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 0xa8a7ab8a4ca2b016778a9f00fa4b8e968893048741aaca4c1cc2720ccf4da94c. Chain 2 (Bitcoin): anchored in block 953599 (2026-06-14T06:43:55Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0d6089d8-e19a-445a-8f78-1b7278fe50ee.json and https://artists.proofprofile.net/proofs/artist/0d6089d8-e19a-445a-8f78-1b7278fe50ee.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 0x0b40af9033677f13201b08c572436359c6bd83007f0845264639b9843c10d6d1. 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/US3DX1700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71cb37c2e4d0ca8195e1cfaaff16866dc2c5c0ac021444656fe8ef7eef5b013a. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/US3DX1700004.
Selections From The Great American Music Hall (Live)
Selections from the Great American Music Hall
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cd6e13bb2472d835a10d9163398c588ca87bf42ec511ab9b062f9096b7e470c. 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/US3DX1800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde2556e6ec659cbfe68b8a7ec083279a4c998f6e1e02cc60dc25b9493990f4dd. 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/US3DX1800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a97b1cce4805aec5f02d59e74746caef0e9edc18588ff85163b776227f9f756. 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/US3DX1800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x711d43aaa6b9c77b6cee6c43dcd56ce22efcb5711803b3caee0255e772928e6d. 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/US3DX1800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92eef17ac93ac267e8805434af271c422ba427172d1e743132bf9065a5545788. 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/US3DX1800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe35b4eccba53994ff01768ff87521d5c5c040cf03b6dcdc9d0a37cdd9e902ad6. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/US3DX1800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5e462eee4aeae86a4eed5d99ccb6c892492b897c24abdda4cd6dd0616719d31. 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/US3DX1800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07ba7754954e28f945f35ba78ed1d082b8525d8e6d81783c48f8edd4379dd589. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/US3DX1800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa78db835619344f04058e649ee55f7557085e5647824641935fad77bdbdecda3. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/US3DX2100002.
Selections from Levon Helm Studios (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4005ac2bfa2bfd55d474db871ad27422fdc2801367623d5a5efb040e3738b18a. 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/USA2P2323015.
Might Be In The Sunrise - November 30th, 2024, San Francisco, CA (Live)