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 0x5b0bc019e0ea6f0060107f307a2e0cbe366d0680c504ea8742d0efd68df343a9. 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/95596e1e-c50c-49fd-9fe8-133a6551dc1a.json and https://artists.proofprofile.net/proofs/artist/95596e1e-c50c-49fd-9fe8-133a6551dc1a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Steven Universe The Movie Piano Covers (Piano Version)
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 0x881e203292698415e1420452f0935ce4ab12d17104c454b0603ad4275b3f5eb2. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T00:39:30Z), 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/QZRP52146582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2d783cbbf0d9c0db7713a71a087b35e9c113e9f9cf76bee8f3e35bb0e48c6d7. 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/QZRP52146583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3f14a256b882fe8dae1fc2ac2f634b45052065cf0266d0ba3b4a3de4c5f1c5e. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QZRP52146584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d505295b05d635de31a62ae53a16f302af530d4ab21a849de0b77611849e63. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/QZRP52146585.
system/BOOT. PearlFinal (3).Info - Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47dc4e7ec600b87bef50e42bc9b95893792c60ab0a9bf5043d4bdb05bf8a79d1. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZRP52146586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0091e3a24af3aa8e0209a75ffc82fb9fea1e7f710dff530da26961a936d63116. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T23:02:34Z), 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/QZRP52146587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e4e0fb83c5ff1c83a6f03ee42fb358f6f106975568dab3868128102ee55ab13. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QZRP52146588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5102ee5aa92faf4589f8822fa61bcbe1d7216f65ca1ad6bbc42a8d9dbe8b7611. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZRP52146589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f0a4cf31cdfb39879deaad9a787d5a95d14f1b107c84df5306f27d40d041515. 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/QZRP52146590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b1f1fc0eca889d2ead5dbe65d412058dc19f70fe80e8c910d0438feb8c49683. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T06:56:42Z), 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/QZRP52146591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x632e092d1c59208ebbe937ced70e874f041786b0a7ba8f4487f47f33a7acefed. Chain 2 (Bitcoin): anchored in block 957544 (2026-07-11T09:08:48Z), 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/QZRP52146592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9230cc68bfb5999f4803b950595c840d4a1a4065ca5c3d4f6298a2d6baec636. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QZRP52146594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5e18547403fcf0d58247b1263b4a6651f3638a677cd24810ce6c698bcdacba1. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/QZRP52146595.
Let Us Adore You (Reprise) - Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd17a593b43e8e3078f3a003503796070bafefdaa025c78e5c214036097154e2a. 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/QZRP52146596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddfeba07c77a0286f28605d79a86d66a840f8f60dadbd36406a04e207fa79761. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:01:39Z), 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/QZRP52146597.
Steven Universe Relaxing Piano Covers (Piano Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93a03dc74656b46c31e1c634bd4f3c90bdee16c6025dc2bd88bf62a8a52dcd20. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/QZRP52146570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd8105c1e816ee2af911cee5253315a95a5837baf81bed0c8d9c90ade67daefb. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/QZRP52146574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x327a3c27423def97e6706cf39601a96f4b374abe144666bdfb7d413a4cb75487. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZRP52146575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21b66331c45402bd599726c10f610fb394b1eb675f7faf4b61f57861c9c7e626. 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/QZRP52146576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1807fe355b976c65285f5ee576c959a98b70938b8c7f5aec0ee74ab63a7ed78. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QZRP52146578.
The Greatest Showman Piano Covers (Piano Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe63d408ce97618d1c22937791e013d694207ec26fcb26e3654d47d18123cde58. 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/QZRP52145325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd5f955e4832e6a2040eb83beb7f1103e5c45eb721066e98e1415025b99d728. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZRP52145327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x002c82113d91a6962d5443f8dfa81630e2f7120ca4bcf8db5e92ff8044119805. 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/QZRP52145328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x889124a3dcf8e29abe8cdb3accb8cc753fd4e3666b5ddfb27fe153205738e336. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QZRP52145329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1228aa9f3a675cb6d2f15cff188c72b7da74410968d318523933ca1e463111c1. 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/QZRP52145330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x826d34b669d8649ee261fe2efad1d87e79f9e67d1cb884abb6200cac159c84a8. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:30:48Z), 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/QZRP52145331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x428e8e5af682098a47463a9bc458a2b29ce4b6af8e5c9d9bd669c00711092897. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZRP52145332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf53b61bfc7aa5139c658b90b2704d799d14488f96a46459ec2265fa7d5e6a44e. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T17:50:15Z), 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/QZRP52145333.
Romantic Flight (From "How To Train Your Dragon")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c44ee4301cf2cb9c118c8aa44cbe3134d1ac87d2cbc6704be4930ce57726e8c. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZHNC2293790.
Forbidden Friendship (From "How To Train Your Dragon")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d0b563093cf69af1b7baaca24bd7b0d1afad2085ca5b759455427709b75b10. 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/QZHNC2293791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d9a70d13327201e1daa827e280a5472bebc1dbbc24e18f3073e64ddae5e4f6d. Chain 2 (Bitcoin): anchored in block 957541 (2026-07-11T08:23:18Z), 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/QZHNC2293792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a55a32556d7ff6609d3c6c9c66826a7da84b021c0ec9d2dc056aa8a236f1035. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZHNC2293793.
Sound The Bugle (From "Spirit: Stallion of the Cimarron")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb0b2246449a64a8fd76b5810d443536a081272d90a60f8ef70772ae703ad20. Chain 2 (Bitcoin): anchored in block 958654 (2026-07-19T03:55:30Z), 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/QZHNC2293795.
All I Ever Wanted (From "The Prince of Egypt")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94d55ebc1e0a446160b8704b37bf1fbaa9f89b66569b297622dbc508ee4f1023. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZHNC2293796.
I Will Go Sailing No More (From "Toy Story")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9708a601affb607fcd0e0546290022fcb1bab6d2eac741f3df30b93daaf1f53. 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/QZHNC2293850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bdfe637c890e1cb96dfcc39fddfedb1622dd42d67e2ab02ec0bf1694c04f3c1. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZHNC2293851.
Boo's Going Home (From "Monsters, Inc.")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c0f20e4c74d1bd99a26d105e37b6db539b5c8cb4ea51bb6587199d1c424c7b4. 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/QZHNC2293852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bc7ec9597881572b6b2e7219c81b7d3dc7427b487cae2f09ccc6e9b8b3c235c. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T15:02:31Z), 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/QZHNC2293853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacbf814b797fcd554bfe77fbc4a473458d84560ed9b4f75fe956925f220a0300. Chain 2 (Bitcoin): anchored in block 956485 (2026-07-03T10:53:04Z), 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/QZHNC2293855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80fefa6a7f94c2bd51844b720fc02c2226eb06d8bb5c08adb5a8c8e4be572b3d. 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/QZHNC2293856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a659fb2f36af5f9fc34c82807ca895cb79dbc34f363aef6fed8a568f507e20a. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:44:39Z), 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/QZHNC2293858.
Peaches (The Super Mario Bros. Movie) [Piano Version]