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 0x64944892412b91a6bd9756970974676d70d78f259ef80e3f459b05b6dbdcf15e. 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/a5015c29-000c-45b4-8618-8140d06cbd8f.json and https://artists.proofprofile.net/proofs/artist/a5015c29-000c-45b4-8618-8140d06cbd8f.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 0x48ac6d15ae92955d9eff14ce36f23cc97f0fd499513b1c0dd6b766d76676d4e3. 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/GX53U2053186.
Senta pro Coroa pro Soldado e pro Gerente
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05ebe4dcce6f94ed9718b456cb323894d2b3fcc988963be40218f0889dee8a50. 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/UKXN22244705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda2c10f96ff0e7c5addf675636d18880a270ae69bcc8069234dbeef9e75f71d. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/UKXN22244706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x827384d6809e09ad6c0f9c7c879f6ae5e295052855059d7ce343b3169667b0c8. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:47:14Z), 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/UKXN22244711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1eddbb664e1d5e4bd511704275febac5a15ed9e2dddc885063691881c064695. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:31:52Z), 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/UKXN22273539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3161f12b39171814a1db584801af86cd939299e7c16b57fada4334c152ee96cd. 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/GX3Q92377923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ece588f6b582769e510dfbaff44b7c3c1ecfc4acc63851d7af9f5c7c448c313. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/GX3Q92377931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ccb3444c84e93cd3f3196fed9f14abdb38f4bf41e74db4f59e34b9f347f6840. 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/BKD0S2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dfa531fc3173085ebcbca90c393678afced58e000ad0d3acb0479052e59999b. 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/BKD0S2300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f216cd729a321de1d3d3b723cbd232f3a68b9de33b7a428549a3f4746f71aa6. 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/BKD0S2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x871ced5a9ca412e0cf9e09b9904738b5350166185468493c77a83b49a1415035. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/GX53U2393436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x603cf1be5c11a955ea67c5646a21bbef679d68dffe4db0d3bea5bbd17a211443. 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/GXF9Q2529814.
Paula Dentro / Bota Bota / Influencer Digital
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09a1d2b9904627202575290d5ce0a74e08ce15da7192b18b364b11250b9f6644. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T12:42:55Z), 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/GXF9Q2529812.
Minha Xt Te Adora / Famoso 171 / Joga Pro CLT
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda217140cb58f2e2685b08128e74ac443982350679d4006ff4ad62d5354fb5b9. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:25:18Z), 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/GXF9Q2529811.
Solta Essa Cachorra / Banco Do Corolla / Meu Telefone
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a73d5ab2a0a1282bc29df8e189912fd773c4504311977f346a424f39d8566fe. Chain 2 (Bitcoin): anchored in block 959026 (2026-07-21T15:38:13Z), 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/GXF9Q2529810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90b0059237b043311e3a6ae5482d5074b8ba9d47cc4cd2feca7d02a0fe81b3ba. 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/GXF9Q2529809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa21a75fea5db89d386f34d2e67260f2eb65a3d4f5c296e3799cfa8c94559abed. 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/GXF9Q2529808.
Toma Colocadinha (feat. Escama Reels, EOO Magnata & DDL 071)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39ce0873bda1091e819a84b4e833980e4bb1893d78531a7059569781a799f377. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ESA112446782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12c7a3d36cdf7a23705fd6bccab6ac5ced5f7046ba01845d98346dea488752c7. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/BX8DI2400002.
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