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 0xcc241fefea021f9dc35262f8a8888441409e25fce51a2670a5173fc1abc78ee8. 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/e6b037f6-f25a-4d7f-a76c-da37b840aa01.json and https://artists.proofprofile.net/proofs/artist/e6b037f6-f25a-4d7f-a76c-da37b840aa01.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 0x8f33c86023e0db1609a34c5da8ff0412e458d1477bde84c8d6cb2f83d55c1c09. 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/USANG2277190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9a7e537c539bdee6aab69157af3faaf7ec1fc1f67247385e4ea6775e13ee41e. 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/USANG2268997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd712537df1bab8078400cf44a6ae9ea75e4d4f551247fded6d33f610fdc0c5bb. 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/USANG2270814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x962df5bd63e40f4ebdc73d49c3376e4dd4bdd3b1f634915a6f0d11ffa295bff6. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:09:29Z), 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/USANG2267567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x940639299b228fd59fa91c5c07d87ef5b7eda7d11737539beed3d1183a9aed70. 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/US3DF2251726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x893bb9e3fc6e460aa3ad69d2a6a882c5c15093f0b427227c9aa5e4190fe6422a. 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/US3DF2214806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bb90f395a4ce75db5bff0816ec6a705ae855ccd0c241145b35202b301517514. 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/QM3DF2146586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc14ee07ecefb9bd7b8ddb717a319980715eeb46adc52065bd127f5aa42e3999a. 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/USANG2160232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04eebc9b18380f1a30f1a6e5e10c43ae88e9676dbb0b04c58c784c437f34ab6f. 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/USANG2103153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad472c27f3c3ac16ea810b0b8d6ba52be5e1138104570ade08eee38cfb05272c. 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/QM3DF2004669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ac5bd1bf0a602dd6a2b6b524c448a72273cfb3e28e839db0dc74c69f10dc87e. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USDY42094185.
Pensando en Ella “Ddc In Live” - The Flux Sessions #1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea3e9bc50d7d5be5987c37bf45c9a4068b8ba353e7105a09ab3bf739d549f4b4. 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/QZGLM2341749.
Negrita “Ddc In Live” - The Flux Sessions #1
Enciéndela “Ddc In Live” The Flux Sessions #1
Acompáñame “Ddc In Live” - The Flux Sessions #1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ea42dae9dcbef88e9ccb06306b2b94f8bea91eaf40b589f97ec5b327c081a8d. 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/US3DF2439650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea5e0783e0e76186b035c408e18deacb05a84721a61fbff1cc7b6edfe3824e3a. 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/US3DF2065666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71f9f938d7d80a86dff008b6550f7eece0cc2bba7c7750d7cfbe82f428ebfcb4. 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/QZHZ32161896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2e88aea29b519aa0cbfdbf1ae4fdd6807be305cabaf77d7401cfd922d6733a5. 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/USANG2472546.