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 0x12a25553083600cadb99b5e0aa728e29239ca0b2ec73858c6dfffbd8a8702448. 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/15d16975-31b7-4918-92f3-7f7c713edaf9.json and https://artists.proofprofile.net/proofs/artist/15d16975-31b7-4918-92f3-7f7c713edaf9.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 0xab69ad9be0a8066736379d98993656a6faa3071aeb9031e733c88b9d7a5f3328. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/GBARL8700029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf77859635e1977f27950c3438f5a698fd1c6ee1bd78f1c60e5b56c0341f1e709. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/GBARL8700030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3742bf70ffe0946ad527e822ba281ed20b6f59e19623d68b446658caa5bec714. 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/GBARL8700033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa13b2b1249e0272323dfdd838e06b1aade59868199e627c9371fdac8f8097d17. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:04:58Z), 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/GBARL8700034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d760140e05ae8309a7ad2a71354df329b88952ffdf743632a115bbdcd1e402b. 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/GBARL0400905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bc3d41134ca5eafce9b4ef87ac6112f909c424109e28abe116aced1abec8f6a. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/GBARL0400993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaeb942eb24a21886d6e46e9dbcc4abd6b114f5262ee875777583c77ca44c523. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/GBARL8800056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75d9ef6ff7127c8270f3d7d5ee53a4296abc86e483d77a0d4c374a35335ed304. 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/GBARL0400992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x605f1c6d672f60ede0da5b76607bd49aae3e933a321c7d2b2d422cde77713366. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:51:07Z), 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/GBARL0400991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e8b94af956c015852728156855b37bb781a081ef38aac8e8ac36bdfb144a0df. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/GBARL0401312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b8286ea95c879fe522ee8dc81b3c700114fdbf167d23c7a290237473876e353. 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/GBARL0401316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c16adcfb503c201c21cf69cada1fd053480ebc511cae5b21cd39bb78dc51998. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:30:39Z), 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/GBARL0401317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03e7f2481bca89b7d54fea185517a0f1c49aef94e9809fa28ac78a61b524583e. 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/GBARL0401319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb039238e8342987e57dcc8a22cdde096880426f27ea71d0718b6dee2dac94335. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/GBARL1000526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b36c09947863d9168ee85939daeceda57491b0120f7533f5c7722cb002cf81f. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/GBARL9300338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x734d1d5809f84a51bf6d1146ca43e15501c4e01200c0f34096bf8ea19e652723. 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/GBARL1000524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60279de7ac939b936058341e24dbc10a3417a9a5638ab23c0a4360d159a7a6d2. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/GBARL1000518.
The Best Of - Blood & Rain: The Singles '86 - '96
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fc6470dfeb3bcd9d901eee1e989956d2dd2eb5e1efc42b0c080367a0585539e. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/GBARL8800057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd030df23b8a7cd176a831d7fbd3e42f224cf32fbfa1207a1ffd0cfdbef76e23. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/GBARL9300315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d0f653dd2a9866d4ed89a11333960da50eeb78541068225cc3b6b36dc2160d5. 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/FRZ059400830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a49e9895e41b311274cbb0b136b9962f591f61541da4a3dff718ae3b0ca7c06. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/FR6V80100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72efec222f2902b16b2f5acb034b681b3f798cdd1fd1052cd1c4c254f9725fda. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/FR6V80100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6c3508e0e481bc185b28c89cf733d9c835b3b76e5bdb40ff8152578ab0dfa36. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/FR6V80100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74a5e20a73920a0356d96354bd26030b2f52aa045e10c6e883538274bbb64f95. 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/FR6V80100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa4c41ec25e7f3be3d79ad0409c62fad6956792c9f44bb57545d39c1b58f9857. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/FR6V80100013.
Come (Celtic Rock from Brittany - Keltia Musique Bretagne)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa915eb09289ae5890372f4a9dc0c4d62477e2f43e4a5914431b149452105e4e7. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:32:58Z), 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/FRY470415702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0e2e29f8977939740bca8b2cb056e24d28ab47467920a0120387319c0f5b97d. 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/FRY470415703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e94677dbf553b1a25696699898b343ac4ce9851071e535317912d969beeb72d. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/FRY470415711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9b256111db5b12f48e91054eef2199b5334db37a77d49f723e48b13b9a2049d. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FR9W12116307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76f36d8511b39479f89e7a8d6cd8ea4f0225a575d0b602261cc7b111aab62434. 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/FR9W12323743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c3844bbff9cd9c191f4b6bb79b9a51acdf01ea2ede2a0409d173548fb5da220. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/FR9W12116309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaadadd9a9db59fd754bca6a0710a47298c6441fbed1eb961023e90aa1214d43. 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/FR9W12323746.