Smith/Kotzen is the name of a musical collaboration between musicians Adrian Smith of Iron Maiden and Richie Kotzen of The Winery Dogs. History The duo met when Smith bought a house and moved to liv
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 0x2654815f7a744f5c44f478926f230e46975fe524b3ba1ad3ed52fb8639561500. 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/7e682b31-c625-4a3e-95d2-3ba4eecc4ec2.json and https://artists.proofprofile.net/proofs/artist/7e682b31-c625-4a3e-95d2-3ba4eecc4ec2.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 0xe56e242bfb7febb2576b8a3f7602b14383a6b8a5de8f0bc779d4f3c7e0ab2ed9. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBCHB2000029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72533600e9076770288f6017852b90b26dc3f7483db3c44696011d8e0a841969. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBCHB2000030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf124b306b318b153c6ec8b6edde1e1c49f142fa4414edeb50a0f8c8bb4ebba54. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBCHB2000031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d0bdb8f0d4ac6f09492ec8c575ac4af614f14e8a2783156ff0f0e1abbdb13c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBCHB2000032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b1253c55489726257931ba7be5cdb59065b68c9e8319ab10b28a9a732d20414. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBCHB2000033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddfcceaebb8958178693d7a7abcacebecd88ee70d2e1e2169132765baa90e073. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBCHB2000034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe791ee27de87ca886b43a564d17d3596087931a8727bada7becefb875e02289. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBCHB2000035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90ee2cb97f6c0ce6e4a0e7934da5c05867824dd8277666f0ef59db77c34220fc. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBCHB2000036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11da76dbfcc6fd1b587274eb9b7aeb272b39ff4b4c32b5c8bd5115b8429580c8. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBCHB2000037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x442fd6193ca897ca56f869cbaa2fc0a742e9108cf1a6bd48dd947cadcdf1f04c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBCHB2100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf24656315adf0ef8a9f864f2e444b35484033d0ea9a99dbeb72b57f32677018b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBCHB2100015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ccecf98c6d860ea3d70e92b66c2290d2ef03a531ab86a3c0c0805d58c978c2c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBCHB2000038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x167f1d0ce26f72c69b0671bd87bd1d42f23a504989ce275ffebe8027923d8393. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBCHB2000039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b9d01310633327d8957592d6ff6a2bd7ee8f0bce5d5839667d708d0a034b8d0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBCHB2200020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07e58047ebc47eaae8fad4ffa20222839874ffead376bdc7f431d6063fd29dc7. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBCHB2200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9268dc752ec4b0d02fbd33cbc5aeace310dd8df69c3a2d6c0c089a2c88534fd. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBCHB2200022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbc807c9ddeea8b62790fdd2261eca21ebe7ba57073df7c08d7e29013a8e3417. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBCHB2200023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf38d7d9c6117e2bf0c2b2e9fd0c86f29f1269a3be7b02f06f1c985527e2f09f5. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBCHB2200024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x442fd6193ca897ca56f869cbaa2fc0a742e9108cf1a6bd48dd947cadcdf1f04c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBCHB2100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72533600e9076770288f6017852b90b26dc3f7483db3c44696011d8e0a841969. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/GBCHB2000030.