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 0xf96b595e33d9bdc2473184476762ccfec27c84f165e1306984a681ab2fa2cd6c. 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/62fb0cca-00ec-440f-8d23-d712228409fd.json and https://artists.proofprofile.net/proofs/artist/62fb0cca-00ec-440f-8d23-d712228409fd.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 0x1639a70c4bc4618160225a2276ef47b01a62b2841359578036c92f69bd4f73ea. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/UST8K1689579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b880b7d7171542143752ff7cfb0c83b360806340e5b4a6000ea335267fe60b8. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/UST8K1689583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b4ed15dacd2f70a64e12dfd52e8e156c05d786ca6e62b859a8d5f7e6eea7891. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/GBKPL1786534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0e078a27510b92345191fd234463b7e641c5be6cdae4aba723fb2adf971aeb6. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/GBKPL1786535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x200a3dacd9c7b70e2942fcc1be4de58a719d6480e984a6a911731d5c5f31f161. 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/UST8K1689586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x664c7bc04ffe57477ee9e5159c6cfd0c46e02a25e602d645c82b827d8cf93075. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/USBC19704434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa583800ac4bd4f17dc06f30183195dbd5b02747182edf1f2059ccadfe25be840. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/USBC19710041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0a1c4e9692ee9cc0cc042fea184a55a4cbfa642ffae10ac9718cd2c4eac66d1. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USHM20469370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb976fe4f4cb25afc8a0a2f4e68de19de69d80380466f7735cf7a085334852cd. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/USHM20469372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4bd70cbf4d075cdc5d5f3aad42345ae6aa1f23440484a6220037867048ce6a2. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/USHM20469374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2b6ce0df8f052357897e671faa0f600412cc33b982f6d0190f7d92bcd914e1a. Chain 2 (Bitcoin): anchored in block 957647 (2026-07-12T03:57:41Z), 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/USHM20469376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75bf7bccd8bece93c37c908e20dea5fd4e810cd2afbc739b5e22decdd2c56c37. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/USHM20469377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd54f0af51ce7589b262b0e56520f6094c899dad10e9f4c82e8751b96baf2c0db. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T05:56:21Z), 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/USHM20469378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b7610f953d8d50d65213ca49df9d0303e213d34c5b3eec92566ef81d2fc67d5. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/USHM20469380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7ba81cb68509cff9a88877a1f8dfcb62c8a26ca48374babe79a7a971ffce340. Chain 2 (Bitcoin): anchored in block 957647 (2026-07-12T03:57:41Z), 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/QZ4JJ1602239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78eb33f34406313c3f147d5e8709f225c63a8a3d85e3112b013b308451f2be2e. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/QZ4JJ1602240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1534ec0e10d4caaf4d9edeffe456d775c105b95a4b0c39517783789c471036db. Chain 2 (Bitcoin): anchored in block 957653 (2026-07-12T04:35:02Z), 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/QZ4JJ1602244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5438cc5a2b340df5379fd624bfee685a0288cbdeca5c4d9f0345b6f1c14f31d. 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/QZ4JJ1602245.
Celtic Lamentations: Healing Music for Twelve Months and a Day
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c6cb23d1484e25967c8d8f0c41adf186b9829172f9632ad5cfa4a9d492771e3. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZ4JJ1602440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadba6ee772600843d03376dad8ed5eada957e1430b0f615f1af32eedf8ec2b52. 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/QZ4JJ1602441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cf02e8199452b6934183e7666049b86a8cecf13d839e5efdb1c13545b3c4320. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZ4JJ1602442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x533b756d95713631e53b55df9b2b928c897f8209789cd5810b45b665f5e547e7. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/QZ4JJ1602446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x451012b4bc3682348a229cd208191310aef67051c5fe3088f53dbcbf0c419ecb. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/UST8K1683999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd534c8f2fa9e8887926d9d344718b1e658667d3a3ca5ed78e2bc43283c3d55d. 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/UST8K1684001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a432dcadfb5db5106bd4c796a20de696d7086156b9bbcce3fa41dc392f10019. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/UST8K1684004.
Close Your Eyes, Love: Lullabies of the Celtic Lands
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b5843a80ef3c1d8c116071273a53488d6d7bce5ba787efb4316b8a459cb482. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/USCGH1267482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fae096be4568c192b70af6b7eca8a32a65f3b2a7da7d4bb0d6992553b272eac. 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/USCGH1267484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d393703efabd692a7054829511798630bbfbc891fc7e7671df83c12e06dddeb. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/USCGH1267485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0fa7a4a563ee9f70c0a040319b5bca7320a37c3da015ea25cf2da6f89dae502. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/USCGH1267486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05592e6f631b752822ae7610f3fa6392aef0382d2fee287cd7ce872e4fb2de32. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/USCGH1267487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd71016670b008dd2ae7f6d9b89c123390d441976a02c6f9287cad2ec6cf2968. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/USCGH1267488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77e67b47be142d1d97937a135a733eab6acce8cd4202e75c6476e387ca94e816. 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/USCGH1267489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ea46fa9d6e805ce27cc65ee5652a9b82db02794251c5ecb2993a5bfe0a22260. 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/UST8K1684122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x124b958f908d8794f35591e56efd4e7041da7a02f493bf54a8211ce89ead066e. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GBKPL1897987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4da687f76f41329d7380569a56da96469cf488d9408c80f67d818dd864515595. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GBKPL1897978.
To Warm the Winter's Night: A Celtic Holiday Celebration (25th Anniversary Edition) [2021 Remaster]
Celtic Christmas II - A Windham Hill Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x580daa1f658b8cbb76bfafff4290ec8fa625dbfdc693a105cf20d48b7643c82f. 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/USWH19601183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x580daa1f658b8cbb76bfafff4290ec8fa625dbfdc693a105cf20d48b7643c82f. 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/USWH19601183.