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 0x50da16bb18d207f25e08c089c821110e8f2e2241f4135967c92a5fbdb0dd0583. 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/673ab26d-8d90-4456-b06e-d588df92ecd1.json and https://artists.proofprofile.net/proofs/artist/673ab26d-8d90-4456-b06e-d588df92ecd1.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 0x8f73ff0d62ee0d4e74f222449be638d1fec7e8343e35fa199d64e72be3c4671a. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/GB8HK1515211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2836571d0e73cf7f5d320467e1870ab76f89aa400e0e56af58e9bb7d1dbb8b71. Chain 2 (Bitcoin): anchored in block 957810 (2026-07-13T05:55:46Z), 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/GB8HK1515218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x182309028fdcbea145b34cb7bbaa5b7470c2249d066afbadc502d6055da46299. 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/GB8HK1515224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb73993b2f50d720c69f611a041ae47f0bad8a6f868234199a2920afa47f9147b. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZ5FN1892178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f2f55d799d8f16de42977f1b0052166d0574f7027a2da88f0ca5708191a939f. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5FN1892187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2994ccaef9428f2b57ee31af004a62cd157b018b00b0d133446945b4ebfab27a. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZ5FN1892188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7889cf0b90b865fe94bdc799f37fd365cffdab3fecc2aefa38d3c6b7f609f357. 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/QZ5FN1892190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa76fa510fc88aedc3368eb2255bef30923b9f14b44d4ea748fa378aa3dde08b. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QZ5FN1892193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01cefa39443ec1ae0f5251fdba182d2ea7e9bbd2535c95d5227f24d7d0019c2d. Chain 2 (Bitcoin): anchored in block 957625 (2026-07-11T23:15:09Z), 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/QZ5FN1892194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ea48b05aac6adf906c19c662c2b1c2bebd8cc5ede83f70c5ae57509052348eb. 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/ES31E2202273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b24899a5fbdeab91583a6153c5dd92b694b4d80daddd6acbfc89784f202d40e. 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/ES31E2202274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb44f8a5e6dfb1bef6421c0fef751bec19c371bc50adf421ba390f3b2d133fe9. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T15:11:28Z), 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/ES31E2202278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1489fdc33befe4c7e0bd353f4a87c1d1af4d894b4f005e54d7c4020eb0c8e888. Chain 2 (Bitcoin): anchored in block 957620 (2026-07-11T22:32:56Z), 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/ES31E2202282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b6309b748d80eab9912af7ba20050847ded442f2f6ab409ff3070027918fb51. 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/ES31E2202284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf488de36350287d3a55958330138c2b1aef28bc0c3ae9ac620ecb166f5f0c22b. 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/ES31E2204898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31c74ddc9a9b99031baf4da878d51ae5025b7a101eb3f6e20a540a484c551bb2. 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/ES31E2204899.
Popurrí Rocío Durcal "Me Gustas Mucho, Que el Mundo Ruede"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x470d7512e87fe83b58e0ecf8e823b8e824c0191e9c989c0a436907787dde0743. 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/ES31E2406629.