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 0xd87bceeb7e1e7f817f4c7e141995d618045f20c5f2ac227e4df36a975f35486e. 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/b5f2534a-94a3-40a8-9035-c1888bed3cba.json and https://artists.proofprofile.net/proofs/artist/b5f2534a-94a3-40a8-9035-c1888bed3cba.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
How Great Thou Art (Arr. Catherine Papworth)
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 0x28206d1e38258c4c0ac58c2b1883dee83859d00220b8ec7f50ae84d6480ef727. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-19T23:56:34Z), 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/QMRB31400166.
How Sweet It Is (To Be Loved By You) [Arr. M. Osmond]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a070d10c66b99527ccbc4aee05fa6417d5f293fa1b34508fbb0b1777173d037. 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/QMRB31400149.
Lord, I Would Follow Thee (Arr. N. Parkinson)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x370afc8b260e7e6420aed8607e6347116910d139163ee2d00b70c3d7a33e7994. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T18:11:20Z), 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/QMRB31400153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x153e4044cacad0c3c3de46ba8f8ef6f2017254861f4c8199c1c3b42741a9de70. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QMRB31300109.
Amazing Grace (My Chains Are Gone) - Single
Star Wars: A Capella Strikes Back - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9413bba184decd68b40fc2ea2bbe43666e290b42ba75300450fedbba7fee7ae3. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QMRB31600021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf23b83dc588eed664b287e65c270c3a589d4c18b1cdf2b809ed4afed02b914a6. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QMRB31500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf80a68b1f175fa3083d25866e6b9df9d62106b686f3f21516991db176840f27b. 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/QMRB31600026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b3b59259b8a18a13f85d1ccfd24e19d570bd78765e7fa5556bf3208cef9db79. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:01:51Z), 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/QMRB31600028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x210a9a623b99dae36f8774fee29127423912d39402111d0d4c9e9f1fd9803b02. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/QMRB31700002.
How Sweet the Sound: Songs of Inspiration
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x964daf5e117d8141960aa979298f30bea4ed49389e99645557c1799ffa8e1b34. 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/QMRB31500032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9413bba184decd68b40fc2ea2bbe43666e290b42ba75300450fedbba7fee7ae3. 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/QMRB31600021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02088db726ce4627e592b148005e05314b479b3ae54724677ac072cdebc786b0. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/QMRB31600030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd474f931b2b283b279bc38b78841b9b59dc04d5a9a68299a11e53df76070a3b. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QMRB31900032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x413d94e03c726402c8bb0d9a38121cce4aea24da634fd93143a92a398b67ee98. 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/QMRB31900066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb7429ad07b24fc91b3b6cf33f777b405b0ed0ca450376825910c3c70767e267. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/QMRB31900051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1c4e934c213d056d2cf871556a457d722df51e0d72c3e784c17eadd4c611452. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:23:36Z), 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/QMRB32100008.
Olivia Rodrigo Medley: deja vu / drivers license / good 4 u
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38ea42b8a818a9de6ae0621c89b62b08aa6ead4793713e5a96bd280430e03178. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QMRB32300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e59921eac71a9a06ab3ea1bb8ab2ccc3606ffb71d3824bfad66bc25c7abf328. 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/US23M2201466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x292f9203768b389742ae262854a229a8cc6685d80da5d4ac3184680ef71d57a2. Chain 2 (Bitcoin): anchored in block 958117 (2026-07-15T10:26:00Z), 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/QMRB32100078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecebd3736562ee176fc6943191b49f7442b9baf96e3c8cc4bf9afc6e1a2dcd0b. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:50:41Z), 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/QMRB32200070.
Waiting on a Wish (From "Disney's Snow White")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79274b94792915482a2fa43f92ef78d42cea0c4defd1699d44d062e963a50fa8. 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/QMRB32500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x853f32f799474f28731a05325912b6fb296a3c06b924b2f8099dbbb75c263c4b. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/QMRB32500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79322c8bd626d3cebae8a8dd40ac46699e16bf85a5153ad8362e0f0d498b6d3a. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QMRB32500004.
His Eye Is on the Sparrow (feat. Adassa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82ba9af4d388f492754643f040caf3e9e5339dfd335a5b2d04c630f4e80f8ff5. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QMRB32500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5747613e4ae16175a36fb17175287bc9decc9a7e26b78ff71d986b3fc268ced6. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/QMRB32500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf1481f1e035911b75df18e6e1c683eee3ca5cbd3f1899ac3957f2c1a7c2bdd1. 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/USE830900691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bdc20a8228cadfb4ba3bcba12f90591195277f0fdf029ca1d88031eee6f6ffb. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QMRB32200063.
Oh, Come, All Ye Faithful (feat. BYU Noteworthy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98a43f5b0d705ad0762a277fa54db685c505994ce2916d37b742033bee6562ae. 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/QMRB31500012.