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 0xb8ef6702aaf87edf3d4ef612a0ddd031ad87fd0a910e8331b72ba4195554f017. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9eb4e472-d641-40ab-8266-3f26b067835c.json and https://artists.proofprofile.net/proofs/artist/9eb4e472-d641-40ab-8266-3f26b067835c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Immaculée - Ela Sobreviveu pra Contar (Ao Vivo)
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 0x089c35fa10a24597b6136ece64b5c478ab7b8187c62da2c1d05ab43ebe7aff15. 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/BX39P2500025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x974a6be1763d9111f9e8826b82e45be07b41ae6bfc3d2451b423868277a6387c. 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/BX39P2500026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c4acf5f4b21cbd623d974f62249681634b9a7830a18ea68c1701fc95b6a7988. 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/BX39P2500027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe35346ec75bb514a7248c931db780911b91347f56672d9d3faeafc18cc6aafff. 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/BX39P2500028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0721d8d0a1db148e3d01fbc50244f82779d1ff079068e46676f79ed2b6c657e5. 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/BX39P2500029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4621e561935092bdf42a7448a0ec473aae5a306f18712fd47cbb3aa17b565af9. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/BX39P2500030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x900fb94e80d1184d420ebb8ed5f7c74ba40ae65190a837e92bbc2ca4a5329687. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/BX39P2500031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9db2ac78136078a670d32d92fd6dce30ffca7253f285334adf1e313d0a5df31. 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/BX39P2500056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b3832920cc05c06c403cf31d03db13ed59b09510dba9bd8d21433fbba998059. 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/BX39P2500058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x483e8ef5743777873892f35e71507a2a23e8c793e019be903f29f86c2a751807. 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/BX39P2500059.