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 0xc1cb63ad8531b407621ba8e0fd8b5b5c6c9e640289b73faf53d83f2a48e81e1f. 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/b70a6e17-8ff9-4a69-9255-f1b4a85fa2ed.json and https://artists.proofprofile.net/proofs/artist/b70a6e17-8ff9-4a69-9255-f1b4a85fa2ed.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 0xf279cc0a01cbf6f4cb33bac0a2f51f58e00dbfa3d35370be4721e9dfaf2a988a. 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/GBLV62005397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd261cefcdf9616a99d84f7c5dac830f5ffdba3697c5b9284cb261729c4b1af1a. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:32:53Z), 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/GBLV62005398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba4a5944c1395bf44282d1c9e6b72c6d6f7d6a6e2cfe4b0b492db0c3c3d0444f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEPQ62001025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb942dcfdc07bbc8fdcef75a6c9fc6b9c59d4c2b8a96117efec9fbd4ae0d57748. 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/UKACT2330784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c682c6c90a9b67ba797d027b34b214b1e70ba58f433f53e3752dab0a99c72e2. 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/UKACT2330785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fbfa6d67ca2e7d662b293d62ca3b246448d2b1b6087ccd25df86e45027836e1. 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/DEPI82021519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aba9d97d75ee64844b19faac1efb4e313f41585e0da57911cd10566645747c8. 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/UKFHN2000060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc65f10f018b358ffa8ec029148f20811d358ca9c06c2c7183d8c8c81f51339de. 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/AUXN21502363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73bc65cb46abfa6e4843927adb9a44516cd26660d0f5177b52b572d29eb7eb6a. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/AUXN21502364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc503034299969960a26e8ead98180061fc1ce875654c9f831fddeb445d95f130. 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/AUXN21502365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ef1b6100be57bb0ccbbb5df7c94fd7cdb5a192e08ce626160f01f18a9c2d6a0. 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/AUXN21502367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73e3a1638d3583de3ddc3aad23e0f967285a21aeaa77618ac8743d0be9aa0545. 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/GB7NR1219203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4db97865473a65c52958df6892711e06a0a5a748fd865f72f283bb9cafb71dc. 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/GB7NR1219312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x084d6cde986fee90f9b9a159dc727797ddbe869b3cc7be161ee32a5e4c684f73. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/GB7NR1219210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf3f978583092533ec3537c436248471d8a26d7a40f703456f2aae2c3b2390c1. 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/GBKQU2392029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x819c327e8bf3ef6d93ced18a5aff66982e478f4392b2a4983c693c0d8219d684. 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/GBKQU2392032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aee771c15174178ef46da0fe95bc023b37a9c26df404f12db71283bafce3ad0. 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/US83Z2324192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb82b388a47e6946466af311c6f9ad0c4520cffe184fce6dcbe93e6db417e147. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEVU52363196.
Instability: Closer Than You Will Ever Be (Fur Coat Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3abe08a13a47524732f688f0f236ea77e078ec1f6e9642d385feaf88c2f0c7d. 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/GBCK92200053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x411f5aaf8ff1084c10876619685a067ff36ae7cc5cd98852674b58456e83032f. 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/US83Z2305366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x136b12549683d35a6018505c0e2c7f08c7fd25e1fbb1d20c319a201ec133e259. 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/DEBE72200312.
Witches Stay Behind You - Fur Coat Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e3f7284074efd69e13e612526b4bace82c9405c58efd8f6c08ee74de008d6a5. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEG932201725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d8a9aa3238bd00baf836410a074837314d3b5191c7578fef471dfce203c7680. 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/USYLM2200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1501ea27cb2f29b759ace472a2791c7e50fa653d32838f16c7476af36ae6c19b. 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/UKACT2230432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc088ba570a4e0d7a0175e32030d0719203a84ce97b38e98c9664337755a9b7ff. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/AUXN22218684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe20bfdb31afbda07994a2de97e0f7e55621d24a3245280d47f7a29dda3561aef. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T21:47:14Z), 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/US83Z2144525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb41de4c079c6bed192c79316ae051e544ed1bf27919b7f5b6f10ff70396cf44c. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/US83Z2144526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x962c74f99900b05f53060b5e709533085e656acbe270a6b3b3fe3377d29fb913. 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/UKFHN2100076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa43d656a0fd6a00252f6b301fbef20afe133d00c1d68c20e9fb513ca4fd6cf16. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/UKACT2131113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4e2e0c448233acda1ff679345d9397b4dc40d70b0d8a0e56142115626dd3921. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/UKFHN2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4f9b808c18307f21c7e5bf58041af9f8e2887df4880a8f123487eeeace5a9eb. 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/UKFHN2000052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68240473cbcfd3c5002349bd306eb463564971e86af7aca6c323c0634a4055ef. 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/UKFHN2000053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9f9b54f2a244921ed803e3e7b69451e9c9393fa562b58b0d2bafde5035bb782. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/US83Z2004424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d1dbeecf11ffeff0a8114f7206a115948c8f39051e548f40321331a8242aa54. 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/US83Z2004426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57dca52fe08c6ffbe048aa956ad2116ca18064303139b01c274be47c1627dbc6. 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/DEPI81902756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8769a94f909612cf87ed4601be96b34a2e2c104e07657bb03c010eda37c46f0. 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/FR59R1979737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bdfbbbe835f4919641b3736139f2468b1df56b208f34b53fbba6e9a998e50e5. 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/DEPI81901284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab0b4576d89008cbdf89f1c49ee8ee90a5608c8ab1fceebb3b642942d54c9b82. 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/GBEWA2106513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8f98d7b89081d8798287d8e342236006c3eae4c90b7c16dc7dc285a67b8fe10. 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/GBEWA2106518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba4a5944c1395bf44282d1c9e6b72c6d6f7d6a6e2cfe4b0b492db0c3c3d0444f. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/DEPQ62001025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61a803fd02c3d395ad16b53d417b70362c8dc7613efe5552a30c29d45cc49250. 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/IEHDF2300000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fff4a3025bcc71e43a026538c242815d81982fb54b91d2e8da3a795188a4af2. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GB7NR1514202.