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 0x8ebce7b63b7de27796cec7343b997a3a1bb335c50f2338776f827d0b4c26ddc7. 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/5c0fc5d6-f4d9-4167-8e6a-9901bfe8368c.json and https://artists.proofprofile.net/proofs/artist/5c0fc5d6-f4d9-4167-8e6a-9901bfe8368c.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 0xf81683d3966ebec9e676b00c30d0fe0a92dbfe51f4b81a40f64772709d301b31. 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/ESA011554700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5dfe105a781fc26ba8fcf8fe37ad35b482d5fc01dc6f8582f63d7fdb6519a31. 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/ESA011554708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e5ae6fb33a7f8cb7284069cd6f435af9ef29dc3f619ca12c5b95d9adf9583e0. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/ESA011554711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2609a0bcfdd01aaf39fc1e059a03dbb948b51236365e838c8f0b202651fb5a8b. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:21:21Z), 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/ESA011559130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28c6c0a6e1ea621715bde19a0444feeb747ac48cc9942dcd0befdf97ee075188. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/USBAE1101648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7dfcc4e61618bae11c29002fb94d3eee352f849531f6983146e665ae4d8d436. Chain 2 (Bitcoin): anchored in block 958882 (2026-07-20T15:34:14Z), 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/USBAE1101649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42b683dcc31ddc5d5561353a144b8161d1e92ad823092aecae21db1c3f9b5c44. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:44:25Z), 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/USBAE1101652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd60549c5df9dcb5d56ac888788e6f52982f84b436b6deded25d42033cd1f7b4c. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USBAE1102680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9982c8cb320bc4117126ad288da51c6460eacb20f8eb8e4f2e67a2f25fc2c82. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:06:59Z), 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/USBAE1102684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdaac2ba230cff90fb17433fd42237f27e3d2d9528fa5600a6fbf463399a84c1. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USDHM1318483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ad2b77f1586d8cdacd611f4936dd667c08c084d03a699538f097783ce149fc. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/USDHM1325776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x398a7612a9e15ee107718e449b3523b26ab002400b880b7e368b6d1875c5848a. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USDHM1325790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x699d046c8ee5da2b44d887d7309138c902fd5a5b7f36df0ac8b37814051f777b. 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/USDHM1601741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe48e91381371e193509e9c8765792def01b296d4cc4088fc64c78990ec728fd6. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/USDHM1704329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ceeecc53f4e62a4c4e53ef0461d7c57ffa3931838ede7c06d394f7719deb25a. 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/USDHM1704331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4af3435b8884a5aebcfa435170a35b26378311ca613a6d859d9dc867e16dfbf1. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/ESA011784373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff3b0f1171410b2136e3c396f7c92942f6af87db07289ea5e30cbc261406188d. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:06:27Z), 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/ESA011784375.
PopurrÍ de Cumbias, pt. 2 (La del Moño Colorado / Sergio el Bailador / La Yerba Se Movia / La Yaquesita y la Gallinita)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a50064f3d8ae6cb3f95f29b7037f4a43e32613b47bf473c056b6d8e7c767ff0. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USDHM1916562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda6b163725f8edaa6f2f90c5a7385ffa70a31e092f2d318f38084a1b4bbafcc3. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USDHM1726468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf388a479c8978f28fa97d6c554fed4ce18a2ce83e3d6c455087c4c34975c36e5. 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/ESA011782053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaf778808adbd1b19ed76181fb03f062f2e0aeb23ba5fe902b4d7ca3acc9458f. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ESA011782054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00c3ea65fb3e34f790084053777bddab7d34191fc8b197629316afa50e964b58. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/ESA011782056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35af5076d376c6b2b519202107de102ca163adb988aa76fc4765e2800d9b627c. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/ESA011782040.
Ground Theme (from "Super Mario World") [Cumbia Version]