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 0x5161259d7045b6666e3414d2b9c577737abc01b76c001c8d6fe53a9a4495873a. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a47990ce-c673-4d32-83a5-58db37135f30.json and https://artists.proofprofile.net/proofs/artist/a47990ce-c673-4d32-83a5-58db37135f30.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 0x49c841cc0c1f3046f9ac76fb4f7e29c978b46d6548339cb5b7e26b2078e7ecaa. Chain 2 (Bitcoin): anchored in block 958378 (2026-07-17T06:45:39Z), 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/ES31E2001599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18e7fb43911222d41350b22b3c103c3230badd53fc20e61261b98ca0a3f2123f. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/ES31E2101995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf657bed8e6f18ffbf7e81df1fd7b587be156cbbbbbf308352c761f9d356235e2. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:35:01Z), 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/ES31E2102000.
Sin Miedo En Tu Infierno (The Guilty Brigade)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93457a8bedf113aecaf4629f21bc8c6d390ccdd18d8923f7b32600c5aa870712. Chain 2 (Bitcoin): anchored in block 958911 (2026-07-20T19:28:59Z), 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/ES31E2102002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d98c741155e65cdc648f1eecb1c0975cb223fc8b4a1cc30f17dd6eace430286. 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/ES31E2204948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa55c06dbb92489521e134ef4d42a23b7a7f2dab63163e3fcd63662b57a8e6483. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/ES31E2204957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ea21637ac148ed5e68a4a55530aa1ca9c09d230ad1859af2a0d11ef2f872bd. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T19:00:28Z), 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/ES31E2204958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fbfb4a08a336e14f462779cc00553d9ff76ba8842c3c046f3c3a713f45780d4. 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/ES31E2302041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc91096f287f386164ac55c6e737594195d853b761f716d3ea7ca3f485527e7ef. 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/ES31E2302042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e5af67d371d980ab2ca1b7fae1e4766e1ace7483df4048a0e6587bc58ebc788. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/ES31E2302044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0b8ef36705ee892ea7984e19bd8b3b1ec1217da4e4a159150a058de910887cd. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ES31E2302046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5bcc49649d6b52c342ba10e2569cec6b0caa5776b50a0ecccd680b9fe5c7bb2. 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/ES31E2307179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8b65a551f5f16030c22728ffe0749bc0bde3ce24ba3335954a28a5f16e34a62. 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/ES31E2405775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x204f212c1eb8ab96a1af5ac6dc046f53b8acd7277dd86246037336d060997c3e. 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/ES31E2405779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bffd0cf0be2876bbf4f6af0026d8654cbcb8414c16e70ae060cecb1863d7512. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/ES31E2405782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x719bfade27383e1c61e7a37a358491caaf07a929df8ac949a3f34b2be053ad67. 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/ES31E2405783.
You´ll Never Walk Alone - Acoustic Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2140292a87e72f844ec252e49676f10e9394240e3306e44cdcb4fda59160b143. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T19:04:02Z), 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/ES31E2405785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6445dc7f1d00bdf074e10a5b461f76d7a1c2f468e57d24bb341810b676ce1099. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:28:33Z), 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/ES31E2405786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a9e03ba4430561b2ff041822c648d41fe762ae3e592e285061048addcb6e8f6. 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/QZTBD2510552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x650be6bd6d5ea1c1a2909a66c7c0a783609e38bb630ab6a0aff9de5b776553f3. 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/QZTBD2510555.