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 0x8d4600360ff37c84b7337dd8bf687263f986395d0a93cc14fde98dd305353d17. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7177f3d8-6644-49a8-bea0-2af2796ac63f.json and https://artists.proofprofile.net/proofs/artist/7177f3d8-6644-49a8-bea0-2af2796ac63f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
YacaRock Nacional (Chamamé de la Humanidad)
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 0x070faa4da699940eb0a163d544d54a0d5787e6d36d67e9de6361d1283c780570. 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/ARHXW2103877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42119de34d70839e8d237a90fa67918605c810b116cebfed19f9c624f9013260. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ARHXW2005262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeca4d3cc83e3fbf583c89b7e2045f9b3ec291552aca37b20a3680c3238712c88. 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/ARHXW2103472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x011be4b96d64c8a917ea09c55e8bfdf4113e57306278f452828d049f9182996c. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-16T13:47:02Z), 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/ARHXW2104433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e069f1c6546fb24caa415892bb54ad7e7fb1740361cc370333711d86535b0fb. 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/ARHXW2101890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbc1dae0955976c7eb0ae351fdb83acdf918a4fb76161abbd066dc43e52e00de. 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/ARHXW2104432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c445cf778174d1aaf8f0ddd87e871c5afc127207d911b5cfcc1e0822d637c78. 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/ARHXW2002691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69f6433954462fc3c752061b96b5fa9d14e3a2a32c43a41b00b993af405fe0e4. 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/ARD371700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb179f1cb3183d1c5f1eb06c73dec0cd2d20a9ac46eebe9ea25261d31eeff226. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/ARHXW2302151.
Luar - Acústico Circular 20 Años (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c41e9293c97a54894402837a648c22695872d2054287b53c8db54bac26d7b3a. 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/ARA901500456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99df9000d1b46656d68f2345e8b4ca9cf7012877184e1d47ce8691668163c5da. 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/ARA901500461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf92805cfadf5b7eebac5f4099509e4d5e1ecc258cdb0b69bb5c9796cbb624f09. 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/ARA901500464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x436476eff3c31e456499a66715360c3c7ddb1921dd721fbe56f21885d1adac96. 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/ARHXW2401701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd68c4337bfbc1dac54c8a55f8c301abecce9918dfcff034bc66ece07da10a472. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ARHXW2401229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x802a48a78915dfcc7df67601838dd1d7fcd7ff2b659febff3360704eb1146aea. 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/ARHXW2301401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x070faa4da699940eb0a163d544d54a0d5787e6d36d67e9de6361d1283c780570. 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/ARHXW2103877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e069f1c6546fb24caa415892bb54ad7e7fb1740361cc370333711d86535b0fb. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ARHXW2101890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42119de34d70839e8d237a90fa67918605c810b116cebfed19f9c624f9013260. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ARHXW2005262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd739e1b0d98c21d1525f79ebff322061570891fe452d2c05849b3e51eb2bdd5. 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/ARHXW2000157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa79a290f1fd15570cea37d647a0610ad974efaa1082191b71b9b8b5e2536180. 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/ARHXW2000156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b2e0ea4155577036321fff5dcb13ced4498bef110e409eb24d64e87d1c9a7bc. 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/ARHXW2000142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a8502c88b5d23e85bc4ff9de44fdf3aaf9ac40a28923b17609c380d497eae2. 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/AROFB1700049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29dfec9efb1522dc503e47866e8cb9c2def41d21f014545216310120eed1c3a6. 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/ARHXW2000143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd739e1b0d98c21d1525f79ebff322061570891fe452d2c05849b3e51eb2bdd5. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ARHXW2000157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aba99f2824e31e9ce9ff1b8f3c11c5cb1541dd4c31b59fe4e3ebedc2270916b. 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/ARWID2100699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x679b5bda7a00377956fa6b8d0d4a60ada2ea5aa2b0062928dcc2c68c349667ed. 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/QZAKB2421725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5c63bbde664fe8bea0f8de4198e845b13032bdaab694ede8138890faa35ccc0. 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/ARR6V2400257.
Hasta habernos vuelto hermanos (Renaciendo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x657f6bdb8fcb5814a8ca1dcac015bdbcca6356ae155aaddb07367867a533db02. 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/ARR6V2400259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cbe6b6edc13383f8f9126eb4b35a4f852405828d92e0a4541fab55de0bd3a9c. 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/ARR6V2400261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a03281f8546e39ebfd5c41b4f69c8d8a96ab91447dc42065bd7fe33d625cb78. 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/ARR6V2400262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26019e4ce94c79e6eb75f64ad7d1f1037587bcbe10a51b260c805ee7c1241492. 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/ARR6V2400263.