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 0x06dde2b20babfc43108def0932459f2b1ec7fd888201da94b49069456ee75dc2. 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/3396404f-6c82-489d-bf23-9fa98ce3b125.json and https://artists.proofprofile.net/proofs/artist/3396404f-6c82-489d-bf23-9fa98ce3b125.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Daddy Who? Daddy Cool (40th Anniversary Edition)
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 0x425c60f5b1d7a36010025f12a6dcdd99529e76f3d9e3bfbe4bad15e233bab9d4. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/AUBM01100325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x103aea6094cd906e6dfcad000d60df4971bbb143ee089569f177b5e87792ffdc. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/AUBM01100327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67e580747c560f4b10468bb251a956c9a5004160479ee94c12dbe5586dbb4ee1. 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/AUBM01100329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6adc0c19583b4b5f510f2fb38cb7045b0ddcbd3c0231aa3ffea9835e038cc357. 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/AUBM01100332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a4ec7f9fd35cd4ad160b748d1c42d95b8fe7b791ee1cc50a1c1526d78fc1de. Chain 2 (Bitcoin): anchored in block 957717 (2026-07-12T14:54:03Z), 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/AUBM01100334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82d5eed45a6dd36e518d57570bd23bd7bc8bfa72a7bc56dd275b137eb403bf2b. 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/AUBM01100335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc97c37dce5299bb6c05d11b01cc090c44657cc0a5fb316d0081945453f192ee. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/AUBM07260108.
The Last Drive-In Movie Show: Daddy Cool Live!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x399230f9ab4279a37b39e7cfdc63de519d45133fdd3c3f3dd99d47c8e7abd925. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/AUBM07160102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6918b7f547ba00016ce8454cb6b776ec6a9bad3c1aa9d2831509ab953c69dd3. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/AUTUO0600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31450182a01f8855bc47eb67f9a8fea70ad0bc8ec6047ba67ab527a67ac238e5. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/AUTUO0600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe63e5de2fdfc3b8d0e0cb607bce4e5afe08d491a1185f987c3ad1d04359eb923. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/AUBM00460101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07e0060e160ce877a9a41c9eff8e9797571bea3b76b2a8382f70411ae9b697e3. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/AUBM07170106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x399230f9ab4279a37b39e7cfdc63de519d45133fdd3c3f3dd99d47c8e7abd925. 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/AUBM07160102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa09fcd9c669a982c13117dcaa42830c7eafe8883b9ee985a83091d538d5b3647. Chain 2 (Bitcoin): anchored in block 958668 (2026-07-19T05:16:11Z), 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/AUBM07160118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc97c37dce5299bb6c05d11b01cc090c44657cc0a5fb316d0081945453f192ee. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/AUBM07260108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac5b6e82158bb309dbadecaf2738c7c7b2bd991c3c149f30009bead517f98c27. 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/AUBM00700822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ce6d51cde3af80539b5917faac4842b4598820e2d4f9c9e8dd4687cd55f483a. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/AUBM07260109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9927e7d7c77a6a388df860bbf8172bf948066e1adfa7d6702b293344d1ad3b2b. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/AUBM07260107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x884370ce4d44843b0c2948294756e105160843c41dff62bea7e397d6a8e28a63. 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/AUBM00700351.