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 0xa48bea196d85f2479124f3fa29fa2e30649ed2c77924f2259bb721393230f369. Chain 2 (Bitcoin): anchored in block 953645 (2026-06-14T14:31:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4011aa2c-add9-4a66-a29e-5fb28046bf86.json and https://artists.proofprofile.net/proofs/artist/4011aa2c-add9-4a66-a29e-5fb28046bf86.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Psalm 95 "O Come Let Us Sing unto the Lord"
Psalms of David, Vol. 2: O Praise the Lord of Heaven
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 0x6754bce48416b86a2bd50c122b1c88532b4f0b6fdc62702e388a486435d682b4. 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/GBXUX0833701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b61004eff9bad7577c25104b4217e9487c66e1658deef5bb9d635f893df228c. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/GBXUX0833705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cbbc98306915f55a674ae9c5a19da3671113e417263e9640ace9f3757284e58. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/GBXUX0833707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x539288c27757d66e77e23d66df96065d44bf5bb67a59bf043aae95ccd9e02b30. 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/GBXUX0833708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x580e636e19e3ad65a91977142242d2260fe52623a1aab315ff679a1ce4f54602. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/GBXUX0833709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc37c0f088cf90a124c7cd37e44c4d775a3afa4c36162b925c4b5927082a1e45e. 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/GBXUX0833710.
Psalm 13 "How Long Wilt Thou Forget Me O Lord"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00aa438c0bee4f2867b94ece93bdf5b638b74d7a58ae731737f3194bab397a63. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBXUX0833713.
Psalm 91 "Whoso Dwelleth Under the Defence"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9866546080605c9d22088f0ebb5709ec36c33d5bf18bd6d8ee4b800eb463c56b. 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/GBXUX0833715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2400f9835e787dd1aa86233692e1cb8f00cddae2f2cc2f2ba412b8a78cd1adb. 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/GBXUX0833717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81fcb3f15aea3879b61a48ee3b64036a9864803017d6a8aef7b8b9d2d3f880a1. 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/GBXUX0833718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cad45f43b388a3cd620567db81315d60aaaf8a5049e6ca78f8ed496ce3650fe. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/GBXUX0833720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecc89510cb8302d5fef44120acfb9387ac5ce7e7583584c9d4b104f453fefd86. Chain 2 (Bitcoin): anchored in block 959146 (2026-07-22T18:04:53Z), 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/GBXUX0833702.
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 0xa26e6c4c00ed0996a0fc7a2190e93d4ee1e33251e23287cd7f8b88645bddfb61. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:53:47Z), 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/GBXUX0833706.
Psalm 54 "Save Me O God for Thy Name's Sake"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34aaf446d668bfec184c0e29d962a721fabb5781ef51b18e40720c1253422374. 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/GBXUX0833703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0b45894a553102e19e1e8e365eef17a14aa6e5b078d551a5d43134f14405d67. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/GBXUX0833704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21f09cc13ef11083b8ed6ff4d287c03a43d42b56a18e878cff82e7ff1efbcd36. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/GBXUX0833711.
Psalm 12 "Help Me Lord for There Is Not One Godly Man Left"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x289a6d20a110d1e028905500b64a928694c6c64baa85e8fa0000409c4caf2aed. 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/GBXUX0833712.
Psalm 14 "The Fool Hath Said in His Heart"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x281469a955af548ed54bbc39eaf65aab277f1537afacf2fe92545c150aa4542f. 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/GBXUX0833714.
Psalm 128 "Blessed Are All They That Fear the Lord"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdee696c3ce296cbdda75c48f35b7c0bedb74538d734ecb7726154a4cc4708cb7. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/GBXUX0833716.
Psalm 29 "Bring unto the Lord O Ye Mighty"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0364f7b9b95c98076f0af565cd87894595743251d56c679ff2742a65252ed13. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBXUX0833719.