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 0x98c1ecf1ffebfaf907788e4813349310d5630e596afefb77783a9ece54c618ac. 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/ace49f4a-c3e4-49cc-a60d-a14b42b41646.json and https://artists.proofprofile.net/proofs/artist/ace49f4a-c3e4-49cc-a60d-a14b42b41646.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 0xc9cfb599654b8ee61c4cc8691f678ae3d702f3ecaee45747c2a5577599b5ede9. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:11:13Z), 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/QZ5AB1935609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4838315171e5183e19443da2ecbdf2bfb09cccea98c312823c0fd9c54208fb96. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZ5AB1935610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x837ddbc3c805ab10ff75127b6a8df85f406e35038cd103a331fae1ef9fc54b5f. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/QZ5AB1942742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe63cfba9548ea49a99390e4b461fb13fd22b112378de230b32c3306ef15ced87. 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/QZ5AB1942743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2f450f6ecb715e3fa5b47e0741bb477fb9324aa17f528818b3f0b5768956ea9. 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/QZ5AB1942744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd866ba3a1072c3b4bcf0a48822491f67d4a6b2a8569677cffb48b6ba923d5589. 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/QZ5AB1935598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e4cfc0cb66ca541e2016758466f4b02e14b77b0b66cc1ccb1bc30e87b463cb4. 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/QZ5AB2024534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8047557938af0dc3102cc1c6760d0b4d9c2e923ae24508ab4c61df0492756c4b. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZ5AB1935599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8723e5172fa6523e193f92980aed13e2159a6ae8f20c81f54c18ceb1f0310138. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/QZ5AB2024537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x024fce5e9e4e2ae0f8012d80240099808b17de97a03f5bc857f05d4beb835bcc. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:36:41Z), 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/QZ5AB2024538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc334ced828ade15d7416ccb62a1ae98c3b2aa8ed0dd72159792adcca98cd8d45. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZ5AB2024539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16024d5a25695aeb1e83fa04f166f975fa771d98bfceaa2a3eaed2ed5ffe6911. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/QZ5AB1911173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6e1b9260d217339f7fc837ed86b01c6376c15ed4ddbecbe50b2efc6df5819c0. 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/QZ5AB2009415.
Soy Dominicana (feat. Diomaris 'La Mala', Pavel Nuñez, Techy Fatule, Manny Cruz, Johnny Ventura, Frank Ceara & Mark B.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a0ed75916006895bb7e9889f933ebe649d69fb40cf3f560882d980a3b3996e5. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/QZGLM1956355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5916636ab108475ec53859ac8e3dcf81fe047b5c06cd5ee9601e4608dfa8c05. 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/US7VG2194559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30cf0967787e45dd7ea6e3e998870b4ea2151ba543c90b9fa971357558531f84. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/ES5152100481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d5df8a7a801c54a564ac80f8226892d3259c170ddad33889ff0353eef29c9f3. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:22:49Z), 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/ES5152100483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x985f1676979d8ea654f7faea017f3afbd02e48bfd1c914df2da3f1bdce321f85. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES5152100484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1adf7592756853de5861cdb36d7bf3684e3e847144a06cc18bc328fc7737c33. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:19:00Z), 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/QZNJW2018122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a044881828a6ad11ada4943917640982bc6f1f25252a873c148722183ed265d. 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/QZNJX2005776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a5dc81247c6d20f5f1b18c73c7ad4473f731612d523fc275ed571789d6c82bf. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/ES5152100485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb55aea23e6ee803156dc02a3dc070b038c61d74506ea0ad0092b9026ba137173. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:11:07Z), 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/ES5152100928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dc32b66c1257432e49dcda52482661ca7f8803de65597358b8f95a0256d41d6. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T09:45:52Z), 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/ES5152200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37d4554be7eb158e068693e81a949967a0ff413072c23e8593f3fb5342c4f24d. 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/ES5152200519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4bd1bd3e592b71a951b37225e6e1b99dd86ac678ac53a887dddb0813b667f98. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/ES5152300333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fa4e97a2093c56335eeadc9e3c713b89399ffc61908881d3f30c4c28ef166da. 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/ES5152300346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ff47b912f5c5b267c54b0737cbd94f51c335a926eb91fbb6733005e7f7da80f. 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/ES5152300030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46e6e338e4f1cb69c0cc01facb8706d16d499ce547e06b35a29eab1db9540611. 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/ES5152300277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef2e0af20d252b464e9f3ebfaf9ff28367ba6d1e2a6e634511e4c954422fd184. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES5152300347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b103686dafae3d7bc64f4eef97383810dba09e81552407b9a03bf566975c2ca. 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/ES5152300348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacbfdac25eb5c569aa242d1a41276118e9d56df4277f5b3571870b98eea236a0. 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/ES5152300349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1203795030662764b2b00f25e32070364e1ad45971beb7213bea640f9796e02. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:51:32Z), 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/ES5152300155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb19a377a9c4cfc144e046e4cb7c68e1434965edb668eb9f87579fb9351dbfcb. 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/ES5152300351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbfb117632ddd49e01a5a7330a6fc71f7638628b76e27d1b5a4b2562d08bf63f. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/ES5152300352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c79e7af6d09a889c32cd71829f8855e12803018a7210feb0e875475c45ddecc. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/ES5152201667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36fd9e117c924d3b6b7f723bb544dcef29f950859007ed969f92f3ee6967b880. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/QZK6P2485553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffefdb345d83391dd2fe8a939501b601b2b962526452010479e3427f7430f960. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-20T12:12:10Z), 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/QZPLR2464351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf9ef232f493a9afd46577dfdbc0346bdcf343ef1bff0f0b0d9b5a92171d9fa7. Chain 2 (Bitcoin): anchored in block 959034 (2026-07-21T19:07:43Z), 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/QZTAT2480735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88f195c76387fa2071bc37e218f13ea37fe160a1c2fbcc6ed3e6d3fc6bb6f8b3. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFF2456662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffefdb345d83391dd2fe8a939501b601b2b962526452010479e3427f7430f960. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPLR2464351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac174aa3d51a7b20819b6cc81b0a4704b3b509a119a0014d15ae3322b38b417f. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFF2456663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf9ef232f493a9afd46577dfdbc0346bdcf343ef1bff0f0b0d9b5a92171d9fa7. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QZTAT2480735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80ead030f2a433aea0ec2430cb7e55657dd71f9cb5b8d1cd607c4755e64fe368. 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/FRS182139265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0888091fe6549b9904b6d20ad647f437f2b5f9586da837726b83e7fb812de9a6. 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/TCADG1727714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7843b82e39915037e5b62dd487babe7d59bfc5fc70fccdca377fa3ee7188894b. 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/ES5152200206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d5edb9bb5d5af314237bff4b21e0e05e9a7a479ba5b14412d0832c61575f0c. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/TCABQ1335863.
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