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 0xf6c5615657848432fc0eae4a26e0c675cc6fd9c2ce80d95c7878eabf86d59b33. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f05b5251-1a6a-4fe9-8a0e-913889276f81.json and https://artists.proofprofile.net/proofs/artist/f05b5251-1a6a-4fe9-8a0e-913889276f81.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 0xd0f0352fd3914c85cec0384c6ffc89817f3d172a9c6295249cb7a97782429fba. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/ESA011964106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64903ab0cda6406150fe39ba62d63c8aec368c72c0ac9aeee6d279306fdcf36c. 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/USANG1907563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c78700b509956be710376e5bb47e289210f584c4667ce4a8c7929edd58cc9de. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/USANG2095663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9242450b676239d02e64825d6d72cfa76913ea7837778a64f6d369f1d5bff90. 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/USANG2035463.
Me Vas a Ver / Ya No Siento Nada / Presiento / 11 PM / Si Se Da (Live Session)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8603abf56ca0742816d5c79e3941624c2e4ee7586c768cf30facda9897f513e8. Chain 2 (Bitcoin): anchored in block 959109 (2026-07-22T07:21:40Z), 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/ESA012070180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf71fa366dc8abf9abcb85c82f18667f8d2cbcf1017ca1d9410863ca96eddd936. 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/ESA012077749.
Tocando Fondo / Por Amarte Así / Dejaría Todo
Qué Le Pasa a Mi Ex / Se Comenta / Cómo Llora (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d90170093f9e108818face8420fd188c0f189e93287dbf1a29a2194ac3469d5. 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/QM3DF2112568.
Decídete / Fui Feliz (Enganchado Santafesino)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5935975ff97b3f0b179882b03899f21b26674e7eda055ef9574d8f452c8667f2. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/AR5UH2402183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x017bf5001a241f01d4be56829214b7f6dc0835b9b12920dd4090c5f3af54e2b3. 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/ARG991030995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a1668377c561b172d10acd6770f6f887376be969573e317e2e8a27411b6e94a. 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/QZK6M2026064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c0e73debf3f54297f435a5d371f63f694c58d804f192addbce2dcc2a989fb6a. 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/USANG2157953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfacf7c360da11750710adfc3582b52b1eddf782708be3ada9d0e6f9d66bc8155. 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/USANG2036711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd54f9cf92dbafefc08094682f7a3171b2ea579b98cd705be5ceda25454998a2. 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/AR8TN1900601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7628c0f64f76fd28df2398bbff243c377a234814e71bc18385987c096c58374a. 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/ARG991032040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec72b3204d18efe6d0550fe6cd2c8e961c4c3d746b108be504f60dfe82a15df4. 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/USANG2265793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3858b3160a2e84823b3226b296eaac6bae1cf0fa16cbb008172ad91b42fc0fe8. 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/USANG2265798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6b3f72642b04e4710b1aceda34ab4e081df194c9bd6fc7e264eea1ad8fee905. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/ARHXW2003162.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55b45c79bcc8a1167153ba3bc28e577343909bb51e235828c3ee0da9e179ae47. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/US3DF2087192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30dc406ee487e6e09df8ebfd0a6277e8ee8dd925bc859dd5253db97c9bf5f5a4. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USANG2002210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf88e98757e02e33765065db37d1502f07bfade20db9b9de23cae1985e5acd1d. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/USANG1902704.