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 0x1148e317da8b2c604cc5ebc4cc96749e06aa99fd2d94a49e54fa76ab99690db4. 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/59bce6db-7e1e-4c50-a21e-3ab1facd64e1.json and https://artists.proofprofile.net/proofs/artist/59bce6db-7e1e-4c50-a21e-3ab1facd64e1.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 0x17524d71de722f74d89f775707b2011d5439199d775bbef408c72236c9784231. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/ES94G2154401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf71af350b4190901853a54578eb6861ddd54470c1a99129ad22116ce99dfa26a. 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/ES94G2154413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8f255b5d0ffeec512a2095631647af24d6cfe796f94340bb34964faadf38da0. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/ES94G2154403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf786ad5881c97246b1032f7a1a06fcdab60c48ee0f03587355003bb0f08566da. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/ES94G2154408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x823973b291f9f57fe256f3329b8325cf19d1c61abd3d4136009215c9aeadfd50. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/ES94G2154409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc11df132d87a6626c0cc8b755ce588b32dcd14d91eb6df8ffc1e83977acbb509. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/ES94G2154411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0afac22f46f5f5976e5d2e039d47af641835eb53a15ba610108fdc8cf61458a5. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:42:14Z), 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/ES94G2154414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96cba6490135b9932cfd731a10b57e3143db9ae6e40d554588134aa5d43a9904. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ES94G2154416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c9cee0c2b5dd3272ba35bda9de9195bad768a668aa11d1a932bcd4b1cdb3df1. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-02T22:22:35Z), 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/ES94G2154417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7ed4e3c2866b058aeb6469dfde5cb98cfc4f6509a229e125d7dbb4918b1816e. 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/ES94G2400709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d6184a73ea10734641e009e51ca4b0770276b8389da4e9c769fbf69c45c8c78. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/ES94G2400706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x460b838c70d3cd49dd1507cd91cad2016aab3e0c98f056e98084da2236dde795. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-17T02:44:55Z), 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/ES94G2400703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5247ef744a3c8c1fffa0c5ad83a96ae1f3045193a72aae93d83465ae851fc8d. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/ES94G2400705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcc8ed0e8420e528715900312f6f93231a22baaad780240e7c29df0ff1944134. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/ES94G2400708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x698aee8307a14fc49ff591e60606f34fb1e5d95e0c0c83746fd28b7c33c46801. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/ES94G2400710.
La clase baja atada de pies y manos es abandonada por la supuesta izquierda en las garras de la puta ultraderecha
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c7c45a02a0b6e859973679c32a52a0afbcf790306374014c53d449b4cb21dd0. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T14:09:59Z), 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/ES94G2400711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9409cb22d51ac674fe175ebd411d7ba306dbffb3ffb36914d563356ef7c5475. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T14:02:16Z), 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/ES94G2400712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e22e95e5a7a6b32839ebb916e1ff30f9e4dda0f6ba0e87e9354ff6e180d3130. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/ES94G2400713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d7a5b4ce955975639deca241edfdd3e4d10e76ac7ed938263e9085cb40398aa. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/ES94G2400714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8946fb3413d166501729000dc517e1ab549a4ef059653fb93e3631e545651773. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/ES94G2400715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x119140f0d30a2dd0d92f5d950318936975f7f31f27da6c9cb031cab2f2bcc014. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/ES94G2400716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x254bcc621f24ad4fe88a8d9a440fc4bef369ab13b77c9ae061383a4ce4559dbe. Chain 2 (Bitcoin): anchored in block 957573 (2026-07-11T13:43:13Z), 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/ES94G2400717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc981687132edb11995c8107c37ec85141507b0c732fbe39a04ed2fd4638f7b08. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ES94G2400718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa671e690f0702ccabb93399f5bec391dc71af80ec69e212ca6bdbd26344822f. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/ES94G2400719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4971293bedd7d00ac2acf881cfc9ad04965b2d8acb33a5f78d7913ce670abfab. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/ES94G2400720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b145ab85081bf44473a71cb4a654fa512c80dd2868b28bfde028951058b4cb5. 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/ES5152200037.