Lake Isabel main refer to: Lake Isabel (Colorado) Lake Isabel (Flathead County, Montana), a lake in Glacier National Park, Montana Lake Isabelle, also called Lake Isabel, a lake in Dakota County,
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 0x3024998e50a592dcf24db0a0b5d3bd378a0b1f5ca18963ea3f208154ab09772a. 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/9b38d295-f3b3-4b2f-bd74-a84db6bab4c9.json and https://artists.proofprofile.net/proofs/artist/9b38d295-f3b3-4b2f-bd74-a84db6bab4c9.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 0x5e22c6282ccf928d29b37347de56d504702fe64d448137e1c3e3b957dbc08354. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QMPKX1879131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83bb1c2c976903d1ff7ce1d15971c7f1c458c376e2293a70ad6db68668caa264. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/QMPKX1879132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7ac6932485a2168894f72ca65cd232ae1b432c2190bee578b89fd0c8bcfd252. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/QMPKX1879137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93524b707580c6fc8babee9565cdb8df253f4cb9dbb7c9900386299b58d3d000. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/QZES51907974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbeb21c5cb9f834f1b1a62b4bccc7ab42ec396110106a878a1b7117fe71e6ab4. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZES51907977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc198a4adb9e1047dc48088ebae71aae56561a2c899322b2d67cdcb37f79f39e. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/QZES71821944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x595fba28edd21e2cc1a631aa37ad5c74d76fd1384e7ebe5e8f649952bbc51462. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZES71821947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb5327c992145cc89584bedb9c5ca04a4245b5ecf888871cc82749069c2197c1. 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/QM24S2011356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08072e422b269a12dedf67dd65bafa4ba7031a66745be0a8cd464a7697a01f74. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/QM24S2011403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x871b8028a9dbf18649a4516d7f95b5f6048f46e640b2eb98e0a7f00b8d5b1aaa. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/QZHN62139153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05d7a59972b8b87fe7f353d37d08539353798c568e37eb8bb8ac87be1e277da6. 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/QM24S2008058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22858b7dfc438bd695182955cbdc535befb4cb5b0ccbfc69efe422ef9d80c255. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QM24S2105675.
Interlude (Reprise) - Lake Isabel Rework
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3087df78a46d75e059a846e2faec5888cc6445c23bf31edd71db64cc569b393a. 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/BEDV42000010.
Interlude (Reprise) [Lake Isabel Rework]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3087df78a46d75e059a846e2faec5888cc6445c23bf31edd71db64cc569b393a. 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/BEDV42000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa256c0e7ad4b359263e9eafb88d3b79a28f308ceb9cf0e34edf737520fbae171. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/QM24S2204270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aaefad83e8209a52f1b8edf60c05fa465cd32cacafa767e80d6a912fe9fd572. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/QM24S2101766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b59b0df59190315facafa871b4bca2f8cb941e2875c54487c73e2ee0c73385. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/QM24S2301154.