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 0xe79b94d87d476964ef7006abba7c1873c54000c9a7af579dd5defd335484517a. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/adbae56c-94dd-4f44-b9f1-5a6e1e75a28e.json and https://artists.proofprofile.net/proofs/artist/adbae56c-94dd-4f44-b9f1-5a6e1e75a28e.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 0x1ee565bfea142b3834cf96385b22e36843eae7e57d19ce6f20eafb0e4f44b7a8. 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/USX9P2459454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e18383358717a9d43bf310f6f7c15ece7da296f05aa91d776227c01d0fa9f58. 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/USX9P2459455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a617ebc7df5448a372b204d2576c85d325a8c1bd85d08213aa4d1f64e1dadee. 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/USX9P2459456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68e1161ce47975aea13bcab39976f2ea9d71fa0aba67133a3fd14156b446c288. 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/USX9P2459457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cdf5874e1019a5e7e489bfe68407ee1b2d3f25bd80c25eef3083554ceb94adf. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USX9P2459458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38b638756be6c445b4dc5f36eb5fdb15d0d390193fdaad28fa31a3d7a61d254e. 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/USX9P2459460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd508a8c1df41334ebb8687b4259af2a73eaca4724d89b7eaab47379129cb38. 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/USX9P2459461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe52c03394f21ab01316d5fdd1b4ae09a5ef9390d2293cd1d65736e1b4021cef6. 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/USX9P2459463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73b241331af5279875b58c3a5872558977267ccbf247fc1c9e6b96480b7f13ee. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/USX9P2459462.
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 0x3e9c58d9fd1eec11f7a76ab11847a936a499450325ba2f018c54b2ea83a12b86. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/USX9P2459464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89ffe926e624174081027b58a5dd6b17cb1e35d9a9811d8f852abb09ecfbcb21. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/USX9P2459465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x408c0b3563d408e9085097807d398b18e175dc31753712218c0a74786f2c9710. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USX9P2459467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4d12031065f5972c989ab2da9301eb8dd065337b0d867f551333013d2e53405. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/USX9P2459468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc6671c124dfc9612ce4ab09dcc9b4cda0f453c008549d35d1b4f1355232279d. 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/QM7281585575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4089692b30c6311aa9301177823bffb80502e9d2638889496fd6272a55effbaa. 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/QM7281585577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a95711a5587d3661d29f519df27914142c57b371716c9f81f98599f266d2ec1. 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/QM7281585585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7adb7c65fc951cfc8157ce77c9a4b70db08127065be8be907623786f8ca60e7. 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/TCACW1610734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1501e1844cc5ea944c47cff7fdf322b5989a2e66fa1d2d6d3d622f99954d0f4c. 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/USDY42089011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedd05c8a6fb327416770d4b493b46bdc5ddb46e9bf69b3c2d89611843a2aef07. 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/USL4R2383784.
Por Siempre Te Alabaré / Venció (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95b20a2d6f50d50b29f20ddc0aa23963433f02787dd999295784ef0262430af0. 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/USL4R2383786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x784b1d37ad136a1db7efe2febcbb09739dca0e6357a9320675cd4cacc777cb7a. 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/USL4R2383792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2180856d1f8a946882318e1710612d988577bee2c64b3c899ea1b2187282510. 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/USL4R2383793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1713492f0edc20ee0d291f2605db6b9cda6ae4bdb63e3ff85883c58e2e0cfd07. 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/USL4R2383794.
Solo Quiero Ser Hijo (feat. Israel Chaparro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc141cbb9ecc6ebba29b98ea3dffef5fea54c25de324b07c4f99b0b66707e365. 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/ARJPL1500018.