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 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 0x79fb065b0742f380cf14890d5b128d628336e42e705190ca42a6a4a746518e79. 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/01b4d5bc-e048-4c74-8aa7-5ea666ff2f84.json and https://artists.proofprofile.net/proofs/artist/01b4d5bc-e048-4c74-8aa7-5ea666ff2f84.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 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 0xc56f9c316f35c2671b438ce2c04d4a83a71a34d0388b66542c4b1698f58e0675. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/PEBQ91503426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93f59ec6c0b87666d61beb719c1f7ec242825d7d768770dd03f8f72e77a340ad. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/PEBQ91503429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c6504eb2d485a7d0c73f1faba6433ebd4c0d485e7b6760d8375b4fcb33a128d. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/PEBQ91503435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79dac6a45dcbd69acc69c6873b037368f3e7e3b51e0dfc0af05869f06ac5691e. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/PEBQ91503436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x325b13136fb9f044197625f735098b3e69557ccb72c99824f4f43141a20ef3db. 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/PEBQ91504494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d41a3a4eea4ffcdf816e05b371e312bb38d2d9c3816ac9fcdda5c46e43caf73. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/PEBQ91504495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17cf475e1ef50bb7c11af83734de524b23c7d9625fd98579fd910faf425898ba. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/PEBQ91504498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x730ce183b165931f977bcdc518b5b28f840aaff80544daa116025f352cfb3871. 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/PEOS11710084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe93fb18d8e917ab7915aeb943baa0d2559f3fa94fb3da936cda991b43eb75415. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/PEOS11710083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94190c53ba52aba6d92da17ae6799db668829f3cd30a33632920253723f004c1. 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/PEOS11710088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x481fab9006c4423d9da2bfaf0cb3e547f19cf3fba3acfb21ab792681945045cf. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T13:10:36Z), 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/ES71G1918078.
Mix Olayero (Karma, Criminales, Música Visceral, Ver Más Allá) [En Vivo 10 Años]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x460e856da7317f7bb1eb305a18c0d134c3958a9f9d7c7f7a115cb8448ca5f7b5. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/ES71G1938868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1653f8dff63b62def4bf78fe0facedfdcfe904d3e47270d80dd7704239c35ccd. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/ES71G1922221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6728fd3134d53011129e1843c6719e3db30da4a51f4c61c717ad07eec8367e2f. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ES71G1923077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe7125abd1eae9696a1fff415d90f65f79afb02f661230db069bd6241e90fbdb. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ES71G2144329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e79663a7809c66844af10743461d04e8c0e27d75e2fab3bb27bb0940cdc2ed4. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/ES71G2144331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x959619b59295f7c0a25c40fef5a348d75c93ba513adc8c57a66f32302cbe4b6b. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/ES71G2213530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e89d23bb5e2296d3e441e499eb887a49fa4c1bad9699843bbecaf8b74215030. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/ES71G2236307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93f7cc1f758d3f0aef85f43219e6c842ffd00f0c79382206221c165a28915cca. 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/ES71G2406575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4e206f683d75952fc06dbbc2fc6d74bb83093095da5f454c11d41d38c7b5fe8. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/ES71G2406578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b51ec5ffb5e63743901df58c2c28d0dbe1a17e3a13b7f88c9d01cfd494e18b0. 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/ES71G2421016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb192f22a43bfe09d631d857f304b2a60c2cab0690c7aeec1cccea56918d594e2. Chain 2 (Bitcoin): anchored in block 957057 (2026-07-07T15:21:38Z), 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/ES71G2431203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce0d5657fa41e26ff3f75207535436276640f12bf8bfa20b67f5289cffdf60a4. 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/ES71G2431202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x486a5791941a406ce6a2878e12fe467b5d32a4fe68ac3dd050bfef6801510913. 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/ES71G2431206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71b0173a7ca40768e1843a9b7cf70abc6cdfbade8fa6596c231107c88e018feb. 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/ES71G2431204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74bc9d8c03d41b321d94a03b8694889af88901ca8e82173565aa6b243ce20b9c. 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/ES71G2431191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bc7ce324df9be23878f71a6ff8c5656de6c1febd22e88fb9c151b2a1f7cb177. 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/ES71G2431207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb192f22a43bfe09d631d857f304b2a60c2cab0690c7aeec1cccea56918d594e2. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ES71G2431203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1e11d7a8501fb75cfb528d6f2da9dcde7ad415996890d0fb921562fd3813ded. 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/ES71G2431205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93f7cc1f758d3f0aef85f43219e6c842ffd00f0c79382206221c165a28915cca. 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/ES71G2406575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4e206f683d75952fc06dbbc2fc6d74bb83093095da5f454c11d41d38c7b5fe8. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ES71G2406578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2270b1dde27844565190bb4939ef3c926a872898594dd861e6dcd7decb9858e. 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/ES71G2431188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48659421cae77b6f492f3852b8f2087130668bc5c4805bf4a940b6808b59b286. 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/ES71G2431192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafa8398fa62d8488517b366a0397f9cef52558b183766ccdf19bb0cb2f3da4ab. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ES71G2431201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e9f1da0c5fc9d61ce60c4af87f9debe07b1e2144ed78a770215f2beb8d0411b. 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/PEMG91903009.