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 0x26b23c472b0dcf8f9f0e147508aaad7ec510c1c2a6a5ad030e475a1c424e4426. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d5bc556e-8f06-4d70-b893-c0b88edd4df7.json and https://artists.proofprofile.net/proofs/artist/d5bc556e-8f06-4d70-b893-c0b88edd4df7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Celtic Woman - Traditional Irish Ballads, Soundtracks And Celtic Themes
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 0x979a4b3c5cf096b697ea8f5816b4729b42aff75a5ea62dcf2ff5427363dc84ed. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/GBJWE0903519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30f0f2d584d36046008ee5bfdcc036952837084a0c108ae97adf5ab3a86f349f. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GBXWM1102652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1d178f99bb776dc9d4c4b3fe80ad473890997d5ee17451cb7d1eccb42eebfe4. 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/GBXWM1102660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3916addc5747be0802308e086f9f230e51fe27dc2ef9b8eff6eeca1bf70b7e3b. 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/GBXWM1102789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba06eaf214779e9c03ae4d51922480a4ce6867d60b77493c8ff419a592f4a9c3. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/GBXWM1102801.
Let Her Go - Original performed by Passenger
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e02517e08fe9c84d1a426218afd2d034950dfad9c24d69d6bf59280f09a0e5e. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/GBXWM1404764.
A Thousand Years - Original performed by Christina Perri
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1be012ef5e885bb6d5ddf656a61bed5b0a88c10a08d981b86220946448dbcebf. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/GBXWM1404765.
Make You Feel My Love - Original performed by Adele
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda61e446064093651a710dfbf5437bf118ed6bf5a772cfd32ff4ed872cd041fc. Chain 2 (Bitcoin): anchored in block 958658 (2026-07-19T04:09:09Z), 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/GBXWM1404767.
Rainbow Connection - Original performed by Sarah McLachlan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c0eb1206be9756f21e325a4d1decbb9224339bb58d597232e710684ab6e7927. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/GBXWM1404773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x443505d37a81acdeffef187f23e6422225ed9b36cf2baf402a72a0504fc2f20f. 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/GBXWM1404775.
The Celtic Music Experience, Vol. 1 (A Selection of Traditional Celtic Music)
The Celtic Music Experience, Vol. 2 (A Selection of Traditional Celtic Music)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd10d6c15125169b34998d3f3c7a63d32dbb1bbd2e36a51cd5bae0ffab6eac951. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/FR0W61572306.
New Age Christmas - Relaxing Christmas Classics (New Age Version)
Celtic Christmas - The Ultimate Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f90b293d55692259f9026b75b697f641f830b0a7efea5ab1ce3fa0e7ab91131. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/GBGVZ1112974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f9a7d4c1f4b5c363afaf8c426957ab993e7c86370f9ac411cf7c1fab696d1bc. 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/GBGVZ1100042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cac8e7e2ec8187c8376e3987351faf866cfb6b3ee0bd2a6ddcf98a424f1f136. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/GBXWM1404601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4623a7c2d1bfc7299f057d20c1ee81174e709da1e7efe1f2588f3c65a7458414. 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/GBJWE1406507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7989bd5cec7628c2a0164273b26b4ff3b2b023512d9e1635ca38a14091f7e9b. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/GBXWM1404603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56fa9ba4ddf004d2f347c2105ad7b941241ea317a850e7595410c0f2591d6d9f. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/GBJWE1406522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cdf39256579ccc04388807339e48631d091580db806cbba5b75ec8dc4b3fbba. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/GBXWM1404607.