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 0x84cde7ba59c679731a93fc81e195bade3ef121dd3b824f9d6f5a2004f3b1a54c. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/78206c66-48ed-42ea-994d-6691e5f37328.json and https://artists.proofprofile.net/proofs/artist/78206c66-48ed-42ea-994d-6691e5f37328.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 0x87390f4dc13d8e3605a101232eb46b32cc73e4fdb28bea988f88a16cf358260f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USCHR1376044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcc696f7c56c39ab770e13ed5093c5aac46640c90e4aa9483d6146672f89e33d. 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/USCHR1376048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x801467a53899c759e4be79b34825c1c91a11ba833c610a80c6c4db575ca3a4cb. 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/USCHR1376052.
Stranger Than Fiction: Rockabilly Rules Again
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x625c08a5182939f0c6fb2f249fae377cae17131c2c3aa804aed6fcc530d4fed1. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBSUW0738472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbaee18619d1378ba660cb63b8faf4a268dd536a52ae63b6a8baeb9264140b5d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBSUW0738484.
Keb Darge and Little Edith's Legendary Wild Rockers 5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa4435d5c55ed6cf2de6081480ae35108632c158e1e8cb2e6c58f7c20fea5dd2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBEQT1400783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf31a888f09c9c118f978f45e2d08400ea5da28e728e74e1169a8511e2fe79aaf. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBEQT1400475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52446e63eddb9222b2095b9281af0bac409bfd49801634e26beb8eb7aa5580bf. 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/GBEQT1400476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69fa6fc3aaa3a794222a89ca661ecd53e206d901531c4caffad05222dc5cbf1e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBEQT1400478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c6669620d4b183d497c594fd9d43f5d64139e107aef50d01afe28a742a3cdec. 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/GBEQT1400487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf52e7e4535be3bb6161a42f8bb015094d39f8be246806cedcd805a7f2ed452d3. 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/DEC539800181.
Rockabilly Dukebox, Vol. 10: Let's Get Wild
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdbace08e7dd1c315d210d6ad36fc4ef89197e6291f7444749508dd7cbcbf731. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USA371637754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb952a4b2e95aaf68edf41e5aca143d9541f5ca83331111e85888ec1ddaec2e1. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USA371637756.
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 0x34fac9e5acdca96ec98c65c3312e9351ea5d9c56c5f6c1c105ba7ed3c49a3d49. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/USA371637757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x964a5db5c8705de06f3bdebfa3be6237b8da3171bf958dad9d60acb64ca50e57. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/DEC530010751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff27408abb977c36f757efbb4d1338d56e76fdfb8c0d46f352f0320a31f68cf7. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEC530010755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16a269317018c1fc414a8beead450e803304e172f4c382aad33b31d808a76344. 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/DEC530010766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee4f4800e03f94fb02b7be0a30307e9249971c38eaf8453e5c47e5a253966f3f. 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/DEU471800378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd75a731be111bb1aa4e2e79f0df09f83b90f8663f95f407fdd09fcbf8c14d42. 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/DEU471800380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7d39bb6b0ee38cb68f74a068899354c3c991e5cf52199bc0a35c0fc9fbfe14f. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/DEU471800394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b890013ee57474d0af2f0f3071064dc8aecfea46ebfb0407c798f22868c29c8. 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/USA561206781.