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 0xf74e4d26b682a715447d3f8554bb2078a6dac7998aba2d931c6f0974a06ff734. 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/1154e31f-23db-4ad5-ade7-a2439a6f5e8f.json and https://artists.proofprofile.net/proofs/artist/1154e31f-23db-4ad5-ade7-a2439a6f5e8f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
La Mulata - Mirala Como Baila Mi Tema (Cubaton Edit)
La Tuba - Mirala Como Sude - Farandula Edit
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 0x90f81e9e5a94d30e1c6b4906cb69f5a6740b7ff51107c7d857c3f990f790b8ff. 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/CH9180773414.
La Tuba - Mirala Como Sude (Cubaton Edit)
La Tuba - Mirala Como Sude - Cubaton Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0f7f901426010d19a095010b2ea7d7029c71e65da1ee78ceab3b85fc830a2e5. 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/CH9180771414.
Sacude y Saca Petroleo (Repaton - Original Reparto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5b79008908f327ef246ce8527237be24d1c8076224d81055d945e5a41dba252. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/TCAIY2421417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea8fb1d89a15138e22547bfecd59f274d44abd755bbb056bedf15cb9259d903a. 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/TCAIY2421421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe40eb8e3640773b34988278cb2cf91dbcc7911de69b6d669da373a25b082ad29. Chain 2 (Bitcoin): anchored in block 958573 (2026-07-18T15:49:54Z), 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/TCAIY2421423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3de97ddfac6ff7c1cdff11995b3b654942255b4f1cab2cc270dcd808b561e0e. 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/TCAIZ2421425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc494a9d7fb97335548e19f01475546044149abf7e85b1f1ec2cc13c3530fe28b. 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/TCAIY2421426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e856c2dc7c91018f119b2491fbd3e1d096c732b85b485fab6d07c0c3e0f147f. 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/TCAIY2421427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ceef23e355cf3430789df771f008c744e175e045e32222bc0406ce6309c2ab9. 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/TCAIY2421428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30f4e576a31596487fce5aeebb6f6418caf100627493e52e35456d870074b1f7. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/TCAIY2421430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb21b05bfaa6a4a0d986f44fa974a2a9bb5a0b135d20e748e62b7bf0bb06878b. 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/TCAIY2421433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b9fdaa82c3b89a141339fcbc55922d87cca0b02bade7605a977a111b69e4ba. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/TCAIY2421435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf617887609c07c17ad92edf0e13586ba947c2691022855f8152062af998cd0c1. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/TCAIZ2421436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb5626baabf66bc029d77438707334de5dbd4f65807cb2bc32dfff3f2e78d1f3. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/TCAIY2421438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd071f7a9d08ea6d2ad7776d41ad3edded80cde9e492baa6d96554e385003fa39. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/TCAIY2421439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1f9cbe4a7bb1d5a77232a46a76999ded831966a90fe47b5c855d4a2b372b2bd. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/TCAIY2421442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae4e6a2d09d276e1741740d1004e822fddfa08b0748551f71e8501545deb29b0. 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/TCAIY2421444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fd0b2a5528a679c9abcdf77ec2afe2588a7b7dd2adf7f3a11bc9b99fdfda0d9. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-19T22:48:51Z), 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/ESA011305769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x572d879203dfc70e009ff2e35c3520acd955e84608dafab703335042775a18e5. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/ESA011305744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9f1ff9eede40f133d9406acd4e6111fccde1517af8db5fc65878abd18aa2292. 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/ESA011305776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc361603f81ef113d0d1425255b552629d6a68786b41fc91b307a779be79f92d0. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T09:27:35Z), 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/ESA011305745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfc0d16b5ad372e635976c2c85b81cdcdc13faa68804a64dd0903fc0f6797442. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T09:27:26Z), 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/ESA011305771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfc0d16b5ad372e635976c2c85b81cdcdc13faa68804a64dd0903fc0f6797442. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/ESA011305771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc361603f81ef113d0d1425255b552629d6a68786b41fc91b307a779be79f92d0. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/ESA011305745.
La Rumba (Remixed) [Repaton - Reparto Cubano]
Cuba presents CUBATON (Reggaeton de Cuba)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90fd7f47ce86c158a0b69e765546afa0b2bad8c722feceeaab12bac1bf19c86c. 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/CH9181160037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96546790e197e9b944cce8d215792b7225b279e0a46b274044145edb63faaba7. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/CH9181160045.
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