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 0x7927116d3632c9a7ee12eece1b0e82ebe1f7cbf99af9c3741b0bc852c65e4a64. 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/559500b5-33b3-4ebc-97b2-a26fec149524.json and https://artists.proofprofile.net/proofs/artist/559500b5-33b3-4ebc-97b2-a26fec149524.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 0x16a889ad7b095f3fb9e3f195be40bd78899b1aa1e75962490e477419e4114589. 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/ARG991027619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa69c7fd497ca2aef54810af901b10a9c7f79f25a052e1c64096b725b110103d1. 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/ARG991027621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68a080f88d1bca91c6e0e49d513906ca1f2dd1fabaec494c2b8ee026558b8e07. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/ARG991027622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeea7f776702c035ba03874d319a93b80fb10093ff83a7e8e7f662155632e96d. 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/ARG991027623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x107285b541d080e25c0852d2f42c667dbda518a092eedfe2bd6a12a1e9e6863a. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/ARG991027625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b345bb1dacfc256058dda9d5d517e6f6a19e45cfa0aa6b10cb31e4e1475444c. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:01:50Z), 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/ARG991027626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d53c26334b3c4a876d4c19df018bb0beca471859a0a0cf88c9689f66989edae. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/ARG991027627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb29ef7cd41b039ee22df3a96a2856073475c42338699149a569664872900fac. 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/ARG991027606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa93fe25310066472e7d517cb3779d59dd3eb338f0583743096710a7e68a3ee9e. 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/ARG991027607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5426b03cd007631b2b4e74d1163c7b042ee3b79fcb1033208f1665013a23fcf. Chain 2 (Bitcoin): anchored in block 958889 (2026-07-20T16:06:45Z), 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/ARG991027608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b359e513acd56458925275cc02de608796ed7d336e9eab11f7be942010b6fcc. 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/ARG991027609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd63a394e91ab3296fb4ba3aeaad9c55910c24973d0579f4afc95911641048859. 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/ARG991027611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03a91b3b9eaf292f09c8bb89a265882d13b50e9ed6cb794c922e8251b115d554. 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/ARG991027612.
Un Velero Llamado Libertad / Mi Formula de Amor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02deed2783d49b29a3df2ded1040d0be244ff945249360c01978fc7f30e09530. 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/ARG991027615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb225ad9e83844e0d9b053d93a51a3a7b92872ce3b3fd88a118e15b2b70133387. 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/ARG991016854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7fab7d9d6864fe426c9398c5158dd78fa2abd9b0421012394e193b26cbfb674. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/ARG991016862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4495db1d2b35c284d3c5b71068d538fe7b010a591064f1995073efdbae320c4a. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T02:07:08Z), 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/ARG991016853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe0fda2f03e5b0ddbbe59953aa4d185d4532df719fc3ad6af88dcd96cf066357. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:04:02Z), 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/ARG991016857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54161803cf99f1e272d6995edce567ebd40654e8a8a135db3613337ee0b5f405. 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/ARG991016859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f6a7976769e5a67e1e378871d031628f9a7e593fae7fd67135156c7ef37ee46. 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/ARG991016864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58787a60e5a7d3b956c9d1514117157431003c6c1ec862cec7342c58749c21f4. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/ARG991017323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa101e9922c7c8d883a3c49cba35698bdc8a173cb2f42a9406fe514aa51ea4d5. 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/ARG991017324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9a49deb07784b8e64fc10fc2e94e5ddb4b2cba9fd380e6fb1bf4d6c8d9696c8. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/ARG991017325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x371d66bb1915d31f4954092d6f891c0d6d4e1987b0672425b0af5a087be398c4. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/ARG991017330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x257dc127469b5340e93cd7fe42060e36a261f858f431bbf9cfece53c0f705c1e. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:44:36Z), 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/ARG991017331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00d1dabc2325e380b45ef78e937de181cd64e2b0590e779b6993bf36f52a4671. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/ARG991017332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99c611582342d970249acb4e8ba30c1c69dadcce3503f62c0385bfeb03856e6f. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/ARG991018496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefce16de328817da274b14605fda0882539852126d5470bbc83fbee2b31fef6e. 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/ARG991018497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45bb9b3a07a29a64efea92aa1a1a9034474b4aeba14c9eb57213da3d346840ac. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/ARG991018500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x235ad69840e7847a875add825de7a46cd4745f54e189e5165deee8bff7ae54f0. 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/ARG991018501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24a30d2f260ed16e63c59cfbabc7dcb0bbf6c2e4dd9f25a7ca6742c8f48e1457. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T23:57:16Z), 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/ARG991018503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15e99e7cff1ef483a0697ab3b39c313425a5751ae821d8ae0bd3e4b61e4c3f07. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/ARG991018504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4178a6b5dff35ea63c45c4306e30a0696ba51265e230de1ecd263bc829d0d0c0. 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/ARG991018505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bacd81b00e7eb51f2f4b36877321b7716b903a95085eb798477e4991b9defcf. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/ARG991018507.
Quien Pudiera (a duo con Daniel Cardozo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d1ac57fc57b7a31ec68e4543114817c58739b38b5e84d770df138aa5e008984. Chain 2 (Bitcoin): anchored in block 958654 (2026-07-19T03:55:30Z), 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/ARG991018495.