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 0x69772ba577f96bbc3c1bcaa65e76ce0d57ff87829900b633dfe730c57caaecf3. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/29abeff3-e840-4bcc-91ff-32cb6e0f7897.json and https://artists.proofprofile.net/proofs/artist/29abeff3-e840-4bcc-91ff-32cb6e0f7897.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 0x13cf62f743003549209ec8b1be8f2b89f8c725039c48ca2ea9e18a881d52a93f. 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/JPB750315914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30d4d50ddbfe3d3085f7bbc1a6da6b7f89c0fa0646aa009783d48045868e8c95. 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/JPB750315920.
OUR FAVOURITE SHOPS -Roots of KOGA Melody-
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x674076dafa4ba56e53fbd41d397552d2422ebff58cba23404944664a3c905394. 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/JPB750703606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0c5bd71cdde47ef73441450bebf930f7278fc4203a15d98deda27b437f1185c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPB751106401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71fc677bfd6463b76d410daa3ea39c4b8eb7c4a00b041e6d68d5b6367d3c646a. 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/JPB751106403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bbdfff4b5a252788d3ed0fea10aa5e6943b97d11f0188a8a4f95bb4fd99eee7. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPB751106405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6fc22b3af516f736dc60397a3184b02be6c806b1012c82b746c39d90ddd1cbf. 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/JPB751106408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b0988b8f47c4a55d909b00f2303f43d22db932565d7a5a173806339e316b94f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPB751106413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa939f51d9af86583844b6d4ac911f8aab0e6a7ff1e54618c5de25b44a8953c41. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/JPB751106402.
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 0xbb8683e7b1af26f70b07273c5cfc1238d8b20215a76bfebee769d2a57051e58e. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/JPB751106404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x843652733fc22a14cf8b40449fa586a0f7443268bbcb763fe805770f3e60b7b8. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/JPB751106406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75582fa0e433ea5b9bab56ee133f350d5ba43522fc9e7ce6eb8ba7d25f3f1453. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/JPB751106407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe312d72b5fb836ab3b1d112f85d62c6163d7499db225aa0ab7effc1f892a2645. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/JPB751106409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0207e061d5a492303cbcf76b01e679c8e1422f25193cacce9da284deb9027525. Chain 2 (Bitcoin): anchored in block 960352 (2026-07-31T05:48:30Z), 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/JPB751106410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55cf954951c4a2ee4f96aa12ecc116e95e000cdf79b3b91d5b919433534d1f65. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/JPB751106411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd101e5a6b4131be0a3f588a7f9ade42099ec60210a9b4c7d43483af7d9026b8. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/JPB751106412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a1b6ffdb2eb1b69256b5978cc9e80859a2e977a6a2c3df74d17f4ff527c6d28. 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/JPZ921103810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d9f17eb3ddaf223c051f81c024b29506f9c5b3b55b61dd4dd558b248d816814. 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/JPZ921103813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x047f05f98ed843a5727032696e7635d7f344f5370d646ce67b3f06d8059c975b. 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/JPZ921103814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x742681cd1d4629ea6ec4c0b9288aed4e729736f02d5c846f78890e29c6215157. 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/JPZ921103816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89eb772addfb9dc9af84070e45c001f855556c7fa348cfccba9a2f5d25d1ed5a. 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/JPZ921103821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bc8de68902ea97848470aeb2ddfe76694ca57b6adecc53e7b9893343ff947cf. 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/JPZ921103822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x357aca48b88ba53cdac06c82ccf82b596a5ee7135458e14da1cda66fcc797f16. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:10:37Z), 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/JPZ921103815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6096eab6430b8b56076182b98d651f4f7199a44aacec4f1b3e0b5ec13ee85f10. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/JPZ921103811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e86d1c345c4db1c3ed7569596cc5ce886992a7300dfc6c7c175a77c4b7bdb1d. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/JPZ921103812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40fae58a070dd715c5c6ab9daea88cf2f889678b407ab9c8d2a7ea6f3ed586ea. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/JPZ921103817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fb1baaae71eb36372209755d0acef23983b0c8f73d909d431aae2a78aa8e624. Chain 2 (Bitcoin): anchored in block 960277 (2026-07-30T16:10:47Z), 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/JPZ921103818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde2ec6e9cb403e6ec4c55c07915503e4073cdf7d17291776e1d4e9a1db2bbbff. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/JPZ921103819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9547b214fbeefd2b6f244f194e12a3c74ca1a0cb923aa51779a806708775f78d. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/JPZ921103820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61e61d610d7da15745b1066fa984cc7dd102f679217d8ef89d6a4d0dd0f5309e. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/JPB759908401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88dfb4cb006d9eb6652b2f0492b905c5c0519be2b9a3a9443f4db60f3a95066f. 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/JPB759908404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b37cc22f0cbcb8e6e2a950b46f9726029af9e186e4dc9d7ea80ac9fa9b95219. 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/JPB759908405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96d713eba7c7e757919e05c390711680723ee58d58621417b9f5f72faf0c8651. 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/JPB759908402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2db83c66c77c3816d663010ad5bf54c6f761a2380a197daf990514a539609ba1. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/JPB759908403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf575e9e0584c85f680bc664a62f0330e9bcb336ca9fafba108b75dbb56b7d235. 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/USA560891730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ee130600aa98c5be43035a64138c987b909bc7de686a855a4ee8624931c9267. 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/USA560891732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacf29ac34a0fe8f9aa54fcc3d56676c7e774c48f1b2102cdc1fea45b7fea92e0. Chain 2 (Bitcoin): anchored in block 957242 (2026-07-09T01:00:33Z), 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/USA560891736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd6acf6c8de4d9e5448884d8bfb7e2df23e9fceb1b277889e9bba6a9a879a797. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USA560891737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x139290ef49cbe9a94b8d752ab1a8c40d67d621665fd1480252e7232619fd57bc. 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/USA560891738.