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 0x9519d154ad9290e7fd551ea1660a52c2b23f01539c64382a2e3e423ecc08a123. 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/874449c0-f428-46cd-8ae7-eac6fdc70da1.json and https://artists.proofprofile.net/proofs/artist/874449c0-f428-46cd-8ae7-eac6fdc70da1.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 0xd99355daccdfee131077d50398af74990c14919436f8d0998317035843d88251. 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/MXF149300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b6e386fc715946d2045b2167b4a37b336f8ce407209199cc8a1d8214b65d420. 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/MXF149300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86ab24cf6decc30c659290883d9fa00f4dff3ab9d1989825cb6f19c892522422. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/MXF149300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3cdf421e23a0d5f1cef351cdcba2642eb29c8cb11ff17dd0e8e0e9b4157560b. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/MXF149400208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb40d6a698123160349ca673b3a683cc779609fddcf4794e1cb1958b8ab913595. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/TCAJI2567073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8304e5ef465a9831492cafe09e6b7d136dac45bcf3bddc80a7779b3ad15ccfc0. 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/TCAJI2567079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6477276018657abb402650571e9fcd109476f1461b1925d160a184aeffc58ca. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:08:07Z), 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/TCAJJ2567089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bce113c2c79e8ef96184db8e8d3655a2ad787ea09395f4e250ee6306ee55f36. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/TCAJI2567098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9e50190fb0883606097450309f46d0dcabf7dc4c31df7f0639e93ba7e00a898. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:42:47Z), 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/TCAJI2567112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8784c2b6c5818461682e0c29dc09e5909766f1e0d454f854e5c9cd12a434c77a. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T22:05:47Z), 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/TCAJI2567118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47dde64919430c223dee15cb1c27571c336cc5fbe3fb168a73f39ca9818495d3. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T14:01:07Z), 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/TCAJI2567126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa54672add576c78dba03d3502f9cffc20a849dbb81e4fa2ea1e3822b59de38f2. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:43:54Z), 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/TCAJI2567131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33b039745658e5544da4c3ff23efd397149e1f6ae588ca809a512a5da032dcc4. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/TCAJI2567135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e0d494dd990d442ee5091df90109496083bc13fb25a73930b50ea2f34308bfc. 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/TCAJI2567155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7c87511948407d3dc62977ea0f8619b89e137daeb6ec5f107f8c8e6d3704e86. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:18:01Z), 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/TCAJI2567161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12ad6fb33e62c265a30d4ae217da69cc0b679a357e0bc4ce8db917f39917d50b. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/TCAJI2567168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a61f372f0d7c44c15d50974185381fde15c67672f3c3cce1e4dab71ee278378. 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/TCAJJ2567172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8a67d999071217d010d78c72ea4da0539f244e86876543d23c8265188f04175. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/TCAJJ2567179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c9b19f63685640895be347f136f2c653d2cd81c91b6b406c13ed75333ab2496. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/TCAJI2567184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x609ce8d98b5c892e01d6a609c3204a045d66593d1eaf16c7e1b2f71837e94e72. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:09:14Z), 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/TCAJI2567187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed6ca938d60f7d1b15199e8a10ee3b29b7dd0a3aa4f3515764a1f8fa1dc15bf. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/TCAJI2567200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff2be3dc1f9bb85054dc2649f95f3a6bc100b453b23f2b3f44e9a9c3b5d15d21. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/MXF149600284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf637cac85639d259015442cd2a68d974a5334f17f5ddfbb4c39fa0106189e26. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/MXF149600290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fd32ec34a691a0eaab66f4ae311ba99cc0f7aa7b56beb606216cb6c82b43f5a. 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/ES34G1300908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d9e1a505074a935af2a7b218214d78a2dbf24c20075aa1e7c91dee342ad8c46. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:33:31Z), 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/MXF149500081.
Mi Historia - ( You Are the Story of my Life)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e297b7ef9ab43e64151991f4dd2593ef4f3fa8b12d26fc1726896db3b45694c. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/MXF149500079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01ce83ac7729f98250c72fdc4e17e2df476cc32fa0f396fee438435e29384f75. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/MXF149300012.