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 0x1e3e8c31afa2e1311ed95c059414ca2cbee6fae190dae395c52439a3324bd566. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/79fbd6fb-89e1-4758-9679-a8f048f6c325.json and https://artists.proofprofile.net/proofs/artist/79fbd6fb-89e1-4758-9679-a8f048f6c325.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I Know that My Redeemer Lives / Yo sé que vive mi Señor
Come Thou Fount of Every Blessing / If You Could Hie to Kolob
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 0xd22d81d012a40820afd7c0d6467c36b4122033ccbefbc568bf17152e6bced5f1. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/UST8K1625517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0723966565d7ef07c9ff96a5261aa58b736b92aeda750146c1ded8bae9ef720. Chain 2 (Bitcoin): anchored in block 957717 (2026-07-12T14:54:03Z), 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/QM2PV1663430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e8cf52d6aacc109ca5595cdb48b36a75e88aec1c1b4b3ab269b6d12175189a6. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QM2PV1663471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e864609a8859fad339a84da212bfc770837dbe67dcf9cc1ae746edea1a954e7. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/QM4DW1672447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d08971519797ea1e763022f4997f84806bc03a9a48a415659c7543c941d37e9. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QM4DW1672448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04badea7ad55d0ed4aad140630cc7fe01b72d1b1deaf218cca7d8f2a63318ad2. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/QM2PV1663451.
Be Still My Soul (In You I Rest) / Calma Mi Alma
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x707ae088ebcedc286dab08371fd0f3d1756bbaa628d84798cc343e06a275b77c. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:40:43Z), 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/QZ4JJ1654934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x024f2486869ba4c057657ab4b38a68fd4d92eb780f970f8096f37a8203c1c3b2. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/QM2PV1739134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab5f17a4fa45d576f849ab622c30ea2335e627777d905630cc5a1f5b09751f9b. 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/TCADD1723327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13a48f32b7ef324a2914917a828d57cb17816141e7ca8f2e93e00b6440a7afbd. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZ8LD1711222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x128afe98a4fad1043a7ba31dc5f5333e184e85d633019018fbb7bcd897887432. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:21:51Z), 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/QZDA61843593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d840a1b479125e32fade9a54e69eb44015d5a16377fda537366a45b83b2ac28. Chain 2 (Bitcoin): anchored in block 957620 (2026-07-11T22:32:56Z), 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/QZES81971590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x029ce8e98edc06500066ad8efb403d135c600eae1d518b9fa3b94a6551460666. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZARB1829851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7b4bd3b80080497512437c0f0e850b28123e0dc418730471353d5b482264d3b. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZES81970519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54d4458e814d59c68ef84f5c291253774ce3840b12b755b3a7a247e9b396d91a. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZFYW1967762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ac45953b234f89cb120e13e34550decc3573acca67e077491c0c6e565739e7b. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/TCAEG1942340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd533522248315521b628c39bb11a789f32d6e0d9072b570303f2c631dab8daa1. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:48:20Z), 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/QZFZ41912639.
I Need Thee Every Hour / Señor Te Necesito
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x236cb14b6ca4efde6e2b2c065a9a9e3e6baef4c134abf4f7a88ef166c48d0341. 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/TCADR1897785.
Lord I Would Follow Thee / Sim Eu Te Seguirei
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51c1a6241a0f18d941054ef492d34d69cc42040f3a2ad8bb21dbdc76f777235d. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:45:58Z), 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/QZFZ41991240.
The Prayer / Savior, Redeemer of My Soul
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x880ddaf3276d641001128705f987d213f32dccbb541377deaf1b2e768fb8e52b. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/QZHN91935519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd42b15a8ba73c7b56fb2e7ab8d50cc531077026105ed4d01291f267b4f9f3433. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:56:10Z), 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/TCAFD2025720.
Oh, Come, All Ye Faithful / Venid, Adoremos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x978abf9dc74870f2abbce86c13d7438d8d6efc394fad25db650869a8e95106db. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TCAFH2041037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97d202b510c18feebfefb547668afb2d4464feacf509b6fd12c08de079d15b77. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:33:19Z), 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/TCAFO2165907.