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 0x9004db16ea5c23b84de02e356678b98a570560f1d2f29f91e1f1a3da3080755b. 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/9a26198c-7f11-4f69-96fc-cc979cfaf17d.json and https://artists.proofprofile.net/proofs/artist/9a26198c-7f11-4f69-96fc-cc979cfaf17d.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 0xb6b88f71dfca7cec7cef6140c34dac583c72101117112012c24d3dbe03fd0090. 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/GBSMU1158072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c2323915a51d527c0267167dd8069b8692f61a2f815e8adee608c2af580b8bb. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:35:49Z), 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/USDM31604801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ebe41b74c990d5a0f6fcafe6c8b9837542489ce324ef3123328ee19106b0b5. 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/CA5KR1580655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2acde4f725a6bff4c731ecf0246d19713307ebe6e58f4eaed7c7afd8b1fb2b97. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T07:04:35Z), 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/CA5KR1812857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba16f3a07485a74b4c32a92d770298bb7dc206db9ce282228fa13b1eae962e7e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR1844869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13f3427806a6dd70054b3863991ae480ec2abd0038cbb6710a4e9beb6d9f1b72. 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/CA5KR1911433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef56200ee668230d495b4192f88621efc24bf894e4f1c58b2813c263ba6b843e. 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/CA5KR1911436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe031db29b41bcd7a9241003ce91f25c4d74924bd38cedab7f8a89edbbd09371d. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:29:48Z), 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/CA5KR1959218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac55242cb3c91a4b63fb6ee17acbd2815e67eefb0339f0ea8f354aeeceabff2d. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/CA5KR1959219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5083171c48da2404080e76e1fbd10ee58f327efcea2f878a026bc8676161835a. 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/CA5KR1963402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17cebcdf69436c9a25c05ab5333ba0cc8054fb72cbba63d0bc64fbfe4f42c757. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR2099383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc800b3e76a8098b5049a0a078fa68fbb0aaf5e3a27c9583a3a0d9bda5bcb3f74. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:26:58Z), 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/CA5KR2136105.
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Spicy Trap House Drums Vol. 1 [Sample Pack Demo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x636505d2dde92234116c2cec66f05b136a405ed2077310344c5778229e95e34e. 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/CA5KR2179512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x384f3ab723f4da63a644038c7cb1b562cf06d95b9b9ee4b5ac47ac8dd3f24aca. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/CA5KR2195741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aaaca9f5297b4a355574de44d96447c295e3d3c6e017f49c42a883b99de9516. 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/CA5KR2195744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b9ef491d9bcb3c0ff675b10076710e184bdd19d161e2d5f33965c55d98d088b. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/CA5KR0023494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c6b1817ff104111ed847b4db1519c905650214caa23561966b821581798d522. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/QZS652299899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e4d596bfc0415ee4adc168b2a81f1278931f064a126781cc4510a71abe52999. 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/CA5KR2259395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x977255387d8c22c9477c83e3e4d2aa58be9311860df6ff7a91d38f422d80764d. 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/CA5KR2259396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff4454690f4540ae468c38af81083a7582fade3e59bc58feab268eb6bbcf479c. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/CA5KR2259397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b844c90d820ffb50db5d7f34e76fbc01e04415049b0e35ae1a36c45bfb45953. 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/CA5KR2411067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45ff8e45466f0a631e655f6ccf2c2ccf087c659066d4c5030da677ea7e41ba8b. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR2411075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44f990280947b17df24ab9c424679140977ff39869d59892754f181b11f05d16. 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/CA5KR2411076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f5fa2272e258524a360af260ab039e51696a31d00f9c290752c154ace59f0b5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR2099380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f9ff46c6a84bdb682ac814562f5a890cc0eb9ef6003944ceeb64a945179de24. 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/CA6D22000151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8364a51566c1b2da3986411f7eb5dd02b3e306a5ed373348428bda6bd3d9e43. 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/CA5KR1935453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f9ff46c6a84bdb682ac814562f5a890cc0eb9ef6003944ceeb64a945179de24. 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/CA6D22000151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4f56a0b5d6db076342fefedf5f041058955f1c749c998f2501a44941b1d4b55. 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/UK7H21500140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8364a51566c1b2da3986411f7eb5dd02b3e306a5ed373348428bda6bd3d9e43. 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/CA5KR1935453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25c82ede60c2a53ade338c6a1f5637751dc03642d7b8c57d59b1204722c7f356. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/CA5KR1946952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe53d036457dcd20c00c3f582df2a1a39552f4580774b3272dfe2c881f878bd68. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR1844857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36f636e0da68feb2bb19f80e9bcd2031170b1b8ea25e2465dcde81980b08c302. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR1822147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1856360162b24c3f5c4789418581cd07e692fc2ed425b993b4b84ccdcb158881. 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/CA5KR1812858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f5fa2272e258524a360af260ab039e51696a31d00f9c290752c154ace59f0b5. 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/CA5KR2099380.