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 0xe78a4232dc8a924171d947cf0b5edd38c3514fd46611c8c160106f55025eff62. 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/8d5971a4-9895-4c3f-a07e-02c4c726c912.json and https://artists.proofprofile.net/proofs/artist/8d5971a4-9895-4c3f-a07e-02c4c726c912.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 0x765be24da5e99145b7fc761f832af7a3bf103dafbdb66b313f50f19b5afc22ac. 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/USCA20400684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x437a724bd1558c018c7e4d22d27aa6e1849eb0303513a6a44cdcf8695e19ca30. 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/USCA20400070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d8fe9c43d7929585a4c82ea428bf2d7a8193ce0bf1b657c6053c27044dd9a8d. 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/USCA20400071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9829c6bad65761576623028908cf617f8397567064ca00633adedda0c459db5. 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/USCA20300619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x780bec488d5eddb6ec07441e163387943003d96ecd623b31c011ef0877f58cdb. 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/USCA20300616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa065b697553fa5035e1fb4db61f6e81170b394a36647468807286d3d95f9e8de. 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/USCA20400076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7637c24271c5d15f8f2f4a9ff29ecbe2478795a0b92a864b9138d2daf8ab21dd. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USCA20400679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68067b15f41d5866db6ad29fc866383799364bfa8fad7668e091da0d050cc9da. 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/USCA20401014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd76cd7f10b6cc1be5e97b9da99fd5ef0b965e0e723d193cb49c6c3a9dd4b99c3. 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/USCA20400072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ee7d22bf1c4eb1c12e99ba6fbdf906d0bdb604a37922e2deffd6e9aaa9707d2. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/USCA20400077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6e9872bd31d1ed20bed9f7fd0c9b89a4b08e673b3640385b375d70f7efecad6. 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/USCA20400083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63b445bcdcd73f2e346683e4ad661576e97948ff626085b0a7e03f6d3ad3e745. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USDJ20110878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2b298293cbde41afe801b21031bb13435618bdd5e8fee88740b200e42c249ed. 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/USDJ20110894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dd9b2f08ad0e1d618d13f99cf75154afdaaaa928c205d0b5b65cfe6aa4c4fe8. 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/USDJ20110875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb36ac99fdeb4540a4f46771022f11f2c6b3294345955713dab0d3311a755be06. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USUM70603994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1d2f95f4b58e38c845a428ccd557dabdd624c6714d99e785bbbfdc5216e8254. 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/USUM71003872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38662c947719464eafe105a0c9328431a07205a5c453156661d7c04f44bbcf4b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USDJ20300935.
Ludacris Presents...Disturbing Tha Peace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcb564664a1fbb9033b67a1ec5df4850164215036b2b4331f8cb8b3840fb3214. 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/USUM70506892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0444809f35aa6b2c35ea97ca614f8791acf8f47eb4fdf868a72205abca682ed4. 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/USUM70506884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6391397465b4acc05abebeace330664c6d2cf0993e3d4800764d0cf5355065c1. 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/USUM70506891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2b298293cbde41afe801b21031bb13435618bdd5e8fee88740b200e42c249ed. 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/USDJ20110894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebbe9ff384b82a58599c02edac1bc579070edeebfa3c4b49dd921f437d64830b. 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/USCA20300291.