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 0x0d432ee5a74ba9d7c3d3b99ac51ad748f691e54cddf0a70c97e9ca554a80c296. 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/24ee03ca-63eb-4940-b70f-455bf5760e78.json and https://artists.proofprofile.net/proofs/artist/24ee03ca-63eb-4940-b70f-455bf5760e78.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 0x3dc79955f21e6a56923b425ec8e8f09b310b9e5278ae1eeb8b1c6497621a8fb9. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/GBAHS0700055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe3e6e84c7180d40c66538352b58521529d1a662ca299fab071b2ba2c27fccfb. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/GBAHS2000695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc00fd5ac832fd812e6c92b759328340a10fdf15903564643f216615cc363ecb. 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/GBAHS0700049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x330cc4e01bc02aa64ae3f00f16de401fc80aff4dbbd6186df37dec614ab1abb9. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:19:33Z), 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/GBAHS0700057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52cdd8e5add5621989ef67a7b832650ed8a97263bc2e7f7decbe01a35f7300f7. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/GBAHS0700047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfb4a2e13287eb58cbdd6679f80dd7e131fdcb3029b69523a8aa2db270cee13d. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/GBAHS2000940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35305b4af16bc2404d34664bf595de5902ce9272565cb18a74ed3471b4f731cc. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/GBAHS0700044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1747efb7b228de58ffd62ac009c70d6c6c20a64526408a7aeca4b6deba5e7d4. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/GBAHS0700046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52cdd8e5add5621989ef67a7b832650ed8a97263bc2e7f7decbe01a35f7300f7. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/GBAHS0700047.
The House Of Ill Repute (Bonus track version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1910e4056514a3ea11e5978db61de53f6f06e4c6f004acd2608b76e70ef605b4. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:09:49Z), 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/IEAQL1300054.
Mary Coughlan Sings Billie Holiday (Live)
The Whole Affair: The Very Best of Mary Coughlan (Celebrating 25 Years)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x838c70fc86e6c625c574a15d15e9605994914a2590c7c34560553a957b2f2e1a. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/GBAHS0700043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x905a2ecaae9214e6351af2a44f9ed90bd50ee527db0ace03a074eff317abbab0. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/UK9AV2400292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe23ab6395e17d1f1be467e898ddac707f00cf4c8dbdef36de7bf72e492e0911d. 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/UK9AV2400265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcbb5047d14c6f22ed8f59b0094e52a3aea00953cec06ac80ab0e3296ba43e1d. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/UK9AV2400295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fd4458418acd2391b8933cf58195f47c6449c2600db31269749dd813845161c. 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/IEAAR1200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x959f8c235108d949954a5c576c5be07522ea2b00cdfefd95adfc8ab0c7ac5510. 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/IEAAR9400102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f172b56bc4d819686e92ed530a7246a432e4e000b5cbf8fc70a3c11bb8e8db. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/IEAAR9400093.
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
Forever Young: The Windmill Lane Sessions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b67aee9d9fe177133e9c4ca1586fa1015080b252de6d8c35a02bf62aed76360. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/IELZN1500016.