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 0x0d7386c462260499b03b23485712cec3d00ad1641204c3910d573008658bbfb7. 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/7d4081eb-5734-4615-b026-6dd4d4850403.json and https://artists.proofprofile.net/proofs/artist/7d4081eb-5734-4615-b026-6dd4d4850403.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 0x4b1d859bd6127c77daba9f89c75f55233a3cec2bb4cd0b34395fc8d832a7ec17. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/USDY41685316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x847df29194a89e24a885d9f56500297fab8b23145a1a4e6824828b63ce858089. 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/USHM81822481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x249e10d5ac25a16e103bf8987fe4f48661a1e11b58065567d028adac05a1e87c. 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/USHM81822487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb55d4f2b68c8c23005c0e3795820ccfd647d4a8ed2177fb456df976025f7fb90. 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/USHM81822490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a1c70c4dd5ee4b6b5d38525afb087cd217bb8876d2402b1387a0232dd0df721. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:43:22Z), 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/USHM81879315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60922cc49e2e2a55b0006470f66745d095ed34e4d32f39b373d70ec44a7adb15. 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/USHM91842847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef87a4bd84548385ab7d4903b9dd619b4d5bb66cba017a3fd445ba628990db89. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:09:06Z), 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/USHM91842848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf07655c010b1394df6328392e85576b7cd224f859175e3c5cb622a00ee4f806. 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/USL4Q1886173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19a365a720f488563409659cd4c74feb2a4acc173e452d5d62016d23bc86c6ff. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USCGH1976841.
Me Duele Tanto Recordarte 3 (feat. Fer Angell)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc7f0aacdffafd855173ca9d75331ceddebd4357fd2fe8d6eedfab204c5160ac. 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/USCGH1976844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x880352ca4dd5c63e7e01c2220800d32c1595a30df76e4e1289daa8693a82ab31. 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/USHM21948303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3857c1da3a2e5dd659cd1a7282ed41bdf8c82efe482592c3c64aed2071084b02. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T19:58:52Z), 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/USHM21948305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd4b3145366ea6ac4bb7cb0931bed7bdf98dca50a0b43a7b4a049f7c8f072c0b. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/USHM21948308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb396aa410b312d7efbf50301f522570fb13edc2503d01d5802ad0217fb41141f. 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/USHM91984462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x843d5fc8f7178969f287e06f24806d963c8691f36b1ca3243c62de6777f5f86b. 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/USHM91984464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0710374b0d4f2bc2db3c0d3ec520af62ec7aca37b85cc014df0a484737c06477. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:07:24Z), 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/USL4R1933141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4e8ec33528f7e2221d0454e27967fff4a8cedf2716221ff0bb06bccab6d1a78. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:40:53Z), 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/USL4Q2011621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x866d1db51cd4d7fc25ab3606ef6e7972d9a4db06a732ce05aadcf33f698a7a52. 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/USCGJ2212515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c043e99c45343bfaa7fd0cd4fbc1e30e8cd2a1c2d721f2f4e27df4cb6d771ee. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/USHM92235496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f0155f84c74ac4c3257448dd2481bf89f847237d2f25b90b93dc588225837af. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USHM22338145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ccf8c754ac12b85cf0ec525d0acc6b67b1e8e709c38e6e825cc2b991f0b4fe4. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USDY42578106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46878cff32fac2fb87c1779eb3afb9d467bb51300765f30d7045e7fdac34dbcb. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T08:06:41Z), 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/USHM22515857.