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 0x81cfefd095d0f6b5694cdc3344aae34c040937e9eab571f6f8ab28002eaaebc3. 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/dceccf3d-f589-41f0-ac1c-96a452461791.json and https://artists.proofprofile.net/proofs/artist/dceccf3d-f589-41f0-ac1c-96a452461791.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 0xc2942745e7e903795eb3cdbcede0732406e4e200a0ec290ca77b875c191a1884. 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/USHM91141845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ead244acc45c0f93901a3db6c8dc30834a4a6f37404d2c21b65cc913b569cd0. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:36:57Z), 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/USHM91141847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d2f40547929138ca4f37f91b7fad6cd0b4e12a9b59e38e04d4db58e29881889. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/USANG2258577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54bff424b1fd57e58f07f6c9ffc2f447d6d67e465765cc692e2da583f3cab544. 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/QMFME1550047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85acab58624d728f4bd016f5d5082c366a30a139f79e171b7069efa6271a7f19. 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/QMFME1550059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cd2e9c068f94a7a2feb0cddd12d8fc7a93694c99dc405db4466da618161ca48. 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/QMFME1550048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbc1a7396c3f5d691047d1260cc2d842394d40cac5995ec9d1314163f9bc30e7. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/QMFME1550055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e796ccc3987dbb5f399b6986dbc9fd2cd3f8b7efb76a17f5e8a33a9e20c7d1a. 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/QMFME1550060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5315e0727928dce3a66b0f56ca11a2ba796ba93e934ef52a82c097992df5e61. 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/QMFME1572383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dd16d0c6b2cc82cc56c1e9dc47d30e73fd8ce9a2f96842bb03c07abf4d01c1d. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:22:35Z), 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/QMFME1572387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb705bb64f16ec6cdac1e94d282683c764ebe178c532f1fe23935e5f67630b47c. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/USL4Q1717540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12da0067dcf4ac76f4d3b6ea7a38f9ebd6ab499be7e396970083343503fe1d0a. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/USDY41855603.
La Vida Es Una (Salsa Mix) [Versión Salsa]
Noches de Fantasía (Versión Popular Colombiana)
Noches de Fantasía - Versión Popular Colombiana
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e2b22167e47ed100e9a70e2fd833fa9693fc3d25ffce89085040130c428760d. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:05:11Z), 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/QZHZ41972933.
Un Día Interminable - Popular Colombiana
La Vida Es una (Salsa Mix) - Versión Salsa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x299c9a1b315d34ce8e7defb2662a07b562bcca32706c283c1684e2e896bae016. 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/QZGLM1922867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95800072d0435a2365fee5dc4e2eae7349ea2609c3c584b656bc0777fceac282. 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/QZHZ32003791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bc9e4192f8ffedb2180b099ac76cb8c7e51efc8a6e3a8f582d065e6ce611e82. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/QZGLM2098230.
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 0x6daa90c4f150e67729381315401c88cb9b4483a364b97ab1edf323f0c3ccdf52. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/QZHZ32003785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6877cb762dd6b3fc6b0e752dac639199ec3c4d37b5307326444d2e3dbe8b78ed. Chain 2 (Bitcoin): anchored in block 960330 (2026-07-31T00:58:21Z), 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/QZHZ32003789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8b5c0ba5f9e0db51ef7e92a67aeadd528a6a9ee0b5e5831314f030505622180. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZHZ32003790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58803f4885c71455a8fb0c5bfedcad0eb3ab3c4ac74c73b49592f481b5e334a6. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/US7VG1874007.
Una Noche De Fantasía En Concierto (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49f8ad8d64f88200d15ae3661888bc08034cd8a9e25af76431f391ba130c8270. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/COC012236347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe785d263eeffa88707c0749144f48587a8f31a796744e29b6d486a5684c2ffb. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/COC012236348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c5f5a3a01cdc0dc499ec645a01ef0b78239660ea9bf854b8274b7222fca27df. 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/QMFMG1507021.
Noches de Fantasías - 30 Aniversario - En Vivo Desde El Poliedro de Caracas
30 Aniversario - En Vivo Desde El Poliedro de Caracas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ecedf9f081aa4e50c4618978b3b07d6591bdf27292a99a4085852504f04fbab. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-21T17:08:59Z), 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/AUGBT2473356.