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 0x414372005cee767ad601979568330fc8bb0c6f0eee72bbbf33eb8daa965f01b7. 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/d40107ab-2f45-409e-b701-327941b2bf5b.json and https://artists.proofprofile.net/proofs/artist/d40107ab-2f45-409e-b701-327941b2bf5b.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 0x0d60aa050e481b639de00af98016d7fe71d1759e845b8abce61ba98222005b6f. 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/USEPP0610148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf14c3afb1f12015c813fb173397c560fcd1cb0b4931b3b3a3279f7fbbccdf66e. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/TCABZ1425523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3606111c038ef5b272057ed0fdaee84326bb5c2c35ee531a345a9b70b051d6e9. 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/TCABZ1425525.
No Hay Quien Pueda (feat. Karel Y Voltio)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc689ba9dad8d6235bac0859ae068a0fc97eef79efb06a78f346d1747de73790c. 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/TCABZ1425527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebee62a4d67709c69ddba4c16db828dad45a9e22c3bc405ad1b5df023334f97a. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/TCABZ1425529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d57fad1b771ef3eb78debf5414a2cd19bcd6e963e5ed06651c9498bb0330883. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/TCABZ1425530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99db351231acd155e77f5241879f15d7ccfeaf9523d95f7c3463d342afd718c7. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/TCABZ1425532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fe3f982696c947211514b5dca966709b7ac630297fe9dfd6a8846ec1825d3b2. 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/TCABZ1425535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9efc44094c1e73135a113e197fed18cc27a78c39d3720224dccc909a05bee267. 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/TCABZ1425537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8bfa2bdbb87c952c602b12cf656eb0b67f14661d05d0c5e3260c818f94c77f9. 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/TCABZ1425538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e3c2389ec47b16322bd0d6918707ad18f3e5a295a0350546b1d201c0e096886. 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/TCABZ1425541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3200b3070e99983ada99e3e22e5be9835808536e50e24fe654fdec77ea000f6. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/TCABZ1425543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75bd054d5ea762b05a92dd93aa18fd8cc72a9801bbf62df13ab35bcaf8efa59c. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/TCABZ1425544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf25f059d721d65ae75f213ed18e20068cee40ddd953b11d6796b025666ca475. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/TCABZ1425545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7698b05913cd09626a92c09befd7a8178a6228c9bf1c1fc011fe9e537ebfc87e. Chain 2 (Bitcoin): anchored in block 960285 (2026-07-30T17:26:40Z), 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/TCABZ1425546.
Playero Greatest Hits Street Mix, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3bc93c8dbed8b2ca14d0b9739f901a8f6f6667129c0b4f4dcdc6292978b036d. 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/USDHM1102760.
Underground Reggaeton "The Best Of Radio Version", Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b714371c92d835a1491c9f17290b93c86f05ceebc4c88162a4f5701d9e20fc9. 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/USDHM1106636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2b84dbf388e97a5723ba704aae1c48dfcbb10a1c6c5ba99d6e19bdf9f5788ab. 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/USDHM1102791.
Gargolas 2: El Nuevo Comando Segundo Ataque
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8159284752a9ba6a5879b9d740b45381f52047046f8f9a54dc64d5a71b8f84d. 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/QM4TW2029491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf37b11311f3fe88d1ad20cb2d8906ac458f6d3cf9378c824ebc2b93101481177. 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/TCAEJ1931062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5397fe17bf7b05efdc2e76518d2f8258b8404fbf2a020336f67165b65306b70. 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/FR59R2296122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda0a5dad951c24907c9ba5a4523e1519a7c30c96bb330dacaffb2a62264af37b. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/FR59R2296126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84f27c9e8b35a105db96dc6853ecc76aff7ebf7b293a45fef701c4904f9fa89d. 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/FR59R2296273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9151c3630022c322fb655dd82e1d4b08d9141b2930dcb0f3693fe8aa5113755d. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/FR59R2296276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe332e346832dac6adbcba161a372ed4ae31853c06601f7e217d766af1a86c8b0. 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/FR59R2296280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc9879b1882d93ef8266bd78807e91f87afef0addf550786fcdce1d4ab105c9e. 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/FR59R2296283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ec5d3b9fb99f422f0b689796d462f903ac84bb15ac3935320b870c439b4d7cf. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/USJE60710283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74521d04ab0ec503b68dd76e8ed94e25dad1e4cf8d397a5345736e032ceae643. 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/USDHM1011299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaba13460f7e729087e172cfa0ba809172256572271cd4bcdebd6512d730a113e. 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/USDHM1011300.
Playero Greatest Hits Street Mix, Vol. 3 Sextravaganza
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb2dd768550c2e3c73cee6c5fcf16f1eb90fc44c9f8187a38228febeeadc897e. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/USDHM1103930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x660e6388e99e58237daf3a29fca85d1dd3142a6980dc7197edba9ae997dafc7f. 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/USB271600180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9d768720502d930d25f2ecb8bcc88543c577665c9fd35d6039c431293348a57. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/USEL10400423.