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 0x071bda514d3cde6e672d3f7b12ce369578fb08ff28fe67bb6b5faff58d475c6d. 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/cd87e890-a95b-4370-9e0d-b0337f37c6fe.json and https://artists.proofprofile.net/proofs/artist/cd87e890-a95b-4370-9e0d-b0337f37c6fe.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 0x01a76997eab124409d4e95ec1550ff1e473689bcc9c7ae016b44043ca3730de9. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QMAAK1510010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b285711c35860aa018bd596f37863bb408636486080fea00dfdd64629492829. 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/USL4Q1918927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe3679c50cceb56453d777b1a582b170260a1e224c3613ad7894f1bb31f45559. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USL4R1942007.
Something to Cry About (GOLDHOUSE Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ec7153fbfe0dc181fbb34e7284f61e6e01c86927762c07ae7056181f7c0d490. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/USHM82036679.
Dark Can Be Beautiful (From “Song House Live”)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x290cf8f02b9af3d537514c31e91b4fedfa5ba626aa6a0fedd0101a0e0852ed0b. 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/QZTAT2247414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67d667233f805b49129c6067da672155e0784b72ca149e29e44fe0c592eeba0b. 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/QZTAT2247415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47e2a84ea404268ad490960130923524e8092711aaf6e69afd43f4d868f00767. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QZTAT2247416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5299006104ed49f89bb46102170702c0e589ef4b3502aee64b0d1870c0a9c3a2. 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/QZTAT2247417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e82a060cf1245e5e9583bf78670d1dce4c799ab2ec124ca08c08c2dc09f1c7e. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:34:31Z), 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/QZTAT2247418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x833dccdbf42c551089893f33f8c4fde2b0947d31a2952efe6e06e9a44ea7d62d. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-19T22:48:57Z), 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/QZTAT2247424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe44c722181f546df8a1961ae2dfe9dfcfb88eb1ca839340d09058a3ec0892e8. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/QZTAT2247425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94aaa9d305192d1112cc73dc374e6dc7d820fa9d3f6b9f9f59ddbf11797bf0fb. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/QZTAT2247426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2f7f8386e51b73a11408550aacc2f882b8ab9f6eb5f3cd106aca0445fa1c982. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:33:07Z), 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/QZTAT2247428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0959b3f9678828df1651ad7c97764cfba9bb5761233ace22b46a03b935b5d9b6. 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/QZTAT2247429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90fd2a32a03b959b6c71c6de545e00b4c9e4d00a376c859ffc26ccb49866256a. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/QZTAT2247439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c23a535faadcd880076c15cf6452e0345b896aa23ad3d1c998d55abb9cba55c. 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/QZTAT2247440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd85cb516aaf544174f6c5dc5a05523ad9c2ce0a63363a748458e88a01ef0e98c. 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/QZTAT2247444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x996a33f32de1fae24a1dbdbeccedda82e4cce8c20e4cdad97b30a232c9fea163. 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/QZTB72225606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x267de4f103be935634a23197a87c985fac531cbdb5ff93f9c9632222d32530dd. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QZHN82353190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e1051f2f58dcfa5980d13af344b26f2afdc16956031587d2cc866d4adf566d7. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QZPLR2325064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x506b56fc0e9436f5a19e97014c4f06f82b4833d467268ec48e7212f34031bac1. 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/QZPLS2374157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78900fd9cd3e9610f3de437d1942c1f803bdf7b316b286ab3e03634f288cce5a. 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/QZRP42304720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f784f3785e7466a653bae6bd2d3eb522affecbd0db26f38d84be85ad2d4d25. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:19:17Z), 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/QZTAU2399395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x591beca14a5544569cf2f8e797e0b60087949fb7f7293191997b160253afdd56. 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/QZTAY2380684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea7bceb8219bf92bd4bd076658d9af4faf0e72e151e471362c1b6997a8cf57b. 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/QZWFM2320392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5660b990129b687bb824946f56c6b28d71d7e03fb270ba827b2d7f30ff582f5. 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/QZDA42465763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb608aa2e1001f6000f55b3685c2a22397236465893db9bd9e5567bb9509f6e97. 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/QZDA82420961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x246f3382b4ef7e77b083788ea0e3b4923c9ac7b8b026e1f96661a45d985afa9d. 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/QZHN52472563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d58987b0064e9db3a2c3840492523624ae5618d73e08d08e06003f019c4fe73. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/QZK6P2455739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51f808ec3ba16e876f7f491535fab71b741e5ec20db6d62122a45c59a5a3f657. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QZMER2476744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf06e9e944333780794e5babd0e734d8b21e8bdc2f17fe6d1a360c4b977d1e4e6. 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/QZNWX2456286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76cc9d667f5aed1d6dd98276db94a915631825d97b20b31c79952ec13cdadc9a. 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/QZTAT2476986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc2e0631282869471b2c8dafd7dcaa1bb2eab679bfb879b1a7e13cd56e11385f. 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/QZWFE2413124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a0d6ffc66b91fa5f9bf498b738324e4dfff0e40aff92b5c427b6077b3a6ac44. 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/QZWFE2415348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f689350f7b55a29520155ea05176444ece520c9b9127ed1996a136f02ab168c. 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/QZZ762472038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa282a0f7fee6c490e480303bc072e7977310d98f765557d599455f035b85a74e. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:53:29Z), 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/QZFYZ2581221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x079ca87fa12a4348ecab7f95bcd39fece199113b3cff4e0419f14e8455bf9361. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:04:25Z), 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/QZZ7T2520692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c55f8c3611d97639b3609b9cd92fb6dc64beb18f538d0a0465761616c484502. 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/HKA972200136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c55f8c3611d97639b3609b9cd92fb6dc64beb18f538d0a0465761616c484502. 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/HKA972200136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c55f8c3611d97639b3609b9cd92fb6dc64beb18f538d0a0465761616c484502. 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/HKA972200136.