Billy Hart Quartet is an album by American jazz drummer Billy Hart recorded in 2005 and released on the HighNote label.HighNote Records discography accessed February 3, 2015Lyles, R. Mark Turner Disco
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 0x6f6d91dddc46cf9d853639f9decc6f0f3e10fed3edd2d9df5d0bb6b4b66a1492. Chain 2 (Bitcoin): anchored in block 953701 (2026-06-14T22:16:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/755512ab-3c83-4cab-8f4b-63f61fdc9314.json and https://artists.proofprofile.net/proofs/artist/755512ab-3c83-4cab-8f4b-63f61fdc9314.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 0xa55b4e27a76f79904c7892522fb1d325e761068eec6b3ba82e81235a7cb71e04. 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/DEB332174807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c90c07cf109c5c0d87ca66383bd1bd28363aa8e0e9fc9a8c53e7aaad0a60c26. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/DEB332174801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x809bdb073343a429bb8c30f8620bc390026ac38e6cef60ac280de0b1617236b1. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:26:42Z), 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/DEB332174802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0b926bbed9a7b7ba08570cc7d1aef79e3fe413c91211614ffd389e89e5beb84. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/DEB332174803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46c0e9ace609b01f4ffc6e70e697fdc349720bd7f4e59620b9dc18fc23caca72. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/DEB332174804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9846b118a0a734b32e7c72e579252effae0f73782962ef486d3dd0937169c4af. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:07:45Z), 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/DEB332174805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2f43f7e95d37e7fac2e39ca8946fdea767997a02bff3f18dba828c5a7830b7e. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/DEB332174806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa55b4e27a76f79904c7892522fb1d325e761068eec6b3ba82e81235a7cb71e04. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/DEB332174807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd107e74b5f7030d06ec7088e2130b39c77260d779e1ed0ad42666922521d775a. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/DEB332174808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeef730520c57f1c38ec6dc270a316d74269215a7bec07b347ed5edd0cb6c4987. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:55:33Z), 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/DEB332174809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x245364a71738117e4c4608ac97fcc008d4f40cc47c83f7213ebe3c8bee264cc4. 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/DEB332174810.