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 0x557a8fd66900055ed4f1fff9ff2b8e7dd906faaada9c9ff126436d79eb62c440. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f34e73a3-94e4-4804-9f7c-f0358283624c.json and https://artists.proofprofile.net/proofs/artist/f34e73a3-94e4-4804-9f7c-f0358283624c.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 0x19a780774905eb1450735ef5809f26a7579f88d7a133930fbe3583c50fba1161. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/MXUM71002712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7df9b04f955de3d4b373ba437bc0ee8b81fb2921fd11dc9c7df80e72ae7a3d23. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/MXUM71002715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe308bda870024ce1547c23dae6f2624faca821fa1339d81962d9122a09a58540. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T04:10:10Z), 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/MXUM71002719.
Bohemia Con El Alma (En Vivo Monterrey, N.L / 2003)
El Alma Me Pedía Más - En Vivo Monterrey, N. L / 2003
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7a94e1c5ddce9441f63c3263fbe3aa60df2b1a5e147eb45a1dcc0e5256cdca4. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/MXUM71002443.
Habla Con El Viejo - En Vivo Monterrey, N. L / 2003
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c6a551346ee2ebf1fbe98ca5a2763413901225e4690cac3b227f29a67faaf4c. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/MXUM71002446.
Camino A La Vida - En Vivo Monterrey, N. L / 2003
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29c8d9e8883a6805f146d3c720025e79a8dad954e48791541f6ca4a97ef4fbdf. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/MXUM71002447.
Mi Agenda - En Vivo Monterrey, N. L / 2003
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe35e3a89c693f1717d918f1547e1be0595174adb8fd13d691b1ec431fd21c530. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/MXUM71002449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde0599c07daf4970256b264bb4b57c28887d5ad7e5dd27426099463950fa859b. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/MXUM71002450.
Madre...Cuál Es El Camino Al Cielo - En Vivo Monterrey, N. L / 2003
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40b7bab2e442fc53de0fd6bc8fc5d3a65de90dbdf8b2e9910cf75bb5bc614441. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/MXUM71002454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x544d359a484909401eeadc17485b33341efee2400a58ae1a0a5368158deccfba. 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/MXUM70806541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf74ddef348761286743f94dcfe9a324a89104d263d8f6ed4d424a0ffdc549686. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/MXUM70806544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2daf4f885a637086ff995b286f51a871d4ffb2820f4674e17e330534046df258. 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/MXUM70806548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x539781615663b4fe7daff5029a7488b4799e3306a3a4b26c815099376946829f. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/XXIMU1544117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2497e108674e8111c88a531cb4a8ca738fda9f0d550f947a32e1fbd7b845a605. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/XXIMU1544119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ddb02689dc09e1f9e5a7eeb481256bb09c2071f1a4b6888efb875296a13090c. 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/XXIMU1544123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcec3ca5271bc2c0a8bca1f1eca0e768d9e5bdbb20184803141b8cb093900d496. Chain 2 (Bitcoin): anchored in block 958920 (2026-07-20T21:01:35Z), 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/USHM81924797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa207aaebeb62b6d3a67ecf6d21124a58c9479edd2adc63cb7db5b10f075bc5d6. 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/USHM81924800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41d7a28611bdf3687d8be791536b4b7b33e94903eb5187181c1a40a9bae4af0e. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:55:26Z), 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/USHM81924801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fff8f50539cfce15ebe1ca911ac51266aab8f71e50e2feb6e9043f52a5cd541. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:28:32Z), 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/USMH92375150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x753f66d27af16b934896be072074345e0eff81303455b5d53fe2d03e6590c8e1. 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/USCGH2465949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa421956f1347738b5d315a61cf62f2e9d9b1fd6b278740c08bea686126d202d8. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:00:42Z), 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/USHM92585417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a031e37b38bc8d917a730b1d00005a70f7cc96dc5aa8da2979fd031bd6fe29a. 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/MXUM71800758.