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 0xcd87d62c446c33fe98d59b6579e951981527c40bb50d126b595c6c4c82c3b3ab. 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/28404da3-ee55-429e-9f8d-a83c73d499dc.json and https://artists.proofprofile.net/proofs/artist/28404da3-ee55-429e-9f8d-a83c73d499dc.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 0x63fd375eddf9ccc4730bac5866a89df473ee78998edad3c1e07c1f430c316687. 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/QMBZ92029704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd33e7d8d655ea30aedef5b2acccc096b26d65b0ad5394d8a03cdf4dd8e5a82be. 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/QMBZ92029705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68df4d9bf04039e4113a268f8439cb8cb5d81ca187b70348f4378513c2c4fe48. 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/QMBZ92029706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65e139fe9f69458b3c47c1fc84c410f4847bd0cd6c68130185d8befc425971e8. 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/QMBZ92029707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73d3434cf13d04f770e45fcfdf5b8d0bf357274e76dd5c6d24155da934e08168. 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/QMBZ92029708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71f812f1ec951bf1a8406b7a36eaae487a4a22477f0adfd7652af318e4cbc6db. 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/QMBZ92029709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb85c22696640e4d97fb2cd387c83042e8b9476a168b790428e43ffc9e644c20b. 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/QMBZ92029710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8207668973e24268eb93d3fd7a87e1cc7c845a968d04b5fd7f80fb796ad1f45c. 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/QMBZ92029711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a31891c489192fbfa5b85384341e5f145267e654ef17261bbc3d70510bf9134. 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/QMBZ92029712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b6ecd326c8eaa6a74cdd83f13e206fe9462819e012f5636bd65cf0318ae788c. 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/QMBZ92029713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe755a37ea69593bd049077bf965a5f288d4653a549a2699f87dd6ddba20b910b. 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/QMBZ92029714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5f95fdafb80ad3f415a75cbb3206e00dcc4d2c6c978f9e7d8b183355a8c0ef2. 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/QMBZ92029716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd30ff927ed421fdbf3e3cb7d1c9116350504d58d4bc462e3fe8e6f3437e61ffb. 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/QMBZ92029717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5991d7233a9f56f02523f46581eb12cc1936e344f5c574e5a9f1ffad26484d36. 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/QMBZ92029718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6498ab62bd08f54f7f855b75a1c69e704f5bf9cd7c0a6e1c80409e70c181060. 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/QMBZ92029719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d20d30d20df743b2c19b49aa53d626c699887845d3d35fdaf317f57d12c40f9. 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/QMBZ92029720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20437d33ff20ff4f1104550e2022874edfe4a591db64cdc90e0e2c02bf6b83b2. 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/QZZ662405170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10e9e4b0a968c576acc44c76643d53cbdb1695df85f4f9b2517c690903220821. 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/QZWFM2388437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4561afe6c528fb2ee2893e4af630dee2ee6cb3f8bb48a2b853b67ef12e1bd4d6. 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/QZHZ41932965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ea6395d8727da6d897f75c72d358b622081310e46746f8eac5019248e051269. 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/QZ4JJ1650515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5e5ea4f1577244a42c540e18ccab3729974e73ea439ca25fc11152e4bd345bb. 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/QZ4JJ1629166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x310789eb29af15d480ee60f9baabd4c874b1c0047f5e0fa9c023fcc422acdae4. 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/QZ4JJ1629167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04a44e1ce0e87ae81cd7359bed15ba20f846b743d387dd37712000a8cb6211a1. 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/QZ4JJ1629168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa66342e74351b3bf7b140f04b642ded1bbdda2eb37384895475e20f4c4e0c081. 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/QZ4JJ1650514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ea6395d8727da6d897f75c72d358b622081310e46746f8eac5019248e051269. 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/QZ4JJ1650515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1415a82cbe6db51257055fb219e0adf709518a10e9f89bf0094b14901d8369f5. 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/QZ4JJ1650516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37e93a38c994dfd8dcdf9b896861dfce75054901eca9141c3b8214a2613d0e00. 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/QZ4JJ1650522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99498a0661cd177f3b42c22d50fd5011848dc04efa4fbdd503f2c09dc924bcc6. 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/QZTAY2331372.
Los Rompecorazones Vol. 1 (Teorías del Amor)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd869e463fec2446f50b26b161b461081768e7d6b48f5d618ce7620e5d3e87e9d. 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/USASN1401268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x512be30bf12cc6e1d58ce125bc53fc0d5ed6d3b75520b718784b0623887c3670. 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/USASN1401269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa662064c8e9c508458023a70efb346ba894c46ac91f0d9bedfb82155aeb0af82. 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/USASN1401271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc02cf352df228ac2f7c930938f16adddb17346da492f13d38b00470a3527fc59. 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/USASN1401278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e9aac5bb4911fe4455b0a5d0635b7e44c9622d90d048bfee28ee170db21295. 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/USASN1401531.
Necesito de Ti (Remix) [feat. Cheka & Tony Lenta]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad526e0a834b782c67deac40ce73d57b69bf1a31ea166bffaee6c156ab7ea810. 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/USHM21497615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9c8eb02a16f6468380a32cb6e886474dfdadac1aa753d7f5ae505dd3df71c8a. 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/USHM21497625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x519dff85efaa3d4f6762386b424c750a5247e493f031e204cd74cb2b88cb00c4. 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/USHM21497631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dac52b75272a3521361efd0aa78e69d0acaebe1958a48b04f38affcd0cac7e8. 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/FR10S1498007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x600fbbb886999fda91c52cc50371bd2ef6509cfb913aeb0b4204ad3cf4d5a40f. 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/QMKXD1803026.