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 0x3ea3ca6e22a0741b2a90fbc4fa444c3f0fb72e3af5dd81879725f90af75f8f19. 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/5c7071c4-ebb5-43cf-aeab-f6cfcc7d837c.json and https://artists.proofprofile.net/proofs/artist/5c7071c4-ebb5-43cf-aeab-f6cfcc7d837c.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 0x7fb7ed94ba5d43bbd5063de77b361f9a8ae2c5d6fae18f0182e6327bb8886fef. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/AR42D1900009.
Un Té De Tilo Por Favor (Deluxe Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1020e99fdb778e319d9476d1cd17eb908f434c7b69b3af80c3eeff3c1f414d1. 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/AR42D1800024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1851d4587a13844a921138f68e37da38feb46932b8603d2a4aa96598a86a215. 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/ES71G1835906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b4cceb39c6c9b084d7a5f32faf539a4593be688abda6fe554b33fcb224d75c6. 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/AR42D1800022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2651a32a3010cd05d698279872bb99c29c21174d6b38cfa2f0e2daf46b6e3184. 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/AR42D1600334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8084f88b214b0510d0e94b24410f556f648cd186f8cd0bd73b84f71328c04be. 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/ES71G1765259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb045d4a2215afa20496bf5469e3989af0964d9054b5a5cdebf472b5bfb3c06ea. 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/AR42D1800025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33ed80b9beb67373dd9e221d899608f7c52763145e42e9142802603ffd23151d. 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/AR42D1800026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b468e3231ab0c9abab8fadb193f4d1f4d607b4bc021c43d7c56275ad84a84b0. 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/AR42D1800027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4694d0e3b041a0dd2fe925e266abc3f66c5f975d831eb5d77d06b60e9679a315. 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/AR42D1800028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3365f0c6015ec969c94364e0001e09dff09bf1f4d9f8bcdc1814208f481cc46d. 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/AR42D1800029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4217f13432f0da322e6e91ca87613a1a8d7f7cac8ae3ea20ae84ec9917923c55. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/AR42D1800030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fb7ed94ba5d43bbd5063de77b361f9a8ae2c5d6fae18f0182e6327bb8886fef. 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/AR42D1900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9671c9e3c3950e1a0f2447495d0fd51842d968a97955711d1d78c8d797fcd6e. 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/AR42D1900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b493a4988489661b62658c9bd3d2f808747f7916ae07f28f2213d7f5b8a0a43. 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/AR42D1900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe23b06d4834740a04e830d29918194b0936a78814d2469477192f821318b7007. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/AR42D1900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62a6d0d43114a08c672e1129df67c1259dd1fca2b1cad1e6f1ab0fefdf1dc46a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/AR42D1900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b493a4988489661b62658c9bd3d2f808747f7916ae07f28f2213d7f5b8a0a43. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/AR42D1900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe23b06d4834740a04e830d29918194b0936a78814d2469477192f821318b7007. 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/AR42D1900012.
Un Té de Tilo Por Favor (Edición Deluxe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cb8b2c9f4d480c9d445c9dcdf472ef79ebbdc528ff1c4e9fecc36536b02e8ad. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/AR42D2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcf64cc2ae77162559d6eb2583f08a2007a2258d1c32ed6c38443bc6d625b859. 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/ARFKZ2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc8d8ad6e96dc8313daca58b72c7eaa17943411d92c2ab5fcfc6a2011ea96b08. 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/ARFKZ2300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46aaaebb8323ee9404fc9be919cc57a94de59ac08b3515fd51f74d8213cc1beb. 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/AR22T2000001.
Días de Gallos (Música Original de la Serie de HBO Max)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16a0894507e0ba231d524ce3efcd1037a23d615b7a9cfbaadff52a81da7f9b0c. 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/ARXE82100009.