dd62a5acb06c293555e2f12ee6f5fa8c324559c1e71ff9166f. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/AEA2M2277573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5e574bf3291ad7538a690490926dfb6d9c2cd6221924f2609afc24b1c745f8a. 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/AEA2M2277574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a1ec19f5df859a385120392e601eedea2231a8cb52fae40a46644d37e71543e. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/RUA3R1916239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34101e504667e2b3030f947674b220d630b92ae9eb03408e0bec5a1826911d0a. 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/AEA0Q2138059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x790eff443b51bb3cf8598eb6dd69a5d7c41560a2156c6e142711013864420291. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/RUA1H2264172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20c5b2abee07c9c48648d900001506ba2b4afee149c409469a099f73350e1489. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/RUA1H1884243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa844f60417ae3f75523bbab25ecde556dd2023bef9354bf956b2d9698deb93e1. 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/FRX872208396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa844f60417ae3f75523bbab25ecde556dd2023bef9354bf956b2d9698deb93e1. 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/FRX872208396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x261a8265f8fe899476fd4af573a160de2a6b20f6d27f356b022c34c5a69ab9d7. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/DGA072200563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95d8658543f666632b03aa3e3ee66c9411cb47566954a0c4fe00ce3bbda0a58e. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/FRX202383606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d242cea4b866af1990c6c4b279aec68a465a6e0657444f323265558bf3a92a7. 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/FRX872378331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcc433a4cad14be3407aa6e5f583e3a95d6c31c17f00d59f26177a1ab8b9addf. 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/DGA0H2319007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d510c28d73f3d431bf591ee0fdc9e9154bdca76a5c8b1d956a68a0e10e0918e. 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/DGA0H2319010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x699982bdef380a6143d83578d53c5136d23339e3b2dbe5a61f79755cd3c92eb2. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-17T02:19:53Z), 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/DGA0M2369436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c007c92d6291c30b35709dc96b1ea0cb8830fb1d13591bdcadf1edae586447d. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-19T22:42:14Z), 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/DGA0H2319012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8457b1a989075ce1570e8078984681aecded6047aa0e902e286d61f22124d15. 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/DGA0H2319013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a4b94905f32fe498e0d42992ea77d8229d45293f3ec04c5983c67afa7af3337. 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/DGA0H2319014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa145608d0b50f54dfe505a8669150bf07a54c704e77787510e876a6a8d2f9ec9. 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/DGA0H2319016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1a15266014e7e00a5185fb253a72b4a5f958ef0d6641766e4a047eda8c36640. 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/DGA0H2319017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b37c408a05ed6653b10f7d81fa21d54a7838357d73eef453ba90d10872c2351. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/DGA0Q2348152.