1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x4c8d4d6ec9a2d99225fe76cc41689d5a5269bc3d193d1c0d0279922a7db44a74. 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/00c325ab-e78c-4501-b84e-43c0fabd5478.json and https://artists.proofprofile.net/proofs/artist/00c325ab-e78c-4501-b84e-43c0fabd5478.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 → block OTSBitcoinBlock must exist at that height 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 0xcc6a7ff531e246805ec9908485236201665207414d6696b119753a22b36f2e28. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/UYS059800139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b22ae8c44e56902e73f077955d52c5d89be24d24ade46fe33e47988543ae8fb. 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/UYS059800140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfb58af7fe51b432aea4c8a9bd278276e67222448b2202c073d0dd3e665c9726. 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/UYS059800142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c782f259deb8e6000aa7d8d911111f0d1d940b7cf4c4e1c011b896234f93feb. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/UYS059800143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa732664213916fe553ddcaaa06ff068dece83c15e3579951fb16cbd2b4de55e7. 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/UYS059800144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c30990bed58dc98f34a936d95dc74f30521815548bb55546ccd6a5e84417205. 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/UYS059800146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ece8e8e4434f55823352cf4a0e39c834fefb00c00a8ba342093c386d9779ddd. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/UYS059900041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cbd87e00ca7e3013abc1ec8cc5e9482d3895938b1861758bb069c666129fb76. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/UYS059900042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e7c70f0ea593420807e45e55b41aa6260b3248556af173dffa2a44b9fe5beca. 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/UYS059900045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff137caeecdf64704179595c74c6ffc9113f35af091ab54525b73f3d7ab89bc7. 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/UYS059900047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f9ce58cd543a1b7803ca8ee358a128c961abeceeb1a082c4a2432824a7f1104. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/UYS050000054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd09200bdcd43f4987ce017bbcb2d10ed382c0740e82c0c88469b57a124e358c5. 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/UYS050200153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ba969c140f2cdf57c256f4b048bf0223793fcad2b31a00ee44c4d7a2b7a1864. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/UYS050200155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72e2ee85872846e228dca3f7d7af77620683f145092880475b49a61cd243f01f. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/UYS050200156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fc043df720a051b799231f8230fa21a5612c0edb55038b9b739e9204beb8b2a. 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/UYM120500026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a082a0cb7869d38e0ac229d657b76271eba2b5ec92335dcbbf105d3ea1a0a24. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/UYM120700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e11be3abb8839b9c9dc19a8f201c689fd9ede794ec56f7a9ecaabbb4d522471. 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/UYM120700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac0be26d5b0388136dd76afe312e08bfaf5a776b4ace5ec7120ac0b1706edd6d. 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/UYM120700011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ec9f04aa4507cef69fb86cf41b01d71041680cc553e77d931a4708d47e93102. 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/UYM120700013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc2fed8640dd4f62a280d38594adaf6c72075d4e66389ab5230d8c628dc20154. 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/UYM120700015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94b3332814ed0f8e0125dce29647602d977b93d511fb697a8cb4ea314f5535c4. 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/UYM120700018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcb78d4d47ed0f7918865282ed4a85810807b6b46d8aee51cd639a57ea5e68cd. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T17:49:52Z), 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/UYM121001957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90408ca22afd04b413f89fe608953c308085899af6c4aa152b480a1e8a00c3f3. 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/UYM121001963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bc2134d87766850e5cc2b15fd9637e1f335449096e288d703d7d9888af85d58. 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/UYM120800136.
Lo Más del Siglo Uruguay, Vol. 1 & Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa732664213916fe553ddcaaa06ff068dece83c15e3579951fb16cbd2b4de55e7. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/UYS059800144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7b1dfbd46841c15ba54dbe2e552dc9dfa671608f778a3c4f449fa2ae59eb8f3. 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/UYS059800141.