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 0x109fafb34530c3eea506cc50c74d092babcf2c05ad5d80e0d9276219be13421b. 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/8a9f7d26-8e9c-43e7-a570-096b8d60e6bd.json and https://artists.proofprofile.net/proofs/artist/8a9f7d26-8e9c-43e7-a570-096b8d60e6bd.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 0x3845770f3a76ed4b0392cab78430da9b46750ea470ac33eec691b7b237fb62da. 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/PEMG19595001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf06d06ac5e076591feb912dbc2a7fc34db711b5d45a47c757cb7dc81c495ca2a. 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/PEMG19595003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e68556e1ff48fbad6cc389f265f58632111edd6492eb7921f719b77938bb820. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/PEMG19595004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3e0fec4e61514621aa903d60ae474ddc233ca24abf61da07e69e74426e58e5c. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:29:47Z), 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/PEMG19595007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dd41e91b310e0b073c8124409863262e7db529450aa79a7e9d70d829f9d8ba9. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/PEMG19595010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabef17c06e8bd5e52e4c673dcdec408d536f73f05b7fed7f6ba6252279990d8a. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/PEMG18787001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9942770c7410f95e833ce67ea824eb791264fd7ad9434572a7ea86e3656e648d. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/PEMG18787004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54fcc105dc53eaefb8ff17dc396b8c9b46fe7f62f84481a6d818358ff82b8ecd. Chain 2 (Bitcoin): anchored in block 958971 (2026-07-21T05:04:56Z), 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/PEMG18787006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff9e0afe896579186ce8f9ed9e5fc885657be13c72f0301b87ef50cfe7f3da0d. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/PEMG18989001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x510c06a11925e70a480e24c2c3b845d12df4bed0f5a96c7819e341fda7522e7e. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/PEMG19292002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c46f6a2725bbc2a6d8f14bc3287201022f3fcf2ce719122c7c985a5dbff4449. Chain 2 (Bitcoin): anchored in block 958625 (2026-07-18T23:11:57Z), 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/PEMG19292003.
Akundún: 30 Aniversario (2022 Remasterizado)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a60bb11574fa3bff66b3006eb0dab841c1b60fc9648e2bd4f153b4871c6aa71. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/PEMG10512015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18430f5e595cfcdb005620d5a49eb1aa46e8bcc17c09372aa6b6008ec8cd4f9e. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/PEMG10512014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06d5863f8c4477c0a54f4378f2d81a502c66b36a99ea0cc5720823e6edc3036b. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:02:41Z), 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/PEMG19898002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84f11c852a3f06e121d571205b61f8f7ec44e98f5422305ba8e3b40423c94d53. 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/ES71G1838155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe003a317bc55967b598036aac74e9f691306a539e1993c55c6d18f5613628e77. 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/USDY41854957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91025e48b3765f39b7d15f633ff01e8554c74028c63bdd79ec2efbdce3fa6981. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/USDY41854967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf760bbbbdca52967b122699f00d6320d77007a654deebec5c9516c4e1c743d33. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/PEMG10613002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x642fad28b85a2a836febc51880a7ddd0b885d9fd65e2e104f0bf8caded198734. 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/PEMG10410003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d94dd3084bc3f9015eefd25780d80cd1ab715586202560aa185ba05b47ccad. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/PEMG10613004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x417dc0e8debd4c4017deab1c03ad01e8af721b829154b2f4db3ea4359e247ee1. 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/PEMG10613005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca213cf32ddf0e341be066604735a0602bfedd9e7288aee46b2afb5d8a78952b. 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/PEMG10613006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd259d59b6831920efe095298ab2df06a597b7a751fb823b0fc5c2e15e628f0ad. 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/PEMG10613007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf681238fe45c9de523198c151cbac92a204c8fb3a6e4776c2c1b7781233e9c0. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:43:42Z), 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/PEMG10613008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x060e99854b57ecd04eb96b7e296ebf7aefcd4b725855fd40d3705d82c83213b9. 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/PEMG10613009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17eff73a68ef3319da610f7ffe4360afde441f02801b16877bdc582386d1dad1. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/PEMG10410008.
Danza del Agua - Tusuy Puquio - Original
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12c167185d4269e5aafe2f9cdfa6bd3e823f8124806185ee709909b01afe83ba. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/PEMG10613011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ee36467c7d517b91c7ef307aac8820aab16a8900c7f410ad18adb9f6d7cca86. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/PEMG10716003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5c238403fc9f4664193ab4a9c333dfe29b8fa6fbf9d35bb64e7e04b58cc417b. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:22:06Z), 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/ES71G1910214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3477157e4363e8bcad650041256753647e46e3bfafc302cb2f3c190481baab32. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:17:50Z), 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/ES71G1910221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87a66251a0adf5978e7563322a6f1058dba6f49875aa8f31fc7f0a786d213406. 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/ES71G1932427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92a06d1bcdb2fe4ecb3173256b3e164ef89faec06d2743f8074a6d1c7934dc7a. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G1932428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e6f61727b7cb2cededb55cb5b8caaeae89de190547d03b7e1c21ba3ce9e3523. 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/ES71G2039357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d21ce9530422d182c2572ea54357f3b102847d3d00f6e2a32f0fb8322c908da. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/ES71G2059167.
Danza del Agua - Tusuy Puquio - soDPM, Yong Jai Kim Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e026e39ac0606df7d4731b3741fabd55f1514aac3506baa5933806e12a52158. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QMBZ92522374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86d21380d77e0739a2cb42a933da04f6c0e880b8b3202aba2a4b5b31243d8d1a. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QMBZ92522377.
Divinidades Andinas - Tribilin Sound Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4364849b0874b2c67f2faac2939fe5cdc08e97a9b82f1b33f24e84217ce2920. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QMBZ92522379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d6e82c8b27b6a4edd0f99130d86050fe0d12da01076b19151d81770fef9643b. 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/USHM91897900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f3f40f3b17493a6c59207bce3d55ffd114c247789c965d3f8cd484341945446. 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/USHM91897902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03b5afdc19b11c6ed4a3942e01f1e69c32853770b9c0697861954f6e08989e9f. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/USHM91897904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x194d3af21decc4498eadeb8938ca8bf5037096f0d4dc34f3c72801fc5645bca7. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM91897912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc159a144d5ba7e8872220afccf9da3f8e9d89e4428852e72c23fc1cfcb412ed. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM91897914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c46332371223da87eb2ce4ee03af8471ef9cb34110f023ba81284a72a2a755c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM91897916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b68a8962d11cc4519fb708e8a62704636c834654fb92cb39790ed78e5a076ba. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/USHM91897906.
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 0xe5d2b4f2b5662e3f910aa400c7a7c6ce697af55715f3a2e31a733e993367f3bf. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/USHM91897908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x050710f7b373378c243dd97383c63dbe74d6a2bb254c8e171fdba33a51693fba. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/USHM91897910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30ce808e97ddcdbc8f453f4e87f1255374c7e26a7c3a9369fe0327ae24d95530. 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/USHM91897918.