thumb|The Jutland Peninsula, possible homeland of the Jutes The Jutes ( ) were one of the Germanic tribes who settled in Great Britain after the departure of the Romans. According to Bede, they were o
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 0x5fb2af078736fad29978a05067d0f7714c603290f255eb6556fa5d388996ac76. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/649ff76f-2906-4bef-8559-8fc107e9ad2d.json and https://artists.proofprofile.net/proofs/artist/649ff76f-2906-4bef-8559-8fc107e9ad2d.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 0x95b48432016a4f19f1e9371bf122bf0c50a9442003cc745a9c02fc3da1ebb610. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TCACM1684208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe435cfd16fc967331d8189fbb8b2903d338653935bced4e6dd65fa9944115fc5. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:00:57Z), 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/TCACP1653052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc14257030e32a25e932ab78c6453584981314ac9ebfe916a739c1dbe2b383f00. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-20T00:27:29Z), 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/TCACQ1655571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a0fa2009d0c3e2aae253a8520f489988a3222175efbec59164cfeb4f55040d1. 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/TCACZ1794799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1318b07b7ff2f8127ce9d23ca7af7fa4ddb5143200f43eb36c45ab8230bf646. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/TCADA1764351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68de6608f0da44b5644c35ac52a05e87f922499452c271d3ee9b557b8c766a61. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/TCADC1748498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10736bf52d813ceb94d81fc00614782590d8d4d091e684c55933b0a102e8a35e. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/USLD91712478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2bd7c11241ed5a423908c72cefe3353872bed009af5942f835ea167e9519894. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:55:42Z), 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/USLD91713876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84dfd9255489b9664918f023dc94b29cb9b2283e57e2880b057807beb838b0a8. 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/USLD91716420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e7f04230ba8b7d816ba24a3261eb227d045112066ec584ad0a2caeab668e5de. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/USLD91716799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd59b54527d1dc5bf902d975a0e40fca407a9606d6003c9a2d9a4caf99635a37e. 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/USLD91717006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80fb5763837e18c81e8a97f51209c870051a71be2f51f27bd707ac6f64094907. 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/USLD91717005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7db0f73fbdc1b5d75db706162206c57e7bc32170d1273f7050d30518c92728c. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/USUM72003365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f6c0027ec09b10515c7fd0ccb0cdfedbc2ab4cab597016dd97ec6a7c9ebd81d. 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/USUM72003364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff44cfc13e85f737b57d25b37b959a98d0105df5231319576adbf3748ab8d76. 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/USUM72000650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1573aaa3efb0da139a5fe87d4c0fbb608ba8c1d0b9daa82056bf51818be26d7f. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/USUM72003366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x221d46d3a5104515e458e6133267f910ea435eefdd95c04fe5deed08600dbb67. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USUM72008922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0f0c9e6394bce3c48c98c5088f2c37280bca6affd0d9d665cb444dae349f4b. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-20T00:24:02Z), 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/USUM72019409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3338d7ca52654257fc43ed17166131ada02ac609a82bf2d656e70b5639ee4d4a. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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/QM24S2101020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4416213b021d75bd714ce3641fdfb9d15b1e03f350c08d10e81343d747e8953a. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/QM24S2101097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac0fc7422587a23e9b5a384ac675737a623319e95373f26e513879b3ed09f59b. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QM24S2101309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2f7d85ba4570a73a86c7d793c86e6492fed2c7c13a05702b37acb026e17e1d7. 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/QM24S2101431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dd6f7a9d560dbe60181b91d0504449957e07f14dc48365d06c346cd49017349. 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/QM24S2101616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4bd3b3e9d4a04b2ca98e1a21c4484e861f5c416c11c52186f0df9e384ba8aeb. 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/QM24S2101819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a13e03f23dfcd7418661638224cf6d6456e23519e1409f9f91dddb9b7df8a92. 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/QM24S2102006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf97aab5168bbc62d66a2e90975ce28bea2c356536adc38cf236d861c4405bebd. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T08:04:22Z), 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/QM24S2102297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c5cf7c79431a6440ced19c1dc036acf2a675bdfd1d719259d38c0127aeb0a73. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/QM24S2102407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68365dedd84029d77f5d2279918ab278d7a5c42d560a6f029739fe6618ea2f22. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:41:42Z), 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/QM24S2102516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x433f7d017c0f82841ba9b449134a937681e1caee6030b8479ac12d02467f4edd. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:52:22Z), 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/QM24S2102602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5fe5b0e584c7853a8df0da208af00b06b89642f59793550dd2a519095924116. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QM24S2102665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea5b1eb10d84ffba5eaa49ece2ae23bca535a684f92689ea3bdf25e60e76ca01. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/QM24S2102781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe55bbd637dd34fe5d41c9058476c19bbf0a2d5e108c46fec42ed368fe405ffea. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QM24S2102918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c2050813f8a8b7387d35cc8865f22ae69164cfa87d6c35151bde0e05a5c1535. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/QM24S2103184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3fc24710ec161020e5b279436160743bdb9696b4f010233a4fdca8934d417b3. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/QM24S2103293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4416213b021d75bd714ce3641fdfb9d15b1e03f350c08d10e81343d747e8953a. 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/QM24S2101097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c5cf7c79431a6440ced19c1dc036acf2a675bdfd1d719259d38c0127aeb0a73. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/QM24S2102407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2caf8f984205426633333a5b189f716b339491c83fe14fb326909ded3464b1d6. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QM24S2103483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea5b1eb10d84ffba5eaa49ece2ae23bca535a684f92689ea3bdf25e60e76ca01. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:46:09Z), 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/QM24S2102781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe55bbd637dd34fe5d41c9058476c19bbf0a2d5e108c46fec42ed368fe405ffea. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QM24S2102918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c2050813f8a8b7387d35cc8865f22ae69164cfa87d6c35151bde0e05a5c1535. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QM24S2103184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf19d57d2f9846c7706b3e570bb1496b70ef8f3a70fb847e37362f1d1fd76fff0. 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/QM24S2102148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14c8787a715218ca96ff1c08cc7011dcf90ba5e2a1233b0d1abcc37b9ef71b9b. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QM24S2105359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb13813d26eb7983998e996f81b7059ea2cc32ee19d5db106cf364e5ce0710091. 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/QZAKB2160210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae6147adf4c4161ff4a49d16bb60fa1c8bfcb22fd46cdb5164a2ec8305d6b1b1. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZAKB2169793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd35565c1e862628351f7de5688937678a8e844d25d9e6a51475977acfe2693d. 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/QZAKB2201353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64c4dabeb48b4876b080cbd88ad74fd92d0c1772f5b76841fdc53e73981430dd. 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/QZAKB2172531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd35565c1e862628351f7de5688937678a8e844d25d9e6a51475977acfe2693d. 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/QZAKB2201353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ab549a8aad9704c575e02e8be3852eda0670aaac18c0b782560491b3b9fc4e3. 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/QZAKB2202160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56036a97d295b30429831537f09e0358f9388cb8f71ba911ae84914740517b50. 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/QZAKB2202162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4adf40ec32e89770fc5918ae17bde06f5995396a915631dcfce12a6fd1c21ff. 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/QZAKB2304845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4adf40ec32e89770fc5918ae17bde06f5995396a915631dcfce12a6fd1c21ff. 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/QZAKB2304845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0e2dfc0613e243b4b3dd1708617ae6db7a65e8647218eb56cb097e3369fba22. 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/QZAKB2323691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a777efe644468de83851d95498a54c6c5d8354397d0e18fe8407ae6b333df19. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QZAKB2320658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ec2c636e9c07a98ce6f8555766280db9bad533824cd2f2bd20cf67dfadc2f4a. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZVEM2381801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20f6662084abc39139d2d19a169ecfecc4bd861fa59107f97be68319ce4f7651. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/TLVEM2459552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5613c156fb61276bae88a612a208b25f2b92948427885bb352d401d3cafcde7c. 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/QZPEW2425677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ef10610ae8aece3f20c914de6abcc7cd1b52de0bee86020d1892b739156beb3. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TLVEM2459551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x588c1752ead4e36770c047d6ad4de5b0dcec4702c247f75054cae894b3450cc0. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:00:34Z), 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/QZPEW2473823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc44c3b9f6635c7c4d21d91c453801b95bd0dacf447b39a9bcc740a0d4ecd0a7c. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:09:06Z), 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/QZPEW2449291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2101c09fc822df39203dfddf666830aac893239846a1a43bf90c1410874ca96. 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/TLVEM2401807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5533ede76875353e6683e3fafa55691983fb6e946400f010b106cf2586bd7831. 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/TLVEM2401808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20f6662084abc39139d2d19a169ecfecc4bd861fa59107f97be68319ce4f7651. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:31:00Z), 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/TLVEM2459552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20f6662084abc39139d2d19a169ecfecc4bd861fa59107f97be68319ce4f7651. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/TLVEM2459552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x649e078b3dd42b4bc5745cdb93a83010bcc692bf62b48e4001adc683154b90a8. 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/QZUCN2200411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eb4c477dfd22494510d64ba7625057de3f2a130ceab59ba5fdc992449c0891d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZUCN2200157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d1e60f7ec02161eec153ade80d96660306f3f0f5e40c0eef2995459309e6fe9. 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/SE6JF2100101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d1e60f7ec02161eec153ade80d96660306f3f0f5e40c0eef2995459309e6fe9. 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/SE6JF2100101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b679c8460a45cda397b8f996176faf6629623b96ad2420889ca7b2f6a28d5da. 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/TWA532101884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b4996b11fc8eaf1e72e6b01d6b8bd1df56379aa7d7e958cd191fef21941fbd2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZHZ31916601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b4996b11fc8eaf1e72e6b01d6b8bd1df56379aa7d7e958cd191fef21941fbd2. 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/QZHZ31916601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b4996b11fc8eaf1e72e6b01d6b8bd1df56379aa7d7e958cd191fef21941fbd2. 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/QZHZ31916601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7aa399085a5782e4bd1d8ce33358d84c1ccf07a8fe93a83e6980774a240b0a0. 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/USLD91713235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b679c8460a45cda397b8f996176faf6629623b96ad2420889ca7b2f6a28d5da. 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/TWA532101884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5607cd4242b09786d11437ebf90a24952b381327ee5c502641feb413e810efeb. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USUM72015056.
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