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 0xc0a9a17e7eaa148fb6727a9c0a34583c3e46e9c17a082645799052daf09e0c7a. 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/c3855893-53c8-4fbe-a88e-6266ba0b827c.json and https://artists.proofprofile.net/proofs/artist/c3855893-53c8-4fbe-a88e-6266ba0b827c.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 0x1de05a57b0048832ffbc26b1ba4ef3de9197eadd0d2edc0e6ace355e215e7238. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USGFC0603903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd038b7003ad7b7482f0723dac2bfea6eb066dbf67f28b4b28defef9a88e9fd7d. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:21:43Z), 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/USGFC0603905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa450afde3ea277409e6ef89fa27a41b1f9d942a0a23dd401036d68147b5430eb. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USGFC0603906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x367726620a0f25d3e49be436ca6221e445e86179490ccbb63d2bf7c2fa72fb55. 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/USGFC0603907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ff1faab5eccbea8fa617b82dcb77b35d82b2ee77037225f49f99e4a7d1d312. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:25:46Z), 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/USGFC0603908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0282506f0faadb37577f6f1f6da14a5d9336e8d263a50293feef7b49c896357d. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:08:19Z), 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/USGFC0603910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x181910b8e19e8b107b8265502e334cc53607d7329b7146580ecad54e54ebc7dc. 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/USGFC0603912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94bb4b90389d7ea119057d0990ffbf7468aadc35e3b62a0f9c90be76421f5a40. 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/CA9F41300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aa9b4ff706274149566025ffd6f30afde08b8571b82f276ea7c9450d47b152b. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:06:24Z), 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/CA9F41300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb61af3780481f02628f4bb55eb0aca37649313b1fc89de09f2de22c612a9c3a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/CA9F41300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7238c92fd64612a7126e8d2f9410b3776424d3c42aa72e2f9d05f9be7e788f72. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/CA9F41300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb65ddd4da4009a5bf8fa789e53dd5fb8b4078502c6a6082ab24081325ef4daa1. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/CA9F41300020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac812cd52863c7314995331ad86028e9a58c0453e2fcddd5beb5f1be155b29dd. 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/CA9F41300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x590df0357c31c9ee876ad9ae0496b52377bf6dd7a2d1f6d2e1da655f652b5b9e. 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/CA9F41700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3564aff744b56bb4706037bfb9d1f48d7c78a774868a0149a54e02c3a81068d9. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/BZA001900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb002457f809e0edf3168fdfaf35d938fc70871f69e0df2296e7d53c4fad44f2. 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/BZA001900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2ca5042e4b3fbdcaec27006e0ac826d68397841d5be0e2ab3150774e2133261. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/BZA001900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1a20164f6da863cef5a97af09b7ca69984848eadc46cc3bbfd6436b310cd893. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/BZA001900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e8564b368778c7b173067a2e078ecd4249a3c0e4cbb9b2825a892acc4a52e59. 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/USCCW1611180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e8564b368778c7b173067a2e078ecd4249a3c0e4cbb9b2825a892acc4a52e59. 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/USCCW1611180.
Straight from the Decks, Vol. 3 (Guts Finest Selection from His Famous DJ Sets)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb15d298986468ac308b9eb83e24ead0237ba53279b0425094fd7926110f9e0b3. 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/BZA001700002.