thumb|right|upright=.90|Alisha Gaddis and Lucky Diaz Lucky Diaz and the Family Jam Band (also known as Lucky Díaz y La Familia Música, and The Lucky Band) is the husband and wife team of Lucky Diaz a
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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01e1b7d3e566143a84b572d5035f01ebb03beed4cc5027f7dcd4b77951aa6750. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d166bf05-6125-4f96-87ce-b6aa1928f847.json and https://artists.proofprofile.net/proofs/artist/d166bf05-6125-4f96-87ce-b6aa1928f847.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2703b719eb8848206100d2d6522bfe3bcf1657cdd76dce28b382624871c37eac. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/TCABE1256693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7c838a86bf0f78f84059989000a4a79790d7e0ed7372259ceb89aec47991833. 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/TCABN1339102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x106e37e53caacdb0f45377c55377219b177bf727be9dad393f2057faf9bf09f5. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/TCABN1339103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c872c9cc50fc92fa72242233bd27de73defae0fa3562701f9be1c3d787057e8. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/TCABW1442118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4e4245f463236e5d3066ca3798151720bbe155f2229b4d2d54ec282beb41cb8. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TCABW1442115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fdfb05669944c30c0c7aa29474376063b3ad55609057e4f07cf8b45cd708487. 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/TCACG1574557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24d7e13270a355d36cd9d975c6d9e6c9dbbbd7fdd799fcda7180f89a089baa20. 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/TCACG1574564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97af799b2ad0b7043cffbd98fe3bf7c9194f5a898d1648edeab13a50b41632b0. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/TCACO1687142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd520812870af3d5f11c7b21978b6ff51bececeae4a4d0f5e9cb05e751637e635. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/TCADA1797451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7292099f05e894d4e826aac1a03a87a83c7e0a4fcbed8294936a49c74d19da11. 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/TCADA1797461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x959023ef6bc44438935b2d5d9618ce9edd6ca1afadd0dc0eb9da3fb8d3b6c692. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/QZ5HC0802401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a5a0cc488d2ac4a7009563ec58c93ab15888b5f5651fdc3f83046fc28638c81. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/QZNJV2426372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb7f17005ee0e9723847436025a843700495ee1f33f78c61cb3416ee6cbd7eb7. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/QZNJV2426378.