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 0x7bfdd6ac51801cfb47dcd8b445c6e859954a3ae3d666f9ba7f622ad0ed361910. 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/722bde4b-62d4-47b6-9e04-baf962697678.json and https://artists.proofprofile.net/proofs/artist/722bde4b-62d4-47b6-9e04-baf962697678.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x1e5c586d6f3d006ba902801c1098b33e4409acbe48c64c8536ae7dffa7d6216d. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/USL4Q2280668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ba87e50d6cc5495f86cb8e2ce2870e3ae7fa37f8e518951249ada5c4cf447e5. 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/US6YA2207579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3b493d5cea117048efeb54420841946c95d8be4933aafbada2d300546665035. Chain 2 (Bitcoin): anchored in block 957583 (2026-07-11T15:53:17Z), 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/US6YA2207581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfbd30baf38d6002c1823443c82afe964358d23840c7aa9c30a61a59ba24e76f. 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/US6YA2301514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc589e973e0fbb356065c1ced6775a6cb2513f8bb2a5e379450396f20e176947a. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:18:01Z), 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/US6YA2301516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21b854bc938a8e19573550a358843bc6aa916d24d7ecfef9992fb789b8f1a243. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/US6YA2301518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8b2f6c51f27c06037f183ed0a2abe23dd7afd5e853e2aaef36efb1aa71874b7. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/US6YA2301519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b03f81bf67bf4f56dfc4c229d049a9bc34b0fea0dd07ba819065ac2bf89e328. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/US6YA2301521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9839cf4ea0a625da872431c057de6debe3fe45850f39cd15dd898b954fd8437f. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/US6YA2301333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02df211847c2dc39effa90c5d7cbb3692b53aa2f11b3115758c4df5f4dbca351. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/US6YA2320223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ba15e001592b3ab7498f230f4c86feaba474215fdcc2116397c4abb74a03217. Chain 2 (Bitcoin): anchored in block 957579 (2026-07-11T14:35:38Z), 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/US6YA2377787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13660cddcad984254b3e95256eff7cd2ca8d4bdcec89d3f0189374a10f1596ed. Chain 2 (Bitcoin): anchored in block 957583 (2026-07-11T15:53:17Z), 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/US6YA2200019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf12ed82e5b1b75a3c21dfedffe319e93dfb45f68733e5175e5501b01c360bf24. 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/US6YA2376232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76426d2650aabef8de64464786b7e0dccb4fe39f607b7023a0ec2f502774bd68. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/US6YA2252228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f8543b7320cee239c3d3a7e8729ccb7f73fdf7c1af05310ee2615bcb2bea980. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/US6YA2254261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa01886c38a35fd0c64344deed0475b7e6b61ad4c9110da805a3320c731bed1fd. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:55:57Z), 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/US6YA2307222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40b082bda11cadb1e46054936c2f480b76a92e7bc14b63699d9822d48162451e. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T13:52:00Z), 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/US6YA2333315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf87f5446e14078451b6d0470dcb2bf3c693722d6beed2031be077ec6b7a1257. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/US6YA2482333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16b1eb4225ef63ff63aaedd0ae894fce7ed13c8e7d2e26b2efc82e2eb3b529ee. 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/US6YA2484356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58cbe76fd4623bf037b2f5472e9423cf7b21cb3083fff0873cd6f2253b8a74fb. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/US6YA2488899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x318ee5ce78f189c25d24a914f7be4d6c920e46bc187e26216a8cbbb6eda63ab9. 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/US6YA2482222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43f195c9a94878f5a1ee0df7aa74366c03212c0880df96aaf3080c99f9cce0f8. 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/US6YA2481111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32bab72126d1739ff259ff4f4ed6fc77aa100578f8dbce3e630c5cc0df9918f6. 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/US6YA2301512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x318ee5ce78f189c25d24a914f7be4d6c920e46bc187e26216a8cbbb6eda63ab9. 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/US6YA2482222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf663ccb417eca68a7aa304c6180405f7c8e6f672283794fc4657be89fa270472. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:07:45Z), 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/US6YA2301511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd749d1f983a084a3af9cb83681ccb6ab7da88886253f6dcd978724fcc067948b. Chain 2 (Bitcoin): anchored in block 958752 (2026-07-19T18:50:20Z), 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/US6YA2472222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a105ff39e68b8032cc8c28d5dae7379d5d771725cbd425789a8cb69631d335c. 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/US6YA2515111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x641ec1b2a4a8e9aeee4603809834e18b0e4c611812cdcca0a7fd09a806a47c8f. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:53:09Z), 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/US6YA2519919.
Indie Folk Central: October 2024 (Autumn)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e4f340b567f054493cf5279be219ef5f0bc9b8e419d66d2fcd44089f153deaf. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/US6YA2413333.
Morning's First Light - alexrainbirdSessions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbac221aed3b9f40a2db26c89a134d66f3a92dfe8c88ba672fdd04bfd065d2ac. 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/QZMZ92447479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32bab72126d1739ff259ff4f4ed6fc77aa100578f8dbce3e630c5cc0df9918f6. 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/US6YA2301512.
Everything Is More Beautiful with You - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d5c6afd6de4acf373ac4c43710d8fad9332bec09fad5f6c971be0da7bd31805. 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/US6YA2301517.
Instrumental Indie-Folk, Vol. 3 (Alexrainbirdmusic)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa543b59353653f05f50e5148a32d590b21eae98d170f8e21419c865f0e205ffc. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/US6YA2488887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa2c7aac03e311ecb3f6f37ac5f61866adffaf19333de1bcaeb1c1841712bc11. 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/US6YA2354333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71024aef6771d3858ed17a1d9e57704857581d939b72277df9d3cdb1acb63f92. 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/US6YA2382222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x138d01e1c693b95e64bd1eeb065725a277855c3c693949e61b305f9b767acd64. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/US6QR2300105.