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 0x6e5bb47247f2bedc33ae807220da69df5747260f93b5dbef641e5dca34f71c35. 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/4cd947e4-9927-47f4-b85a-70928e31faa5.json and https://artists.proofprofile.net/proofs/artist/4cd947e4-9927-47f4-b85a-70928e31faa5.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 0x99a187fe29d558040bf6c1bdf8432606c345a55f1349eedc6ce1b50689d0f55e. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:02:14Z), 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/QZNJX2069157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcea116f9c9331ecb275b9c4287da0f0d1d7a494ad79755ac2ed5650d5482a567. 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/QZHZ52140482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x105a308f80b95dafc4cae41fedad85c42307a8e8b0cae2513ae276f2512a0ba4. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/QZNJW2147472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63215b913f02f125911c7e6e33ddf0b24866b656ad88ae8e1960e107f2a27aa8. 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/BCB8K2200026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x958f2ceee9eddd17b774c20197df5787cb8ddbee0c30dcba8626d596f220dbac. 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/BCB8K2200128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f28e84826aacb502b685a016303f200994d8eb24e99e8e5e5e9606a3c7b99de. 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/BCB8K2200124.
Desejo Sorte/Igual a você sei que não tem
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x007240a394e36b21c92c92977eb61770bf97755ba725708a6ff57df8ac8f621b. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/BCB8K2300035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5358f3d8fe6ebb69af52cef041d3ed516a1a9a91b3b6f01348084b29b9d13704. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/QZNJV2493500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57834e0574b08a516127d21b08b65bee27604ed602a5e9aefa391fdc9900c51a. 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/QZW9M2457375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2cc06113693f75ec686325051cfb8e7dfb260a9578a862d01ec5f32470c012f. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/US7VG2506641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb3ef884b558cb65bbdc674aa84076f18a8b4ebf6206ff6551d549c085215bab. 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/US7VG2503843.
Vacilo / Shakespeare Apaixonado / Nada Vai Adiantar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x921d5c135d06a9f34647695cf515d67cd79836a5ec2e0b3bf00c07d53792a190. 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/QZNJV2570669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf892b8c74a15472e423f835df48e5791ea055a28f6e21a068816dd77c37c3e9e. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T13:08:14Z), 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/BKWMJ2500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bd95af6f0a410b3e1fe16c3d631d1b4fad211e5a874c5b0949b63bb4b48d98c. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZTPX2541057.