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 0xcbbed18aa61d724a525daeffb224d4be08c4bdbfe739854a40ee6487e40d7db7. 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/bdcc96ba-baaa-462d-a65c-e6d0cf56c62b.json and https://artists.proofprofile.net/proofs/artist/bdcc96ba-baaa-462d-a65c-e6d0cf56c62b.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 0x3c2daab2eeec1a0cfb82369d2656fc5a6e9334c14bfd4a9bbea6f9bca880d980. 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/MX2620776729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ae3a4be51c82eeaad7989fc83e603c2620c87dcb00485348d11d50a4d470c35. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/MX2620776740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee9f77e9a7dd29c28fe13b53d9300a548b8e794786978b7d5aadd435f43de71e. 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/MX2620776748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc518b6726fc93399921039224af4fbb19363b710faafb132e6c40fd7b3134d15. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/MX2620776731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeffcba0f080935659b0a1c6de885682801fedf7b001b36e16e45d1d880ca47d. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:06:13Z), 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/MX2629679532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97cb872abb6ca0f90562fb0012d650dc4c03ff0583832662f2de528b4c2a9f71. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/MX2629679545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce775c4fb9ee95b2861b847a232370ee6e50bbaaf6bc281f854000ec0f4dd0b8. 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/MX2629679531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc772d14a0053226b207a4c6ab0b9f36c4073fca63de5b3a1b533b5bd043d4e89. 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/MX2629679533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae09c4def65cefafa627db7c6aca8a3a2a8ed5445e79cb642b018446c516f1d2. 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/MX2629679534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc4aa216281b4c9466a4a2bb50394aee2d216358407925409981b119bc6aa952. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/MX2629679536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a896b54f68863eae13b30c693924bc46ea52da2a8b41ffe9e941a7a5fe13645. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T11:10:01Z), 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/MX2629679537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadd28c1cfa817782929dcb16b9cffe2a77d2b1bb58285261fea2efe62d49ac62. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/MX2629679539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadd9f4045fd2ca7370f00e752b59669ac875c7814df6381937919e888f4e66d2. 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/MX2629679543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97cb872abb6ca0f90562fb0012d650dc4c03ff0583832662f2de528b4c2a9f71. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/MX2629679545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6114482d8b585df04d1c9de55a9691944fc0818bfc6d7973fb54a8e62c1049ec. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/MX2629679548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2f251ec7be0d5080cf121aa61719610c207362f66ea83f5801f89b16d7009d0. 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/MX2620079869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24bdfcce1ed6992896bc939f79ef2d74348b7bd5661bf51aa05dddf600dbd26e. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T02:46:58Z), 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/MX2620079871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e68bbdd46d387f263f4d0f4fa6951c0b38b3b09bdc8defed3984b01d596f2db. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/MX2620079885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37085d585d198c157f3f9149c136fb4b940ded34e8fec1780f9f53b2b59cdfa3. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:40:40Z), 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/MX2620183196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc431a79de1940407810aab44ec02d1abac83ab8e564caf8839b7cdbca06373e3. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF550505779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f155b3c2f64f00fe231cb5fa4def2754698acdae9e818f2867e1e8c2e9cbae9. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-20T12:18:34Z), 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/MXF550505789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83cf9f57595ec1aede067560630f5ff8365a3ecb77092b85ff2cb5bd28d2d0a4. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/MXF550505790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9f14b3d66559305e954d729944c6d2ec36900bf8b658322099370d9089e9f5a. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/MX2621273927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8adeceb7013b954b279dbab63115c594a01c7ecb3d37e4630ce6e8e78f8e8bf4. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:51:12Z), 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/MX2621273928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea09b8e72cf2c8558b6683369159875f667b4bc6b2a2e21960eb6cd0a4dc1594. 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/MX2621273929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e383ca40d916eb2fdf6490c81b055b38a1695b22a9d8dd9b9ba168c83509393. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:49:16Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MX2621273933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9f14b3d66559305e954d729944c6d2ec36900bf8b658322099370d9089e9f5a. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:45:54Z), 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/MX2621273927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea09b8e72cf2c8558b6683369159875f667b4bc6b2a2e21960eb6cd0a4dc1594. 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/MX2621273929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf639b361d7d111d1bc45e6cea3fbb280cf4c6ba8a3eb039f14ebd06110b0fec5. 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/MX2621273938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a736105f57b745ab3078d5dfad6d6119e710a88f93cbb917e40c540b3491b3d. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:29:15Z), 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/MXF550807569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7ac171e68159168c319183f119709313d1210e81c5c9f1e98247370aebdf2f7. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T19:05:35Z), 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/MXF550807572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a1ea1994aa320543694a682c19471860a400a7a7f8129242190df6defdfb1de. 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/MXF550807567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7175b76fa89b1349c2b72dba3f4d161f304127f3b15e332944c4d5ae61924b3a. 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/MXF550807578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63478e9681fab82c37fe3cb980de9bfee73ab81e88f58c5afcbd8584fb98b5f4. 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/MXF550807574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a8d4a80decf566a1252d9df0bab92017e1096ea6338a3b6bf7824ce8d6974d1. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), 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/MX2620183178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a48c3a6e34615f2122eac18343177c9d734189a2d3527540e7c8d82ec67046d. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:25:14Z), 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/MX2620776736.
Recordando a Diego De Cossio (Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b18be3d374b46af57ea6e75dc2b7450bfe63e0f205d0decb2de741ef6a2d52. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/TCAHS2345955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd40cc9c2e53ea38a34cbcb94817181caff8a78bf323f4fc127097055199319e7. 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/MX2620776755.
Pedro Infante, Cien Años Sus Canciones Instrumentales
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3791ad0c5f7934dfd5d8d57da6a219d9560e4dc008cc0e2c1feb865737be65e. 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/MXF550900307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58c55f0552dfedd1b8ed8ab974d48974673d9384a130d769ee80b7dda8d9756f. Chain 2 (Bitcoin): anchored in block 957034 (2026-07-07T11:52:37Z), 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/MXF550808138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f4de8f0baebfa6c6dac76d2225267fe1b5c870e09ee53bc73dd1e16e62cd694. 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/MXF550808377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9348b890efc50895ef85683b01037a271723f70a054531e91174fad10667446. 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/MXF551030873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bf1cc104baeaad2193d9570d6283237ac7d81ef3fd739ecdf9092d16bdddadc. 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/MXF550808148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63478e9681fab82c37fe3cb980de9bfee73ab81e88f58c5afcbd8584fb98b5f4. 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/MXF550807574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b7f3735d83998634d4c28c0f0e7afcec5a0d40ba7eb9c779c5710fb5cf6389b. 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/MXF550904950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9935afd6b3e0fab5ae5cfb01a421dfd212a9db0aa917a43fd1dc5605dbe0558b. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-21T20:46:25Z), 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/MXF550808367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd5be6f06d71e628add21b74a847cccc52510477566ffc43b1d45d0e9f73f7e. 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/MXF550808146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2746d8bfda4c636806b9ce734e326d3001dc310a71975582974d7a1af5423a96. 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/MXF550808223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71f46d04fa965d320d9c0b8361dca13f3b14e7a6315c4d0e3f872be2622fc840. 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/MXF550808150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1411582ca38df53545603e4931352360f3266830dc4d81293a7f7997b430ac1c. 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/MXF551257408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ed13a419d8b52935bca59621d673b6e1722186fe568067f5190db0c502ba7b5. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/MXF550903174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23550307761cff53969c249403feb2ba0783820df4d697d9ac85a369e843a6f9. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:43:08Z), 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/MXF550903474.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dcd5142fb590fed096cca87a5d3df06b0796c56925dfe7a9f05bef8a570c0ff. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/MXF550813400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x434e94879538b26f1dcfc1faece6971be13335c2e74b388f5f3d889d01967799. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF550900303.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfddd00eee947468f130483fba4473e0fc0f567d0380c795375afc7ff450c7d98. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF550808395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb60b0fd7cb5103aae503e391863db93490d785ac74c13d0caeee6c0bd16ad167. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/MXF550808306.