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 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 0x9ad5383151501122d60580309cd8a651bd4505133d82e17fc7984a926752e5a2. 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/6877a5bc-a2fd-4c9d-909c-02e4cf62974b.json and https://artists.proofprofile.net/proofs/artist/6877a5bc-a2fd-4c9d-909c-02e4cf62974b.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 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 0xec31a016ca29a60f049f813cbec1aadec675b3a4b4a6a116a0cdc4b910f7b72c. 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/GBLPF0080500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b01ec20068be5aa21933ddd19c8e835df5fd1c3a15d039b9cb2ed3514e24c65. 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/GBLPF0105504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x108fcc75288d513f2b03c900b30591088f87f9a8f8e2181472364e9f1bc2cf9e. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T06:31:40Z), 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/ES7431702134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42b5a37a79374ec551d01d3449929cd9607efecdda3d47f6178fe747d351e2cd. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/ES7431702999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a4d12c0d4d08046c5b0cd9a78d41874c69c087605de5a724fff4ab1d55a4676. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/GBLPF0600427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1c73851d473935973afccd82a90f41da9b82b10b72611709fe2260dbd89e235. 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/GBLPF0600432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c32d3547b0cc0a6043e53abf8e6b0ff91ef8f788a203bfbbe5b73e93d3c1627. 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/ES7431705316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9aaf495dad939f096a48016a4abb0771396baf755c1697b8a911a2b0306572b. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:40:19Z), 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/ES7431705326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96a91258cdc602634a490e045114d3abc8c33fa0c3c70867e17c8f8bd4325a52. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/ES7431708998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e92388de5e0e6cdd255385a51129122223bb505e96ef4873945259126b22685. 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/GBLPF0600928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4120e045e25d633baf89c316984b4ab852161e9ec0a6d1b02b4733ed2d400f9e. 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/GBLPF0601748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31c505fc1f4225f4c44d4714a1667b3356dd2297f8a887ea50df1f08441a72d8. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:45:12Z), 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/ES7431731055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e66be2a58aaffa7959a9f501ef0ea718b73f532f122a19496b6f134366c81fc. 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/GBLPF0604820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb60df95d88e6e5eee7dd0325f1f498cec64e378e3b1e5da4304eb09db8e48f99. 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/ES7431800052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e0e08608dcb2f4f577771af429881dea0f26314c9917acd1358beb4aab56bc3. 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/GBLPF0611446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2259e4495bd9f46fe8986374f5107cd4a117fe0f4b8084081a7639da3b5c61a5. 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/ES7431800308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80b9df6262ddd7e10bcd079ebbf162f1c173da177a5ccab715a1692f807ee73f. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/ES7431800316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14fad9bf6c3a77d51dfe8cb081bfe9b3c9c6ae10faa7c5acce97f850434222dd. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:15:38Z), 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/GBLPF0229310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19dd3efc29b62ce46ea7fe049eb6da5b665894708f02d939377b8375fd6651fc. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ES7431920093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cd7ff02531d55b1f3508a04dc174b33d66a1498b6e63d9275a7ff569d7d5574. 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/GBLPF0236707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe88ceff2d1ed7e7bb0230736f9ae43b32f7ce76e010608174285f87d904d7c67. 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/GBLPF0241319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab9223940d6bf5abe7e415c9ee7ec500922c6ebc4e79bfd54729008a4e8637d1. 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/GBLPF0246666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef24fb2e35fa3cc2168aee92e65742b4cd2ac3a421bd0a50730388fd2d8dd75c. 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/ES7432000070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb15334c4d6999c7930cadb930f6c207dbfb36aa7460511806b2f08694afda9a1. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:47:48Z), 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/GBLPF0250231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45555f2cc7123343b555d3ef86c3893b53a87a7ffcc1b8da34bda1674b25b1ae. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBLPF0291272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72af4a92639764af38c65c4db05bba37601f246e40117c48de3c8cfc9a01676d. 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/GBLPF0256114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x933795e7db6ba06bb219b9a22be9ff52f99974977e5a66d675a7849fa4d1950d. 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/GBLPF0259782.
Como si fueras a morir mañana (Piano version)
Como si fueras a morir mañana - Piano version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc851e6379d6b30344fb4409dea8574f723582bcdb736e353aefd2ca3d43862a. 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/GBLPF6792214.