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 0x05ee8e9452a25fc965ef79dabf925761cb440d241e9d3b74304188a74f8071e1. 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/133d1c28-1436-4a9f-81e4-090194ff1b0d.json and https://artists.proofprofile.net/proofs/artist/133d1c28-1436-4a9f-81e4-090194ff1b0d.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 0xa9148555922ecf47c4bd068ab5e85dfe93100cfe7c7215a74d39deb72e84bd91. 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/UYM121602251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe907de8ae8d7241213c8c4c15de6f39840b80947d548a05fd6d8ade63c45fbd2. 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/UYM121602259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bd46f28c2b8b649fa7100e1ef47b7b2786e9e77e7df259594abe5a266ece6a1. 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/UYM121602260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf5d256eb0a1975dce9d615f5b5f6ffb875398f9583253f42f783e931d6b0794. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/UYM121602261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9f6453d2df815e693e2c04e239942b63c4bfef555006def2c3747bfd0c8b479. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/UYM121700317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x463bfd3dbe1bf7a150eb3ca85e3c559d114aea84417d9afde3244f7463943ee4. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-19T23:32:54Z), 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/UYM121602122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc9b5c3eb582b1b8862457f2cdae61db1cff801441c051a8e6fdcd58d63ee644. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/UYM121805618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07d1d23a3ccf92e8c17b73e024ef0bdd224bbcf9b5d9a0d32d218a5af7a5f45b. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-19T23:53:04Z), 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/UYM121705894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc9b5c3eb582b1b8862457f2cdae61db1cff801441c051a8e6fdcd58d63ee644. 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/UYM121805618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfdc4826ba4ca0d7eefc226e9f2bdc2bdef8419081e39634849b334f39042a63. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/UYM121902064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07d1d23a3ccf92e8c17b73e024ef0bdd224bbcf9b5d9a0d32d218a5af7a5f45b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/UYM121705894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57e7910fc58a6165f6d7a50c2c5ca7e5d6d453e128a6fc7d336ed4349ed28b1a. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/UYM121705927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde4ea094b9ad4f684ed3e633234d55725b0a71cce1122af30b20791fcdc790f5. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/UYM121806320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb194fb70ede4fab28a1297bfd1da3e3b6591a9d7f0a7f246ffff1ee361a8e8b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/UYM121806313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bda36b676eb5760ad74606a6569da58f1cdbf0594542e0e77425c59b704644c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/UYM121806295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbdb2e2af7761c049109851554f6add404f40ff654784a83bec404a32219f409. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/UYM121805641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe806a2db3d5ae7abde0f542aa99f748fedb85553e290a218eac2395572f36af. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/UYM121902067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0041b1379750975b9d06349f3dee840842f17d62439973d393c790bfdc4d41fc. 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/UYM121805640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb194fb70ede4fab28a1297bfd1da3e3b6591a9d7f0a7f246ffff1ee361a8e8b. 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/UYM121806313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ef66685983be7399b0bb146233f59198e27db7be8440344a74169db8104130. 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/UYM121903928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81f0fac34534e743782ea5b08c3422022429b279141641ec322ed449d04a06fd. 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/UYM122003151.
Pasó de Moda (Montevideo Music Sessions)
De Ahora en Adelante (Montevideo Music Sessions)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9509178bda7baeaf1f30d670c9b7b7b572f04add21a0b67758b1d1ca02b12763. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:30:02Z), 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/UYM122200340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x309a5c1b88cd6ec78a38edb98d2f45a23de63b03e7fd00ee4bc28ee58f382477. 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/UYM122200113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc626c0a118f052f6eac21f094a31b4505ea1651e658e0f4a7368a5c229b6130b. 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/UYM123002172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc41e398464202eb9ec94a390ca3ce77cefddf6625e616703378396a09c775a3. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/UYM123002283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ff82e0f3b53ba5d29855bbec72a8f05609eb4b5a7dd537b5497b6ab58fe7474. 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/UYM122401000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd74ff65dc3b3655c025256d4159f1bdf2a9b02ffd17e33c23242c3178ddd97cd. 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/UY01G2400061.
Sesión Nostálgica Vanesa Britos (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a2c5c4e61b4db361a7eea5af0494c40e506d3262bd20f7676c662bc17faafa4. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/UY01G2400092.