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 0xb849848cefcd465f9fd2a7e7e09c2390b981f725ec07c1955ec68df87d40668c. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/09ffc8ad-bebe-4d0c-8607-7bc6b8e59101.json and https://artists.proofprofile.net/proofs/artist/09ffc8ad-bebe-4d0c-8607-7bc6b8e59101.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 0xea732a1f55e4291c807ce16089b6984e19717afbb101984b126de41537e5f688. 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/US5UL1226213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7438f1b74ced3a59e1a6e1052ca3783dd9aaaeef081f212025e1a6ef7874ca49. 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/US5UL1404795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b769957f6ee593e097dc444aef62a34ff0d9751a33b994a77968ee3d5db1e3e. 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/US5UL0726685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaba4935047ae27dd866391422bc8e79bedd3a0b4821847751df011282bb770ca. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/US5UL1103484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b82aa8d124c7cd417e59196e511fc1f288e53b00e539328c299de9cea002a32. 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/GBPS81500701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15c599dad68fd18673bfc5e50697af751735e17adeb89cd342c1c65094870040. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GBPS81500630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda668b3fc3a6a3f9df18af7d59315c51d6122eca76a547f52106bbb1250b7b1. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GBPS81513109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd83effd9f35a4ffbf8b85f5b423f50336b0afdbaa9551aeafec2d312b4ede6a1. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBPS81500632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c69c0adf2cd7787df35d14ed5c7d61357f77429beb480f67fde1509976a5b9b. 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/GBPS81513111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca9489920f5d707eb48b37315d57a730b9dabca112c64f8f122a7c3dc7de4c48. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GBPS81500659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c337ef6c4f98a287d162b4f305eb218b8f40b71ad343e95a1cc61a1a6ddeed7. 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/GBPS81513119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb067023f694fc4d1df91c582960c55a0dbeb51791bfd14adff6913a372315578. 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/GBPS81513118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98b1c3ea2d1a184d8dc4c6722ac4fab37d37505d36364ba04af993e337c118e9. 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/GBPS81513068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x255f2ada1bd2bd31908ced26fb124b1306a50ce197a6d841d0707ddad5dafa94. 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/GBPS81500690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f614b87cf5468242e9871894b1342f6eef46ba72c34e3ddbdd35d315b808cd8. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/GBPS81513084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd65c4c8bb9625f9ec6fc970c7f3e7cade96bfe30acb21d4cc0a2a07cd1f4996. 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/GBPS81513060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab7bb5420bbdab7fbbc68920a6d33edc0e52f6fe5eea94b4ad4740ab306a014c. 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/US5UL1411199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f85505b85c431f54993ce1f2541e8191518d4b5864394bbdb8d0fd22813250d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBPS81500634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda79a1006a4eb5f8f7387a30729c7996fa7a7c6e6795e11d193476c0c78ea894. 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/GBPS81513106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98b1c3ea2d1a184d8dc4c6722ac4fab37d37505d36364ba04af993e337c118e9. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBPS81513068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc02eea1250a6227375105695a373282ead495f3f8ef53b48bf0e092b705031f. 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/GBPS81500669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1d1ec22bdc8a1f68b0de2dff5e1279511511e0e560ec85f73b73cb99374d091. 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/GBPS81500637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x534611ccadf6705dfc35dda0462a1a0cd6e64a59a35b3fe6b607ec4429aacf91. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBPS81513088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f614b87cf5468242e9871894b1342f6eef46ba72c34e3ddbdd35d315b808cd8. 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/GBPS81513084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda668b3fc3a6a3f9df18af7d59315c51d6122eca76a547f52106bbb1250b7b1. 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/GBPS81513109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x780502a73989426de53a0140790ce0ea324c2a858735898e40d790b5e3f897f3. 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/GBPS81513067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15c599dad68fd18673bfc5e50697af751735e17adeb89cd342c1c65094870040. 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/GBPS81500630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce2acdcda257116d9e5980a81474694001977051bce6d8decf9d54a0fe2a4229. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/US5UL1215735.
Irish and Celtic Instrumental Favourites
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20f2ca7922c422df5ff78e314e2f98339257fa7cb0bf8a8d294cd78df90ac6c1. 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/US5UL1207337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd76906cc84ceecaa682e1b7f7ee58829dfb46843c0bdd5e7ed2a84abc0f0b1. 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/US5UL1340341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50af772136c33885d80de25fda4542057131c61a7dbd94ba7618189b4628c113. 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/US5UL0740814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x762677ea821c53635269accec220ba21d546d61433aa60142238d0b8950fc429. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/US5UL0709531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6947420b94354782d4c6c6b25d6f10edbeb0d380833cd8db107febf9b3cffdf9. 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/US5UL1216969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aea1043f7f216cb70c16cd3a64146b5c1bb7260e8679718b567f30798e219a1. 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/US5UL1232455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x034eea2442640039e735282ad6b2bce9e277aff28b7d70136ad38dbfa7690efc. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USY2F1200905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b863185893d8444a3533e2a3e5ff27da193d8e4eba26ea7dca7d3b457ef9bc9. 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/US5UL1103813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccabcc684ad94afabb1dd5be33f09d84495190a37141ae53d672605a5e7860c3. 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/US5UL1435129.