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 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 0x63e8c328accebaf03c5ba8438e7676b34cef04538bf8ba332e038b2ff0d4a752. 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/fb82a37f-5fc4-44ad-a4b1-ebb2dde89ada.json and https://artists.proofprofile.net/proofs/artist/fb82a37f-5fc4-44ad-a4b1-ebb2dde89ada.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 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 0x126143355e8a95189093ad6b05eb927a6865dd0a6cb5797d8f86e94ae05c124f. 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/USGVG1400006.
We Won't Stop Dreaming (feat. Benji Jackson)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb35e2a533f8d44628fadd5123368b8cc8459c5e700b52c09015a15bad8b53237. 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/USGVG1400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30997ec93365b7bd93c7a1ea5b4155e4c34872d49d0acaf95a6361d3918043ed. 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/USGVG1400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa042859f045ab14230ee24a1db4dcd5bd6ebff35898f7424b4bf9f35cfb787da. 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/USGVG1400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4e4ca3772f2e5e525db71a6c5b01a874f20bd4a8544c7d68f673a7bc7aebc94. 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/USGVG1400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cf23aefdf2d606613298e54129446d05bb97dce03d5958adb8389350199ebee. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USGVG1400007.
These Are the Best Days (feat. Benji Jackson)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1a04df6926402be74f5c937582b16a87272d5ca3aac66615840cf0f2de61867. 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/USGVG1400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3462322b18a617657cd619798c7fd8b14a6c614ba15861a0f883d75d8412c6a8. 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/USGVG1400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2adf47dca11a5a4e0160dfb284f83a4487ce9e38627d5c4d415294480d58a99b. 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/USGVG1400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fe04da2d5193dbe1d4ca6055879ce2a4ee57d9b5e0c7b25a6c67acd85f24714. Chain 2 (Bitcoin): anchored in block 960191 (2026-07-30T01:51:26Z), 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/USGVG1500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c54975266fd56991c887705ddfd8fbf9874846f63b8aca8a50c5f0c89b9547c. 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/USGVG1500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadbdcfc57318dd003428b306305e5cc9d2a74b0517dd1b8abf56efebcbbce4b6. 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/USGVG1500004.
It's Good to Be Alive (feat. Benji Jackson)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18d830f9cf8dc237c7801be135783245fd90b1054fd48e61bffe8260d1026546. 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/USGVG1500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7814e36d53b63295c2963b3d16283f27d1b5f23cc0fcde23f054a0ba33adfce2. 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/USGVG1500002.
I Found Something I Was Searching For (feat. Benji Jackson)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9f4e9e5b5e25822f5c60b6ec32aa749a359a432d33b940bf775e1b413596190. 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/USGVG1500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeda589072dd399fe23a25c96c158b08bc996782f5cc539eae484ad1e8013dda0. 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/USGVG1600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1fced72b985b54d76c3d50e406136d7dc9261ca825b2ab1243f31f9cfc3c22e. 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/USGVG1600002.
Wonderland (feat. Benji Jackson & Alaina Stacey)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9019c515c7457ad36e42935fdf2034efeb316c8d6ca0a8246ceeb3368066b0f3. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/USGVG1600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x657bb0184418b151256ee8f44f0fe6eb457325551c74e0e4e6cb4cc556bda9ab. 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/TCADX1840615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x212891fb782d569b9d0e61ff7e4e8b9c0053cdd0a783069f99a8a4275b029358. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USGVG1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b394ecddc5d88baadd2f99d1f5717a0fcb99433b0a2a6b8692fa2779b047395. 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/USGVG1900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeae7086626ccb313c59ba6d8af4f3d203bbaefc942e03b20149211d30579602. 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/USGVG1900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc4bc30a9dd10322df189c3cab522381fc724dc8c00951f06c31c72b2ae2989c. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USGVG2000002.