Mariel Buckley is a Canadian country music singer-songwriter based in Calgary, Alberta. She is the younger sister of singer T. Buckley."Calgary artists of 2018: It was a good year for these wild roses
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 0x0e6a0975c9fde2e913eb2514b2412595d1d88065afd402c3501f8d92c60f80f0. Chain 2 (Bitcoin): anchored in block 953746 (2026-06-15T05:25:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a4d264fa-6d4c-4f15-9c1b-dbdfabadd36b.json and https://artists.proofprofile.net/proofs/artist/a4d264fa-6d4c-4f15-9c1b-dbdfabadd36b.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 0x9ed23a7ebe0d2ad32722c4dc5f307c4a4cdb6eb380fb9d49b13829c140cf4b77. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/TCADM1838053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecaaa44b80b065625a433eea1ed373691197cbfb994a2ec1cff28a615aafc716. 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/TCADM1838057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87e5ad94523fb9566c6bf6a317840d520fc1a7319f0926993bbc5ea79a0650da. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/CANRM2200082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91f43141ab4545873146d5f6059d0f1c1f4d6f0b27b00bfe1c680128be2db7b7. 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/CANRM2200075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54b82646f0c0f1e05af3bd84ca010c9f2cdfb2c0d06245dec1258e09daa769c3. 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/CANRM2200079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1366daac1ac7409cfdf5fb4dfae4f9f63ea7239adc7ea130a084cc776648da45. 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/CANRM2200081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91f43141ab4545873146d5f6059d0f1c1f4d6f0b27b00bfe1c680128be2db7b7. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/CANRM2200075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54b82646f0c0f1e05af3bd84ca010c9f2cdfb2c0d06245dec1258e09daa769c3. 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/CANRM2200079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1366daac1ac7409cfdf5fb4dfae4f9f63ea7239adc7ea130a084cc776648da45. 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/CANRM2200081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87e5ad94523fb9566c6bf6a317840d520fc1a7319f0926993bbc5ea79a0650da. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/CANRM2200082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe81be9c609747330f6fa84b80c7c33fdcfd671c1f009592f980332e4d5cbaffb. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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/CANRM2200161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe81be9c609747330f6fa84b80c7c33fdcfd671c1f009592f980332e4d5cbaffb. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/CANRM2200161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a34fde929ff01be8d0e28cebd70191e461fc76b44c139fcff836cd6a62fb0ba. 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/CANRM2500443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x009fb46df0ad57e6edd6f3504df598b3190703bc628928b02c592d7c16e46bc6. 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/QM4TW2092683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x932875c7d45203e808c97c5639e34f41b50564f3c50846b581796002d0acbd06. 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/QM4TX2003780.