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 0x1f3c5c4dc5e318b9c3f993fd6e8b2001321243abbe600bd56679f8ef71679463. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/32feae02-6f99-4181-8d95-aa45260f55db.json and https://artists.proofprofile.net/proofs/artist/32feae02-6f99-4181-8d95-aa45260f55db.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 0x8f543dcc8d6b3d082ae9d002e04efb2a67f09b4eb5dc70325856d2a233806ae5. 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/USASN1402908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd06e81b9f121b8b1e51f426aa5db01116bc4377fa330d902d69942a35132f05f. 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/USASN1402909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc26741683fb9c4ab4b15eb99660d86a660b80eafa3e8d2c45e3923825ef08789. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/USASN1402910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd90e4b237f6466b296a6b33bac49905138ffc9a22ab411ccfbcf31a22d6f7816. 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/USASN1402911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x674021bc2affa23c79f5f79c72f0223ea7498fb807623344db85f7734e6bb147. 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/USASN1402912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1768d268e82572e949d23c2cbbf6ef0973c75f9ef876cb1d0eff36de4ad8ab13. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USASN1402913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a4a8bea0a790b310966f402b8181d359df91d9631a17210a898eb68a6407ab8. 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/USASN1402914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ee94b2ce967eb51f462b5dc80f53452333289ccb257949e193f35ca43bdb375. 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/USASN1402915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd11b25c13213b823c7b64ba6f1114b0a25891bce66bb2b272eca877fcc28c716. 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/USASN1402917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x651cd19cecde69bd30e2ff4bc85a16c018b0b522e52ff7bad6cb46ba2d718e10. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/USASN1500924.
Vamos Hacer un Rap (feat. Paste el Pupilo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0717ee98c2713f9625bf3897a73f6f33c94b47c140c155112284e6753d4194f5. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USHM81698681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0717ee98c2713f9625bf3897a73f6f33c94b47c140c155112284e6753d4194f5. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USHM81698681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaefdd141912f07f7132305ef6efc07a047d2aaf41c0d4f2f2952831edf1c55dc. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/US3Z41800209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50d871dedba2f04afcea2aa585c512e60b83e517b5562338a4bddd1835678b75. Chain 2 (Bitcoin): anchored in block 958706 (2026-07-19T08:50:34Z), 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/US3Z41800210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9baae46f87749b1eac5c10c4db4f6a681cdea6c55d47e6c9f8178d9a072ba3e7. 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/US3Z41800213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21a931ccf5d58877dac7ceeb57b6f9cdafd61aef0e3fb9c007be87d5c04ac584. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZDA71912182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e4e757ad7b7fb67b62e6a49335ec4831a2649518637a2c0083b3819f49a8ad2. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QT3F22402361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dbde448fad27929759d0d313db005bc6c55976b94e5afa0df194e0ed400ee00. 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/QT3F22402362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf6faa732f3eb32c76e44476d7923fa6ee47ba07b86900dcd53d9be94987ce9b. 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/QT3F22402363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81c67f87a9cee0706c5994f8112e829ecf22706bfcdf87661576a706c5f2deb5. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/QT3F22402364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x220074e5873001aa674c63f570c0820fbabc0886d91b8d7e34e581b525b084db. 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/QT3F22402365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x307e5fc6981050b645d3e70c12c3d00c14df10754532cf496898727ecedec7bd. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QT3F22402366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37fa9053f074acd80bd13711f3911e0170fad56db1090f401a017952d5f44e08. 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/USANG2527359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c3d0dbbe2f093f1a562379ada0d6855ef0579701de3358ad186ede72c5f102. 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/FR6V80960040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f88ec4b653b96948c40282251be6c69759208bf5b906043d248b416c8c37161. 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/FR6V80960025.
Underground Reggaeton "The Best Of Radio Version", Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b62c6d40c00dadaa18944a691b87c386192b4e898f85fafb77e0199494aa13e. 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/USDHM1106633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff85192f25fe62e204241c792143a72ac927eb5b0fba643b08a86a25c8b7e224. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZQAY2282982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc30e25be4869a78d28ccf79e997e3ddc2b4344f52432eae8f8ad0430695e4408. 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/QM4TW2187924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadff0e13f9c31b7ac3f67ecf134ea86efda90781801076bebf0f1f8fbc168f67. 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/QZDQH2140087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb29f20e3d9008d031aeb58bddfed23710a82c0db7106179c0f358d3a90bd8747. 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/USDHM1100066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e87e10a92987a3109a0111ac3474ebc3ee8e197b5e9eb2bc3b88d6d29279241. 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/QZDQH2141726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadff0e13f9c31b7ac3f67ecf134ea86efda90781801076bebf0f1f8fbc168f67. 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/QZDQH2140087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f499d3936b128db6e61f398ee73599498ce29f4c7426a36ffc2b5b17d0091bf. 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/FR6V80960036.
El de las Manos Magicas: Underground Edition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3e1e7668e46bf2b49ecb822e6396b9baf0d0b8a40e7f374c4b8c62af78e3416. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:48:51Z), 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/US7VG1930593.
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 0xcde1bf6694d2d04f206b9c8d81b1be864f5ac66c78a1bb63697884fbdcf3e84d. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/US3Z41800211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21bd5ca4ee91307dc2af6568ad5e0270ebfae1980c62e8986b291de359ff885e. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/QM4TW2256677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4146d1bb7750dabef1abce8b0c2efb059badb2f2eddb8b5c3b9297217880e848. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/US7VG1500301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8afa8db2615517a08f08408e19380ac31f42417078a9a70bbf9a618432b496d. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/USCGH2124604.